Palatability Ratio (PR) describes the effect alternate food has upon the rate of kill in the choi... more Palatability Ratio (PR) describes the effect alternate food has upon the rate of kill in the choice bioassay relative to the no-choice bioassay. PR50 and PR95 are the palatability ratios (95% confidence limits) at LT 50 and the LT 95 estimates (see Robertson & Preisler 1992, Pesticide Bioassays with Arthropods). LABORATORY TESTINGS: German cockroach; Blattella germanica (L.
control. Test insect was the susceptible 'Jwax' strain of Blattella germanica (L.), obtained from... more control. Test insect was the susceptible 'Jwax' strain of Blattella germanica (L.), obtained from a laboratory culture. Three fipronil concentrations were evaluated and compared to Demon® EC at 1 oz/gallon and a check. Treatments were applied into cracks and crevices of kitchen cabinets (38.1 cm x 38.1 cm x 76.2 cm) with a B & G sprayer equipped with a 'crack and crevice' nozzle tip. Treated cabinets were held in individual mock-kitchen chambers (304.8 cm x 182.9 cm x 266.7 cm) (outside dimensions) by treatment. Kitchen chambers are located in the sub-basement of Whistler Agricultural Research Building, Purdue University. Two cabinets were assigned to each treatment, and about 100 ml of formulated material was applied for each treatment. Check cabinets did not receive any insecticide treatment. All cabinets were provisioned with food, water and harborages. Residual effectiveness of treatments was evaluated at 2, 5, 7, 14, 28, 42, and 56 d after treatment. At each post-treatment period, 500 cockroaches including 200 males, 200 females and 100 nymphs (4 th and 5 th instars) were introduced into each kitchen. After 24 h, dead cockroaches were collected and counted. There were four replicates for the fipronil treatments, and two replicates each for the Demon® EC and untreated control treatments. Percent mortality was calculated from the number of dead cockroaches as a function of number of cockroaches introduced into each kitchen. ANOVA models were used to compare residual effectiveness of treatments at each sampling interval and means were separated with DMRT at a = 0.05. A percent kill of >=70% was set as the benchmark for a treatment to be classified as effective.
sticky traps. Traps were placed under and above the kitchen sink, behind the refrigerator, behind... more sticky traps. Traps were placed under and above the kitchen sink, behind the refrigerator, behind the stove, in the utility/pantry area, and on the floor beneath the toilet water tank. Populations were sampled before initial bait application (0 wk) and at intervals thereafter (1, 2, 4, 6 and 8 wk). At each sampling, traps were left in place overnight and collected the next morning. On retrieval, trap catches were counted within 3-4 hr as number of small nymphs (1 st-3 rd instar; nymphs did not emerge in the trap), large nymphs (4 th-6 th instar), adult males and females, gravid females (females carrying the egg case). A minimum catch of 12 cockroaches per apartment before treatment (n = 6 traps) was required for inclusion of an apartment in the trial. A range of 3 to 5 apartments was established for each treatment at prereatment counts. Each apartment served as the experimental and replicating unit. Trap catch data were used to evaluate the efficacy of treatments on population reduction. All treatments were applied as sprays from 1gallon B & G compressed air sprayers, equipped with a crack-n-crevice injector tip. This was supplemented where needed with the fine fan nozzle for appropriate spot-treatment sites. Treatments were applied to suspected harborage sites especially to the general areas where sampling traps were placed. Treatment efficacy was determined at each post-treatment census by calculating percent reduction in cockroach populations for each experimental unit using the formula: % reduction = (T iT o) / T i * 100, where T i and T o are pre-and post-treatment counts, respectively. Negative percent reductions were converted to zero before analysis. Arcsine (check)p transformed reductions were analyzed with ANOVA models and means were separated with Tukey test (a = 0.05) to determine significance among treatments at post-treatment sampling intervals. The average pre-treatment trap count was 94.6 (3.7-298.8). There were no significant differences in the average pre-treatment counts for the group of apartments assigned to each treatment. The chlorfenapyr treatments provided satisfactory control of cockroaches in the apartments as indicated by significant reductions in post-treatment trap counts over a period of 8 wks. This level of control was not significantly different from the level recorded for Demon® EC. At 8 wks after treatment, trap catch reduction was greater than 70% for the three treatments.
