The objective of this work is to study the biology of spiny chrysomelid, Dactylispa dohertyi (Ges... more The objective of this work is to study the biology of spiny chrysomelid, Dactylispa dohertyi (Gestro, 1897) on apple plantations (Malus domestica Borkh.) in Jammu and Kashmir. India having varied agro-climatic conditions ranging from tropical, sub-tropical to temperate conditions. Apple is a cherished and economically important fruit crop in Jammu region of J & K State which is severely attacked by both larvae and adults of the pest, Both adults and larvae defoliate Apple plants, reduce their vigour and kill tender shoots. During regular surveys in the apple orchards, the twigs of apple plantations were found damaged heavily by the pest. The infested leaves gave the appearance of being burnt. Thus, an attempt was made to study the biology of this pest in Jammu as no earlier record of the pest has been obtained from the region so far. The insects were reared in the laboratory at room temperature (10.84°C-32.87°C) and relative humidity of 26%-80% on apple plantlets. All life stages ex...
In the present study, life history of green apple aphid was studied during July to November month... more In the present study, life history of green apple aphid was studied during July to November months on apple host and the data on total life period (pre reproductive, reproductive and post reproductive periods) was recorded. Total progeny produced and total nymphal period was also calculated. The detailed biology of the pest has been recorded for the first time in Jammu province of J&K state on apple plants.
Aeolesthes holosericea Fabricius (apple longicorn borer) is a serious pest of apple trees in Jamm... more Aeolesthes holosericea Fabricius (apple longicorn borer) is a serious pest of apple trees in Jammu Province of JK 6-10 years and above 10 years). The borer infestation rate on different apple cultivars viz. Red Delicious, Ambri, Golden Delicious and American Apirogue ranged between 4.3-15.30%. Variation among Infestation rate in different age groups of apple cultivars is also presented in this paper.
Detailed bionomics of Apple longicorn borer, Aeolesthes holosericea Fabricius has been recorded f... more Detailed bionomics of Apple longicorn borer, Aeolesthes holosericea Fabricius has been recorded for the first time in India on apple plantations. The insects were reared in the laboratory at temperature ranging between 10.84°C-32.87°C and relative humidity of 26%-80% on apple billets. Larvae being wood borers cause considerable damage to apple trees. There are seven instar stages. Larvae of apple longicorn beetle while feeding on the apple trees took about 17.23±0.21 months and 13.66±3.31 days to develop from first instar to mature larva. This period included the overwintering period of 4-5 months. Adult longevity for male and females were 10.55±0.44 days, 17.23±0.21 months and 13.66±3.31 days and days respectively. The pest has a total life span of approximately two years (25.16±1.83 months). So far, no report is available on culture of Aeolesthes holosericea Fabricius under laboratory conditions to facilitate evaluation of developmental stages against known control measures and th...
Management of Apple longicorn borer, Aeolesthes holosericea Fabricius was attempted using differe... more Management of Apple longicorn borer, Aeolesthes holosericea Fabricius was attempted using different treatments, viz. Check untreated, Mud plugging, Petrol plugging, Odonil plugging, Para dichloro benzene, Carbaryl, Dichlorvos and Aluminium phosphide to evaluated their bio efficacy against the pest. In all the treatments the borer holes were plugged with mud after treatment while plain mud plastering was done in control. All the treatments were significantly effective against the pest compared to check but Dichlorvos gave best results (100%) in reducing the pest population after 30 days upto 60 days after treatment. The order of efficacy of different treatments was Dichlorvos followed by Carbaryl ˃ Odonil plugging ˃ Aluminium phosphide ˃ Para dichloro benzene ˃ Petrol plugging ˃ Mud plugging.
The present investigation was aimed to study the seasonal variation, percent infestation and effe... more The present investigation was aimed to study the seasonal variation, percent infestation and effect of important weather factors viz. rainfall, relative humidity and temperature on the population dynamics of yellow tailed tussock moth Euproctis scintillans Walker (Somena scintillans Walker) in J&K State of India for the first time. Seasonal abundance of the pest was recorded on monthly basis in various apple orchards from March 2008 to February 2011, located in Jammu. Studies revealed that the pest remained active in the field for six months from June to November during all three studied years. Peak infestation was recorded during September. Correlation analysis indicated that maximum temperature, morning relative humidity, evening relative humidity and average relative humidity showed a highly significant positive correlation (p≤0.01) with the pest population. Pest population also had a significant positive correlation (p≤0.05) with average temperature and minimum temperature. Howe...