RESIDUAL EFFECTIVENESS OF FIPRONIL FORMULATIONS ON FIVE SURFACES, 1996: Panel tests were used to ... more RESIDUAL EFFECTIVENESS OF FIPRONIL FORMULATIONS ON FIVE SURFACES, 1996: Panel tests were used to compare residual effectiveness of the EC and WDG (water dispersible granules) formulations of fipronil against the German cockroach. Treatments were applied onto masonite, 'oily' masonite (masonite panels coated with 2 ml of vegetable oil to simulate 'greasy' condition in a kitchen), unpainted plywood, stainless steel and vinyl tile surfaces. A mechanized spray tower apparatus (Spraying System Tee-Jet SS8001E) equipped with a stainless steel tip was used to apply treatments. The sprayer was calibrated to deliver 25 mg/m 2 of formulated materials at a pressure of 50 psi. Two sets of panels (15.24 cm x 15.24 cm) were treated for each formulation. Panels were allowed to dry overnight in the laboratory, after which a set of panels was taken to the greenhouse and stored in vertical racks, exposed to sunlight. The other set of panels was aged in the laboratory and was stored in vertical racks in dark conditions. Cockroaches were exposed on treated panels at 1, 30, 90, and 180 d after treatment. Enough panels were treated to allow exposure of test insects on fresh panels at each aging period. Contact toxicity and residual effectiveness were evaluated at each aging period by confining six fifth instars on treated panels for 60 s with a 12.7 cm Plexiglas ring. After exposure, test insects were held for 72 h in clean glass jars, provisioned with moistened dental wicks, and post-exposure mortality was recorded at 24 and 72 h after treatment. Cockroaches exposed on untreated surfaces served as control. Treatments were replicated four times. The experiment was completely randomized. Mortality data were analyzed with ANOVA models followed by Tukey test to establish significant differences between the two formulations as affected by surface, aging time, and aging environment.
Insecticides were applied to 5 single-tree replications of 6-year-old trees in a randomized block... more Insecticides were applied to 5 single-tree replications of 6-year-old trees in a randomized block design. Sprays were applied to runoff on 18 Apr (approximately petal fall stage) with a Myers V7710-5E02G hydraulic sprayer equipped with a handgun and operated at a pressure of 200 psi. Treatment effectiveness was determined on 21 May by counting the number of GPA colonies found on each tree.
A one-year field test determined the relative efficacy of a mixture of a neurotoxic insecticide +... more A one-year field test determined the relative efficacy of a mixture of a neurotoxic insecticide + synergist + juvenoid against German cockroach populations. The Munsyana Homes, a multi-family public housing complex located in Muncie, Ind., served as the test site; individual apartments served as the replicated experimental unit. Sprays were applied using 3.8 liter compressed air sprayers equipped with Multee-jet nozzles. Due to the high cockroach populations and poor sanitation, a general “clean-out” procedure was followed. All accessible harborage areas throughout the apartment were treated resulting in approximately 0.25 gal of spray used per unit; volumes of spray applied varied due to apartment size and the amount of harborage to treat. The initial treatment consisted of a mixture of Commodore WP, Nylar, and PBO-8 at rates of 0.3, 0.187, and 0.1% AI respectively. Follow-up treatments were made at 1, 2, 3, 4, 5, and 6 month after the initial treatment and consisted of Commodore a...
Laboratory tests determined the contact activity and residual persistence of the chitin inhibitin... more Laboratory tests determined the contact activity and residual persistence of the chitin inhibiting benzoylphenyl urea, lufenuron, applied to tempered Masonite, oily-frass masonite (1 g cockroach frass per 100 cm2 of Masonite treated with 1 g of vegetable oil), and unpainted plywood panels. Applications were made at 0.5 and 1.25 ml/103 cm2 panels (10 and 25 mg/m2) using a mechanized spray tower apparatus equipped with a stainless steel nozzle tip, Spraying Systems TeeJet 800IE, at a constant pressure of 25 psi. Treated panels were stored in vertical racks in the laboratory (constant temperatures and dark conditions) or a greenhouse (high temperatures and exposed to sunlight) for residual aging. Aging periods evaluated were 0, 1,2, 3, 6, and 12 months. Test insects were reared in 7- by 5- by 3.5-inch plastic boxes that had sides lightly greased with a mixture of petrolatum and mineral oil and that were equiped with ventilated, friction fitted lids to prevent escape. A treated panel wa...
Tests were conducted to determine the feasibility and the effect of using pheromone/food-baited t... more Tests were conducted to determine the feasibility and the effect of using pheromone/food-baited traps in a trapping system within a commercial date palm plantation on the spatial dynamics of the red palm weevil (Rhynchophorus ferrugineus Oliv.) (RPW). One registered pheromone lure (Ferrolure+ or called pheromone 7 in the test) and four experimental aggregation pheromone lures (called pheromone 5, 6, 8, and 9) were evaluated in ten farms from 1998 to 2000. The effect of trapping on the spatial patterns was based on the number of weevils caught per trap per specific period. Efficacy of various pheromones used was determined based on the number of weevils caught per trap per time period and the percentage of tree infestations. There was a variation in trap catches of the pheromone lures used during the growing seasons. Two major population peaks were noticed: the first peak started early-March and ended mid-May; the second peak started mid-September and ended late-December. The total n...
<jats:p>يقدم هذا المعجم تغطية شاملة وأساسية لمصطلحات علم الحشرات الجنائي الذي يختص بالوقائع... more <jats:p>يقدم هذا المعجم تغطية شاملة وأساسية لمصطلحات علم الحشرات الجنائي الذي يختص بالوقائع الجنائية المرتبطة بالحشرات التي ينظر إليها رجال القانون، مراعيًا تطبيق الخبرة الطبية والتحليل العلمي السليم، معتمدًا على الدلائل والوسائل الموجودة في علم الحشرات. وقد اختيرت المصطلحات الأكثر استعمالاً في الكتابات العامة والأوساط العِلمية والعَملية المتخصصة والسائدة في كثير من مساقات علوم الحشرات وعلوم الحياة والعلوم الطبية وغيرها من التخصصات، ووَفقًا لمتطلبات برامج التعليم في معظم كليات الزراعة والعلوم الطبيعية والطب البشري والبيطري في الدول العربية. ويستفيد من هذا المعجم مجموعة واسعة من القراء بمختلف متطلباتهم المعرفية؛ فبالإضافة إلى الباحثين والعاملين في مختلف المؤسسات الأكاديمية والبحثية والصناعية، فإن المعجم سيساعد طلاب الكليات ومراكز الأبحاث والأدلة الجنائية، التي لا تزال مقرراتها أو مراجعها باللغة الإنجليزية، في الحصول على المقابل العربي لآلاف المصطلحات التي يمر بها الطالب في أثناء دراسته والباحث خلال بحثه؛ وذلك لأن فهم أي علم في العالم العربي أو استيعابه لم ولن يتحقق تحقُّقًا كاملاً إلا عن طريق لغة الطالب والباحث، ألا وهي اللغة العربية. ويحتوي هذا المعجم على أكثر من 5000 مصطلح علمي وفني إنجليزي، تغطي مجالات التقنيات الجزيئية الحديثة في علم الحشرات الجنائي وتحليل البيانات الحشرية وسجلات قضايا الحشرات الجنائية وتقاريرها، وأدوات جمع الحشرات وحفظها وتربيتها في المختبر والأسماء الشائعة والعلمية لأنواع الحشرات ذات الأهمية الجنائية والتركيب الخارجي للحشرات وبيولوجيتها وجمع الأدلة والبيانات الحشرية من مسرح الجريمة وتغييرات ما بعد الوفاة أو الموت وتعاقب الحشرات على الجثث في البيئات المختلفة وعلم الأرصاد الجوي الجنائي وعلم السميات الحشري والمدد الزمنية منذ الوفاة</jats:p>