Stebbing, 1914; Khan and Maiti, 1983; Ambethgar, 2003; Bhalla, 1968; Butani and Jotwani, 1975; Ti... more Stebbing, 1914; Khan and Maiti, 1983; Ambethgar, 2003; Bhalla, 1968; Butani and Jotwani, 1975; Tiwari et al., 1982 and Rahman and Khan, 1942. Since the State of Jammu has remained virgin with regard to the entomology of the area, taking account of this, the present investigation was inspired to initiate the work on the distribution, host plants, morphology and biology of Aeolesthes holosericea Fabricius, an important emerging pest of apple plantations from Jammu region. The present communication forms a part of findings so far made regarding Aeolesthes holosericea Fabricius in Jammu region of J&K State
Records of the Zoological Survey of India, Dec 1, 2017
Hausmann (most serious pest), Aphis pomi De Geer and Quadraspidiotus perniciosus Comstock, as abu... more Hausmann (most serious pest), Aphis pomi De Geer and Quadraspidiotus perniciosus Comstock, as abundant amongst all whereas others including Reduvius delicatula Distant, Putala rostrata Melichar, Nezara viridula (Linnaeus), Halyomorpha halys Stal, Halys dentatus Fabricius, Empoasca sp. Borysthers sp, Oxyrachis rufescens Walker and Borysthers sp. are less abundant.. Amongst the recorded Hemipterans, three new records are made by the investigator in Jammu province viz. Reduvius delicatula, Putala rostrata Melichar and Borysthers belonging to families Reduvidae, Dictyopharidae and Fulgoridae respectively. There are chances that a minor pest of today may become major tomorrow, it is therefore necessary to study them as well. Material and Methods Regular visits were made to stations viz. Bhaderwah, Batote, Kishtwar, Udhampur, Poonch and Rajouri districts of Jammu province during the study period to record the distribution, extent of damage, biological and ecological observations regarding the insect pests associated with apple plantations. The specimens were collected by the net sweeping method on the apple plantation from various localities of the Jammu Province. After collection each specimens were placed in the Insect collection bottles. Some samples are collected directly from the seed and others part of the plants. They are pinned and labled and stored in well fumigated insect cabinet of the Laboratory. All photographs have been taken with Sony cyber shot T 70 digital camera with macro function. The photographs
The objective of this work is to study the biology of Asian Citrus psyllids, Diaphorina citri Kuw... more The objective of this work is to study the biology of Asian Citrus psyllids, Diaphorina citri Kuwayama on Citrus sinensis in Jammu and Kashmir, India having varied agro-climatic conditions ranging from tropical, sub-tropical to temperate conditions. C. sinensis (Sweet Orange) is a cherished and economically important fruit in Jammu region of J & K State which is severely attacked by Asian citrus psyllids, a very serious pest of citrus in India. Both adults and nymphs suck sap of citrus plants, reduce their vigour and kill tender shoots. Citrus psylla has also been established as a vector of the 'greening disease'. Thus, an attempt was made to study the biology of D. citri in Jammu. The insects were reared in the laboratory at room temperature (10.84°C-32.87°C) and relative humidity of 26%-80% on C. sinensis plantlets. Eggs were laid in clusters on the half opened tender leaves and tender twigs. There are five nymphal stages with length varying from 0.26-2.96 mm. The incubati...
Aeolesthes holosericea Fabricius (apple longicorn borer) is a serious pest of apple trees in Jamm... more Aeolesthes holosericea Fabricius (apple longicorn borer) is a serious pest of apple trees in Jammu Province of J&K State, India. Field evaluation of four randomly grown apple cultivars-Ambri, Red Delicious, Golden Delicious and American Apirogue was conducted for the first time against apple borer (Aeolesthes holosericea Fabricius) at different Stations of Jammu province at monthly intervals for three consecutive years (2008-2011). Among each cultivar, borer infestation rate was recorded in different age groups (0-5 years; 6-10 years and above 10 years). The borer infestation rate on different apple cultivars viz. Red Delicious, Ambri, Golden Delicious and American Apirogue ranged between 4.3-15.30%. Variation among Infestation rate in different age groups of apple cultivars is also presented in this paper.