Insecticidal activities of noviflumuron formulated as dust, gel, and suspension concentrate (SC) ... more Insecticidal activities of noviflumuron formulated as dust, gel, and suspension concentrate (SC) were evaluated against the German cockroach, Blattella germanica (L.), in the laboratory and in apartments. In laboratory studies conducted in large cockroach arenas (1 m 2 boxes), population reductions averaged 99.9 ± 0.07, 97.7 ± 0.2 and 65.6 ± 16.7 % for the dust, gel, and SC, respectively, after 16 weeks of exposure. For flufenoxuron dust, population reductions averaged 98.1 ± 0.2%. There were no significant differences between noviflumuron formulations compared to flufenoxuron. There were significant differences between the population sizes in the noviflumuron treatments compared to the untreated control. Cockroach popula-tions not exposed to toxic baits increased in size by more than 1365.5 ± 69.9%. In a 2-year study conducted in apartments, noviflumuron dust and gel baits gave residual control of German cockroach populations. There were no significant differences between the perfo...
The toxicity of five commercial bait formulations (Raid Max, Combat, Maxforce, Avert PT310, and M... more The toxicity of five commercial bait formulations (Raid Max, Combat, Maxforce, Avert PT310, and Magnetic Roach Food) against various stages and sexes of JWax-susceptible and Muncie-resistant strains of German cockroaches, Blatella germanica (L.), was investigated in choice and no-choice bioassays. The role of strain, bait, stage, sex, and feeding bioassay main effects on cockroach mortality was determined. The biological toxicity of all five baits differed markedly among the different stages and sexes of both strains in both types of feeding bioassays. The range of LT50s for each bait tested against various life stages in choice bioassays was wider and slower in killing cockroaches than in no-choice bioassays. The LT50s of nymphs differed significantly for each bait tested. Large nymphs were less susceptible to baits than small nymphs. Except for exposure to Maxforce bait, all baits tested affected adult genders differently. Palatability ratio values were highly variable in this stu...
Journal of Agricultural and Urban Entomology, 2000
Abstract Chlorfenapyr, a new active ingredient discovered by American Cyanamid Company was found ... more Abstract Chlorfenapyr, a new active ingredient discovered by American Cyanamid Company was found to have excellent insecticidal activities against field populations of German cockroaches. Trap catch reduction in cockroach infested apartments treated with the ...
Palatability Ratio (PR) describes the effect alternate food has upon the rate of kill in the choi... more Palatability Ratio (PR) describes the effect alternate food has upon the rate of kill in the choice bioassay relative to the no-choice bioassay. PR50 and PR95 are the palatability ratios (95% confidence limits) at LT 50 and the LT 95 estimates (see Robertson & Preisler 1992, Pesticide Bioassays with Arthropods). LABORATORY TESTINGS: German cockroach; Blattella germanica (L.