Somena scintillans Walker, belonging to the family Lymantriidae, is a polyphagous pest damaging t... more Somena scintillans Walker, belonging to the family Lymantriidae, is a polyphagous pest damaging the apple plantations is reported for the first time from different parts of Jammu province of Jammu and Kashmir, India. Incidence of the pest was ascertained by the defoliated leaves fallen from the trees. Biological studies, morphometric measurements and its distribution were studied in detail.
The present investigation was aimed to study the seasonal variation, percent infestation and effe... more The present investigation was aimed to study the seasonal variation, percent infestation and effect of important weather factors viz. rainfall, relative humidity and temperature on the population dynamics of yellow tailed tussock moth Euproctis scintillans Walker (Somena scintillans Walker) in J&K State of India for the first time. Seasonal abundance of the pest was recorded on monthly basis in various apple orchards from March 2008 to February 2011, located in Jammu. Studies revealed that the pest remained active in the field for six months from June to November during all three studied years. Peak infestation was recorded during September. Correlation analysis indicated that maximum temperature, morning relative humidity, evening relative humidity and average relative humidity showed a highly significant positive correlation (p≤0.01) with the pest population. Pest population also had a significant positive correlation (p≤0.05) with average temperature and minimum temperature. Howe...
Lymantria obfuscata Walker is a polyphagus pest infesting a wide variety of fruit and forest tree... more Lymantria obfuscata Walker is a polyphagus pest infesting a wide variety of fruit and forest trees. The objective of this work is to study the detailed life cycle of Indian gypsy moth (Lymantria obfuscata Walker) on apple plantations (Malus domestica Borkh.), which is a cherished and economically important fruit crop in Jammu region of J & K State, India and is severely attacked by the larvae off Indian gypsy moths. Larvae defoliate apple plants, reduce their vigour and sometimes the infestation is so severe that it leads to mass destruction of apple plants. Thus, an attempt was made to study the biology of this pest in Jammu as no earlier record of the pest has been obtained from the region so far. Incidence of the pest was determined by the defoliated leaves fallen from the trees which indicates an identification mark for locating the pest. Biological studies include morphometric measurements of different stages from egg to adult. Incubation period varies from 286.0 to 329.0 days ...
Management of Apple longicorn borer, Aeolesthes holosericea Fabricius was attempted using differe... more Management of Apple longicorn borer, Aeolesthes holosericea Fabricius was attempted using different treatments, viz. Check untreated, Mud plugging, Petrol plugging, Odonil plugging, Para dichloro benzene, Carbaryl, Dichlorvos and Aluminium phosphide to evaluated their bio efficacy against the pest. In all the treatments the borer holes were plugged with mud after treatment while plain mud plastering was done in control. All the treatments were significantly effective against the pest compared to check but Dichlorvos gave best results (100%) in reducing the pest population after 30 days upto 60 days after treatment. The order of efficacy of different treatments was Dichlorvos followed by Carbaryl ˃ Odonil plugging ˃ Aluminium phosphide ˃ Para dichloro benzene ˃ Petrol plugging ˃ Mud plugging.
Deudorix isocrates Fabricius is an important pest of pomegranate and guava causing extensive dama... more Deudorix isocrates Fabricius is an important pest of pomegranate and guava causing extensive damage to these fruit crops worldwide. The insect is seen damaging citrus fruits grown in subtropical belt of J&K, India in the last few years. The objective of this study was to obtain information on the biology of D. isocrates on C. sinensis cv 'Mosambi' under laboratory conditions in room temperature so as to maintain a natural environment in order to establish the peak infestation of the pest on citrus for its timely management strategies. The results showed that D. isocrates preferred to oviposit and attack along the middle region of the fruit. Biological studies include morphometric measurements of different stages from egg to adult, incubation period, duration period of larval instars (first to fifth), prepupal and pupal stage, and adult longevity (male and female). Incubation period varies from 6 to 10 days (8.0 ± 0.38 days). Larval period varies from 24 to 38 days (33.2±1.10...
ABSTRACT: Detailed bionomics of Apple longicorn borer, Aeolesthes holosericea Fabricius has been ... more ABSTRACT: Detailed bionomics of Apple longicorn borer, Aeolesthes holosericea Fabricius has been recorded for the first time in India on apple plantations. The insects were reared in the laboratory at temperature ranging between 10.84°C-32.87°C and relative humidity of 26%-80% on apple billets. Larvae being wood borers cause considerable damage to apple trees. There are seven instar stages. Larvae of apple longicorn beetle while feeding on the apple trees took about 17.23±0.21 months and 13.66±3.31 days to develop from first instar to mature larva. This period included the overwintering period of 4-5 months. Adult longevity for male and females were 10.55±0.44 days, 17.23±0.21 months and 13.66±3.31 days and days respectively. The pest has a total life span of approximately two years (25.16±1.83 months). So far, no report is available on culture of Aeolesthes holosericea Fabricius under laboratory conditions to facilitate evaluation of developmental stages against known control measu...
The present investigation was aimed to study the seasonal variation, percent infestation and effe... more The present investigation was aimed to study the seasonal variation, percent infestation and effect of important weather factors viz. rainfall, relative humidity and temperature on the population dynamics of yellow tailed tussock moth Euproctis scintillans Walker (Somena scintillans Walker) in J&K State of India for the first time. Seasonal abundance of the pest was recorded on monthly basis in various apple orchards from March 2008 to February 2011, located in Jammu. Studies revealed that the pest remained active in the field for six months from June to November during all three studied years. Peak infestation was recorded during September. Correlation analysis indicated that maximum temperature, morning relative humidity, evening relative humidity and average relative humidity showed a highly significant positive correlation (p≤0.01) with the pest population. Pest population also had a significant positive correlation (p≤0.05) with average temperature and minimum temperature. However, average rainfall did not show any significant effect on the population of E. scintillans.
Aeolesthes holosericea Fabricius (apple longicorn borer) is a serious pest of apple trees in
Jamm... more Aeolesthes holosericea Fabricius (apple longicorn borer) is a serious pest of apple trees in Jammu Province of J&K State, India. Field evaluation of four randomly grown apple cultivars-Ambri, Red Delicious, Golden Delicious and American Apirogue was conducted for the first time against apple borer (Aeolesthes holosericea Fabricius) at different Stations of Jammu province at monthly intervals for three consecutive years (2008-2011). Among each cultivar, borer infestation rate was recorded in different age groups (0-5 years; 6-10 years and above 10 years). The borer infestation rate on different apple cultivars viz. Red Delicious, Ambri, Golden Delicious and American Apirogue ranged between 4.3-15.30%. Variation among Infestation rate in different age groups of apple cultivars is also presented in this paper.
The objective of this work is to study the biology of spiny chrysomelid, Dactylispa dohertyi (Ges... more The objective of this work is to study the biology of spiny chrysomelid, Dactylispa dohertyi (Gestro, 1897) on apple plantations (Malus domestica Borkh.) in Jammu and Kashmir. India having varied agro-climatic conditions ranging from tropical, sub-tropical to temperate conditions. Apple is a cherished and economically important fruit crop in Jammu region of J & K State which is severely attacked by both larvae and adults of the pest, Both adults and larvae defoliate Apple plants, reduce their vigour and kill tender shoots. During regular surveys in the apple orchards, the twigs of apple plantations were found damaged heavily by the pest. The infested leaves gave the appearance of being burnt. Thus, an attempt was made to study the biology of this pest in Jammu as no earlier record of the pest has been obtained from the region so far. The insects were reared in the laboratory at room temperature (10.84°C-32.87°C) and relative humidity of 26%-80% on apple plantlets. All life stages ex...
In the present study, life history of green apple aphid was studied during July to November month... more In the present study, life history of green apple aphid was studied during July to November months on apple host and the data on total life period (pre reproductive, reproductive and post reproductive periods) was recorded. Total progeny produced and total nymphal period was also calculated. The detailed biology of the pest has been recorded for the first time in Jammu province of J&K state on apple plants.