control. Test insect was the susceptible 'Jwax' strain of Blattella germanica (L.), obtained from... more control. Test insect was the susceptible 'Jwax' strain of Blattella germanica (L.), obtained from a laboratory culture. Three fipronil concentrations were evaluated and compared to Demon® EC at 1 oz/gallon and a check. Treatments were applied into cracks and crevices of kitchen cabinets (38.1 cm x 38.1 cm x 76.2 cm) with a B & G sprayer equipped with a 'crack and crevice' nozzle tip. Treated cabinets were held in individual mock-kitchen chambers (304.8 cm x 182.9 cm x 266.7 cm) (outside dimensions) by treatment. Kitchen chambers are located in the sub-basement of Whistler Agricultural Research Building, Purdue University. Two cabinets were assigned to each treatment, and about 100 ml of formulated material was applied for each treatment. Check cabinets did not receive any insecticide treatment. All cabinets were provisioned with food, water and harborages. Residual effectiveness of treatments was evaluated at 2, 5, 7, 14, 28, 42, and 56 d after treatment. At each post-treatment period, 500 cockroaches including 200 males, 200 females and 100 nymphs (4 th and 5 th instars) were introduced into each kitchen. After 24 h, dead cockroaches were collected and counted. There were four replicates for the fipronil treatments, and two replicates each for the Demon® EC and untreated control treatments. Percent mortality was calculated from the number of dead cockroaches as a function of number of cockroaches introduced into each kitchen. ANOVA models were used to compare residual effectiveness of treatments at each sampling interval and means were separated with DMRT at a = 0.05. A percent kill of >=70% was set as the benchmark for a treatment to be classified as effective.
sticky traps. Traps were placed under and above the kitchen sink, behind the refrigerator, behind... more sticky traps. Traps were placed under and above the kitchen sink, behind the refrigerator, behind the stove, in the utility/pantry area, and on the floor beneath the toilet water tank. Populations were sampled before initial bait application (0 wk) and at intervals thereafter (1, 2, 4, 6 and 8 wk). At each sampling, traps were left in place overnight and collected the next morning. On retrieval, trap catches were counted within 3-4 hr as number of small nymphs (1 st-3 rd instar; nymphs did not emerge in the trap), large nymphs (4 th-6 th instar), adult males and females, gravid females (females carrying the egg case). A minimum catch of 12 cockroaches per apartment before treatment (n = 6 traps) was required for inclusion of an apartment in the trial. A range of 3 to 5 apartments was established for each treatment at prereatment counts. Each apartment served as the experimental and replicating unit. Trap catch data were used to evaluate the efficacy of treatments on population reduction. All treatments were applied as sprays from 1gallon B & G compressed air sprayers, equipped with a crack-n-crevice injector tip. This was supplemented where needed with the fine fan nozzle for appropriate spot-treatment sites. Treatments were applied to suspected harborage sites especially to the general areas where sampling traps were placed. Treatment efficacy was determined at each post-treatment census by calculating percent reduction in cockroach populations for each experimental unit using the formula: % reduction = (T iT o) / T i * 100, where T i and T o are pre-and post-treatment counts, respectively. Negative percent reductions were converted to zero before analysis. Arcsine (check)p transformed reductions were analyzed with ANOVA models and means were separated with Tukey test (a = 0.05) to determine significance among treatments at post-treatment sampling intervals. The average pre-treatment trap count was 94.6 (3.7-298.8). There were no significant differences in the average pre-treatment counts for the group of apartments assigned to each treatment. The chlorfenapyr treatments provided satisfactory control of cockroaches in the apartments as indicated by significant reductions in post-treatment trap counts over a period of 8 wks. This level of control was not significantly different from the level recorded for Demon® EC. At 8 wks after treatment, trap catch reduction was greater than 70% for the three treatments.