Aeolesthes holosericea Fabricius (apple longicorn borer) is a serious pest of apple trees in Jamm... more Aeolesthes holosericea Fabricius (apple longicorn borer) is a serious pest of apple trees in Jammu Province of JK 6-10 years and above 10 years). The borer infestation rate on different apple cultivars viz. Red Delicious, Ambri, Golden Delicious and American Apirogue ranged between 4.3-15.30%. Variation among Infestation rate in different age groups of apple cultivars is also presented in this paper.
Detailed bionomics of Apple longicorn borer, Aeolesthes holosericea Fabricius has been recorded f... more Detailed bionomics of Apple longicorn borer, Aeolesthes holosericea Fabricius has been recorded for the first time in India on apple plantations. The insects were reared in the laboratory at temperature ranging between 10.84°C-32.87°C and relative humidity of 26%-80% on apple billets. Larvae being wood borers cause considerable damage to apple trees. There are seven instar stages. Larvae of apple longicorn beetle while feeding on the apple trees took about 17.23±0.21 months and 13.66±3.31 days to develop from first instar to mature larva. This period included the overwintering period of 4-5 months. Adult longevity for male and females were 10.55±0.44 days, 17.23±0.21 months and 13.66±3.31 days and days respectively. The pest has a total life span of approximately two years (25.16±1.83 months). So far, no report is available on culture of Aeolesthes holosericea Fabricius under laboratory conditions to facilitate evaluation of developmental stages against known control measures and th...
Management of Apple longicorn borer, Aeolesthes holosericea Fabricius was attempted using differe... more Management of Apple longicorn borer, Aeolesthes holosericea Fabricius was attempted using different treatments, viz. Check untreated, Mud plugging, Petrol plugging, Odonil plugging, Para dichloro benzene, Carbaryl, Dichlorvos and Aluminium phosphide to evaluated their bio efficacy against the pest. In all the treatments the borer holes were plugged with mud after treatment while plain mud plastering was done in control. All the treatments were significantly effective against the pest compared to check but Dichlorvos gave best results (100%) in reducing the pest population after 30 days upto 60 days after treatment. The order of efficacy of different treatments was Dichlorvos followed by Carbaryl ˃ Odonil plugging ˃ Aluminium phosphide ˃ Para dichloro benzene ˃ Petrol plugging ˃ Mud plugging.
The present investigation was aimed to study the seasonal variation, percent infestation and effe... more The present investigation was aimed to study the seasonal variation, percent infestation and effect of important weather factors viz. rainfall, relative humidity and temperature on the population dynamics of yellow tailed tussock moth Euproctis scintillans Walker (Somena scintillans Walker) in J&K State of India for the first time. Seasonal abundance of the pest was recorded on monthly basis in various apple orchards from March 2008 to February 2011, located in Jammu. Studies revealed that the pest remained active in the field for six months from June to November during all three studied years. Peak infestation was recorded during September. Correlation analysis indicated that maximum temperature, morning relative humidity, evening relative humidity and average relative humidity showed a highly significant positive correlation (p≤0.01) with the pest population. Pest population also had a significant positive correlation (p≤0.05) with average temperature and minimum temperature. Howe...
Stebbing, 1914; Khan and Maiti, 1983; Ambethgar, 2003; Bhalla, 1968; Butani and Jotwani, 1975; Ti... more Stebbing, 1914; Khan and Maiti, 1983; Ambethgar, 2003; Bhalla, 1968; Butani and Jotwani, 1975; Tiwari et al., 1982 and Rahman and Khan, 1942. Since the State of Jammu has remained virgin with regard to the entomology of the area, taking account of this, the present investigation was inspired to initiate the work on the distribution, host plants, morphology and biology of Aeolesthes holosericea Fabricius, an important emerging pest of apple plantations from Jammu region. The present communication forms a part of findings so far made regarding Aeolesthes holosericea Fabricius in Jammu region of J&K State
Records of the Zoological Survey of India, Dec 1, 2017
Hausmann (most serious pest), Aphis pomi De Geer and Quadraspidiotus perniciosus Comstock, as abu... more Hausmann (most serious pest), Aphis pomi De Geer and Quadraspidiotus perniciosus Comstock, as abundant amongst all whereas others including Reduvius delicatula Distant, Putala rostrata Melichar, Nezara viridula (Linnaeus), Halyomorpha halys Stal, Halys dentatus Fabricius, Empoasca sp. Borysthers sp, Oxyrachis rufescens Walker and Borysthers sp. are less abundant.. Amongst the recorded Hemipterans, three new records are made by the investigator in Jammu province viz. Reduvius delicatula, Putala rostrata Melichar and Borysthers belonging to families Reduvidae, Dictyopharidae and Fulgoridae respectively. There are chances that a minor pest of today may become major tomorrow, it is therefore necessary to study them as well. Material and Methods Regular visits were made to stations viz. Bhaderwah, Batote, Kishtwar, Udhampur, Poonch and Rajouri districts of Jammu province during the study period to record the distribution, extent of damage, biological and ecological observations regarding the insect pests associated with apple plantations. The specimens were collected by the net sweeping method on the apple plantation from various localities of the Jammu Province. After collection each specimens were placed in the Insect collection bottles. Some samples are collected directly from the seed and others part of the plants. They are pinned and labled and stored in well fumigated insect cabinet of the Laboratory. All photographs have been taken with Sony cyber shot T 70 digital camera with macro function. The photographs
The objective of this work is to study the biology of Asian Citrus psyllids, Diaphorina citri Kuw... more The objective of this work is to study the biology of Asian Citrus psyllids, Diaphorina citri Kuwayama on Citrus sinensis in Jammu and Kashmir, India having varied agro-climatic conditions ranging from tropical, sub-tropical to temperate conditions. C. sinensis (Sweet Orange) is a cherished and economically important fruit in Jammu region of J & K State which is severely attacked by Asian citrus psyllids, a very serious pest of citrus in India. Both adults and nymphs suck sap of citrus plants, reduce their vigour and kill tender shoots. Citrus psylla has also been established as a vector of the 'greening disease'. Thus, an attempt was made to study the biology of D. citri in Jammu. The insects were reared in the laboratory at room temperature (10.84°C-32.87°C) and relative humidity of 26%-80% on C. sinensis plantlets. Eggs were laid in clusters on the half opened tender leaves and tender twigs. There are five nymphal stages with length varying from 0.26-2.96 mm. The incubati...
Aeolesthes holosericea Fabricius (apple longicorn borer) is a serious pest of apple trees in Jamm... more Aeolesthes holosericea Fabricius (apple longicorn borer) is a serious pest of apple trees in Jammu Province of J&K State, India. Field evaluation of four randomly grown apple cultivars-Ambri, Red Delicious, Golden Delicious and American Apirogue was conducted for the first time against apple borer (Aeolesthes holosericea Fabricius) at different Stations of Jammu province at monthly intervals for three consecutive years (2008-2011). Among each cultivar, borer infestation rate was recorded in different age groups (0-5 years; 6-10 years and above 10 years). The borer infestation rate on different apple cultivars viz. Red Delicious, Ambri, Golden Delicious and American Apirogue ranged between 4.3-15.30%. Variation among Infestation rate in different age groups of apple cultivars is also presented in this paper.
Somena scintillans Walker, belonging to the family Lymantriidae, is a polyphagous pest damaging t... more Somena scintillans Walker, belonging to the family Lymantriidae, is a polyphagous pest damaging the apple plantations is reported for the first time from different parts of Jammu province of Jammu and Kashmir, India. Incidence of the pest was ascertained by the defoliated leaves fallen from the trees. Biological studies, morphometric measurements and its distribution were studied in detail.
The present investigation was aimed to study the seasonal variation, percent infestation and effe... more The present investigation was aimed to study the seasonal variation, percent infestation and effect of important weather factors viz. rainfall, relative humidity and temperature on the population dynamics of yellow tailed tussock moth Euproctis scintillans Walker (Somena scintillans Walker) in J&K State of India for the first time. Seasonal abundance of the pest was recorded on monthly basis in various apple orchards from March 2008 to February 2011, located in Jammu. Studies revealed that the pest remained active in the field for six months from June to November during all three studied years. Peak infestation was recorded during September. Correlation analysis indicated that maximum temperature, morning relative humidity, evening relative humidity and average relative humidity showed a highly significant positive correlation (p≤0.01) with the pest population. Pest population also had a significant positive correlation (p≤0.05) with average temperature and minimum temperature. Howe...