RESIDUAL EFFECTIVENESS OF FIPRONIL FORMULATIONS ON FIVE SURFACES, 1996: Panel tests were used to ... more RESIDUAL EFFECTIVENESS OF FIPRONIL FORMULATIONS ON FIVE SURFACES, 1996: Panel tests were used to compare residual effectiveness of the EC and WDG (water dispersible granules) formulations of fipronil against the German cockroach. Treatments were applied onto masonite, 'oily' masonite (masonite panels coated with 2 ml of vegetable oil to simulate 'greasy' condition in a kitchen), unpainted plywood, stainless steel and vinyl tile surfaces. A mechanized spray tower apparatus (Spraying System Tee-Jet SS8001E) equipped with a stainless steel tip was used to apply treatments. The sprayer was calibrated to deliver 25 mg/m 2 of formulated materials at a pressure of 50 psi. Two sets of panels (15.24 cm x 15.24 cm) were treated for each formulation. Panels were allowed to dry overnight in the laboratory, after which a set of panels was taken to the greenhouse and stored in vertical racks, exposed to sunlight. The other set of panels was aged in the laboratory and was stored in vertical racks in dark conditions. Cockroaches were exposed on treated panels at 1, 30, 90, and 180 d after treatment. Enough panels were treated to allow exposure of test insects on fresh panels at each aging period. Contact toxicity and residual effectiveness were evaluated at each aging period by confining six fifth instars on treated panels for 60 s with a 12.7 cm Plexiglas ring. After exposure, test insects were held for 72 h in clean glass jars, provisioned with moistened dental wicks, and post-exposure mortality was recorded at 24 and 72 h after treatment. Cockroaches exposed on untreated surfaces served as control. Treatments were replicated four times. The experiment was completely randomized. Mortality data were analyzed with ANOVA models followed by Tukey test to establish significant differences between the two formulations as affected by surface, aging time, and aging environment.
Insecticides were applied to 5 single-tree replications of 6-year-old trees in a randomized block... more Insecticides were applied to 5 single-tree replications of 6-year-old trees in a randomized block design. Sprays were applied to runoff on 18 Apr (approximately petal fall stage) with a Myers V7710-5E02G hydraulic sprayer equipped with a handgun and operated at a pressure of 200 psi. Treatment effectiveness was determined on 21 May by counting the number of GPA colonies found on each tree.
A one-year field test determined the relative efficacy of a mixture of a neurotoxic insecticide +... more A one-year field test determined the relative efficacy of a mixture of a neurotoxic insecticide + synergist + juvenoid against German cockroach populations. The Munsyana Homes, a multi-family public housing complex located in Muncie, Ind., served as the test site; individual apartments served as the replicated experimental unit. Sprays were applied using 3.8 liter compressed air sprayers equipped with Multee-jet nozzles. Due to the high cockroach populations and poor sanitation, a general “clean-out” procedure was followed. All accessible harborage areas throughout the apartment were treated resulting in approximately 0.25 gal of spray used per unit; volumes of spray applied varied due to apartment size and the amount of harborage to treat. The initial treatment consisted of a mixture of Commodore WP, Nylar, and PBO-8 at rates of 0.3, 0.187, and 0.1% AI respectively. Follow-up treatments were made at 1, 2, 3, 4, 5, and 6 month after the initial treatment and consisted of Commodore a...
Laboratory tests determined the contact activity and residual persistence of the chitin inhibitin... more Laboratory tests determined the contact activity and residual persistence of the chitin inhibiting benzoylphenyl urea, lufenuron, applied to tempered Masonite, oily-frass masonite (1 g cockroach frass per 100 cm2 of Masonite treated with 1 g of vegetable oil), and unpainted plywood panels. Applications were made at 0.5 and 1.25 ml/103 cm2 panels (10 and 25 mg/m2) using a mechanized spray tower apparatus equipped with a stainless steel nozzle tip, Spraying Systems TeeJet 800IE, at a constant pressure of 25 psi. Treated panels were stored in vertical racks in the laboratory (constant temperatures and dark conditions) or a greenhouse (high temperatures and exposed to sunlight) for residual aging. Aging periods evaluated were 0, 1,2, 3, 6, and 12 months. Test insects were reared in 7- by 5- by 3.5-inch plastic boxes that had sides lightly greased with a mixture of petrolatum and mineral oil and that were equiped with ventilated, friction fitted lids to prevent escape. A treated panel wa...