Lymantria obfuscata Walker is a polyphagus pest infesting a wide variety of fruit and forest tree... more Lymantria obfuscata Walker is a polyphagus pest infesting a wide variety of fruit and forest trees. The objective of this work is to study the detailed life cycle of Indian gypsy moth (Lymantria obfuscata Walker) on apple plantations (Malus domestica Borkh.), which is a cherished and economically important fruit crop in Jammu region of J & K State, India and is severely attacked by the larvae off Indian gypsy moths. Larvae defoliate apple plants, reduce their vigour and sometimes the infestation is so severe that it leads to mass destruction of apple plants. Thus, an attempt was made to study the biology of this pest in Jammu as no earlier record of the pest has been obtained from the region so far. Incidence of the pest was determined by the defoliated leaves fallen from the trees which indicates an identification mark for locating the pest. Biological studies include morphometric measurements of different stages from egg to adult. Incubation period varies from 286.0 to 329.0 days ...
Management of Apple longicorn borer, Aeolesthes holosericea Fabricius was attempted using differe... more Management of Apple longicorn borer, Aeolesthes holosericea Fabricius was attempted using different treatments, viz. Check untreated, Mud plugging, Petrol plugging, Odonil plugging, Para dichloro benzene, Carbaryl, Dichlorvos and Aluminium phosphide to evaluated their bio efficacy against the pest. In all the treatments the borer holes were plugged with mud after treatment while plain mud plastering was done in control. All the treatments were significantly effective against the pest compared to check but Dichlorvos gave best results (100%) in reducing the pest population after 30 days upto 60 days after treatment. The order of efficacy of different treatments was Dichlorvos followed by Carbaryl ˃ Odonil plugging ˃ Aluminium phosphide ˃ Para dichloro benzene ˃ Petrol plugging ˃ Mud plugging.
Deudorix isocrates Fabricius is an important pest of pomegranate and guava causing extensive dama... more Deudorix isocrates Fabricius is an important pest of pomegranate and guava causing extensive damage to these fruit crops worldwide. The insect is seen damaging citrus fruits grown in subtropical belt of J&K, India in the last few years. The objective of this study was to obtain information on the biology of D. isocrates on C. sinensis cv 'Mosambi' under laboratory conditions in room temperature so as to maintain a natural environment in order to establish the peak infestation of the pest on citrus for its timely management strategies. The results showed that D. isocrates preferred to oviposit and attack along the middle region of the fruit. Biological studies include morphometric measurements of different stages from egg to adult, incubation period, duration period of larval instars (first to fifth), prepupal and pupal stage, and adult longevity (male and female). Incubation period varies from 6 to 10 days (8.0 ± 0.38 days). Larval period varies from 24 to 38 days (33.2±1.10...
ABSTRACT: Detailed bionomics of Apple longicorn borer, Aeolesthes holosericea Fabricius has been ... more ABSTRACT: Detailed bionomics of Apple longicorn borer, Aeolesthes holosericea Fabricius has been recorded for the first time in India on apple plantations. The insects were reared in the laboratory at temperature ranging between 10.84°C-32.87°C and relative humidity of 26%-80% on apple billets. Larvae being wood borers cause considerable damage to apple trees. There are seven instar stages. Larvae of apple longicorn beetle while feeding on the apple trees took about 17.23±0.21 months and 13.66±3.31 days to develop from first instar to mature larva. This period included the overwintering period of 4-5 months. Adult longevity for male and females were 10.55±0.44 days, 17.23±0.21 months and 13.66±3.31 days and days respectively. The pest has a total life span of approximately two years (25.16±1.83 months). So far, no report is available on culture of Aeolesthes holosericea Fabricius under laboratory conditions to facilitate evaluation of developmental stages against known control measu...
The present investigation was aimed to study the seasonal variation, percent infestation and effe... more The present investigation was aimed to study the seasonal variation, percent infestation and effect of important weather factors viz. rainfall, relative humidity and temperature on the population dynamics of yellow tailed tussock moth Euproctis scintillans Walker (Somena scintillans Walker) in J&K State of India for the first time. Seasonal abundance of the pest was recorded on monthly basis in various apple orchards from March 2008 to February 2011, located in Jammu. Studies revealed that the pest remained active in the field for six months from June to November during all three studied years. Peak infestation was recorded during September. Correlation analysis indicated that maximum temperature, morning relative humidity, evening relative humidity and average relative humidity showed a highly significant positive correlation (p≤0.01) with the pest population. Pest population also had a significant positive correlation (p≤0.05) with average temperature and minimum temperature. However, average rainfall did not show any significant effect on the population of E. scintillans.
Aeolesthes holosericea Fabricius (apple longicorn borer) is a serious pest of apple trees in
Jamm... more Aeolesthes holosericea Fabricius (apple longicorn borer) is a serious pest of apple trees in Jammu Province of J&K State, India. Field evaluation of four randomly grown apple cultivars-Ambri, Red Delicious, Golden Delicious and American Apirogue was conducted for the first time against apple borer (Aeolesthes holosericea Fabricius) at different Stations of Jammu province at monthly intervals for three consecutive years (2008-2011). Among each cultivar, borer infestation rate was recorded in different age groups (0-5 years; 6-10 years and above 10 years). The borer infestation rate on different apple cultivars viz. Red Delicious, Ambri, Golden Delicious and American Apirogue ranged between 4.3-15.30%. Variation among Infestation rate in different age groups of apple cultivars is also presented in this paper.
Uploads
Papers by Ruchie Gupta
important weather factors viz. rainfall, relative humidity and temperature on the population dynamics of
yellow tailed tussock moth Euproctis scintillans Walker (Somena scintillans Walker) in J&K State of
India for the first time. Seasonal abundance of the pest was recorded on monthly basis in various apple
orchards from March 2008 to February 2011, located in Jammu. Studies revealed that the pest remained
active in the field for six months from June to November during all three studied years. Peak infestation
was recorded during September. Correlation analysis indicated that maximum temperature, morning
relative humidity, evening relative humidity and average relative humidity showed a highly significant
positive correlation (p≤0.01) with the pest population. Pest population also had a significant positive
correlation (p≤0.05) with average temperature and minimum temperature. However, average rainfall did
not show any significant effect on the population of E. scintillans.
Jammu Province of J&K State, India. Field evaluation of four randomly grown apple cultivars-Ambri, Red
Delicious, Golden Delicious and American Apirogue was conducted for the first time against apple borer
(Aeolesthes holosericea Fabricius) at different Stations of Jammu province at monthly intervals for three
consecutive years (2008-2011).
Among each cultivar, borer infestation rate was recorded in different age groups (0-5 years; 6-10 years and
above 10 years). The borer infestation rate on different apple cultivars viz. Red Delicious, Ambri, Golden
Delicious and American Apirogue ranged between 4.3-15.30%. Variation among Infestation rate in different
age groups of apple cultivars is also presented in this paper.
important weather factors viz. rainfall, relative humidity and temperature on the population dynamics of
yellow tailed tussock moth Euproctis scintillans Walker (Somena scintillans Walker) in J&K State of
India for the first time. Seasonal abundance of the pest was recorded on monthly basis in various apple
orchards from March 2008 to February 2011, located in Jammu. Studies revealed that the pest remained
active in the field for six months from June to November during all three studied years. Peak infestation
was recorded during September. Correlation analysis indicated that maximum temperature, morning
relative humidity, evening relative humidity and average relative humidity showed a highly significant
positive correlation (p≤0.01) with the pest population. Pest population also had a significant positive
correlation (p≤0.05) with average temperature and minimum temperature. However, average rainfall did
not show any significant effect on the population of E. scintillans.
Jammu Province of J&K State, India. Field evaluation of four randomly grown apple cultivars-Ambri, Red
Delicious, Golden Delicious and American Apirogue was conducted for the first time against apple borer
(Aeolesthes holosericea Fabricius) at different Stations of Jammu province at monthly intervals for three
consecutive years (2008-2011).
Among each cultivar, borer infestation rate was recorded in different age groups (0-5 years; 6-10 years and
above 10 years). The borer infestation rate on different apple cultivars viz. Red Delicious, Ambri, Golden
Delicious and American Apirogue ranged between 4.3-15.30%. Variation among Infestation rate in different
age groups of apple cultivars is also presented in this paper.