Tests were conducted to determine the feasibility and the effect of using pheromone/food-baited t... more Tests were conducted to determine the feasibility and the effect of using pheromone/food-baited traps in a trapping system within a commercial date palm plantation on the spatial dynamics of the red palm weevil (Rhynchophorus ferrugineus Oliv.) (RPW). One registered pheromone lure (Ferrolure+ or called pheromone 7 in the test) and four experimental aggregation pheromone lures (called pheromone 5, 6, 8, and 9) were evaluated in ten farms from 1998 to 2000. The effect of trapping on the spatial patterns was based on the number of weevils caught per trap per specific period. Efficacy of various pheromones used was determined based on the number of weevils caught per trap per time period and the percentage of tree infestations. There was a variation in trap catches of the pheromone lures used during the growing seasons. Two major population peaks were noticed: the first peak started early-March and ended mid-May; the second peak started mid-September and ended late-December. The total n...
<jats:p>يقدم هذا المعجم تغطية شاملة وأساسية لمصطلحات علم الحشرات الجنائي الذي يختص بالوقائع... more <jats:p>يقدم هذا المعجم تغطية شاملة وأساسية لمصطلحات علم الحشرات الجنائي الذي يختص بالوقائع الجنائية المرتبطة بالحشرات التي ينظر إليها رجال القانون، مراعيًا تطبيق الخبرة الطبية والتحليل العلمي السليم، معتمدًا على الدلائل والوسائل الموجودة في علم الحشرات. وقد اختيرت المصطلحات الأكثر استعمالاً في الكتابات العامة والأوساط العِلمية والعَملية المتخصصة والسائدة في كثير من مساقات علوم الحشرات وعلوم الحياة والعلوم الطبية وغيرها من التخصصات، ووَفقًا لمتطلبات برامج التعليم في معظم كليات الزراعة والعلوم الطبيعية والطب البشري والبيطري في الدول العربية. ويستفيد من هذا المعجم مجموعة واسعة من القراء بمختلف متطلباتهم المعرفية؛ فبالإضافة إلى الباحثين والعاملين في مختلف المؤسسات الأكاديمية والبحثية والصناعية، فإن المعجم سيساعد طلاب الكليات ومراكز الأبحاث والأدلة الجنائية، التي لا تزال مقرراتها أو مراجعها باللغة الإنجليزية، في الحصول على المقابل العربي لآلاف المصطلحات التي يمر بها الطالب في أثناء دراسته والباحث خلال بحثه؛ وذلك لأن فهم أي علم في العالم العربي أو استيعابه لم ولن يتحقق تحقُّقًا كاملاً إلا عن طريق لغة الطالب والباحث، ألا وهي اللغة العربية. ويحتوي هذا المعجم على أكثر من 5000 مصطلح علمي وفني إنجليزي، تغطي مجالات التقنيات الجزيئية الحديثة في علم الحشرات الجنائي وتحليل البيانات الحشرية وسجلات قضايا الحشرات الجنائية وتقاريرها، وأدوات جمع الحشرات وحفظها وتربيتها في المختبر والأسماء الشائعة والعلمية لأنواع الحشرات ذات الأهمية الجنائية والتركيب الخارجي للحشرات وبيولوجيتها وجمع الأدلة والبيانات الحشرية من مسرح الجريمة وتغييرات ما بعد الوفاة أو الموت وتعاقب الحشرات على الجثث في البيئات المختلفة وعلم الأرصاد الجوي الجنائي وعلم السميات الحشري والمدد الزمنية منذ الوفاة</jats:p>
Insecticidal activities of noviflumuron formulated as dust, gel, and suspension concentrate (SC) ... more Insecticidal activities of noviflumuron formulated as dust, gel, and suspension concentrate (SC) were evaluated against the German cockroach, Blattella germanica (L.), in the laboratory and in apartments. In laboratory studies conducted in large cockroach arenas (1 m 2 boxes), population reductions averaged 99.9 ± 0.07, 97.7 ± 0.2 and 65.6 ± 16.7 % for the dust, gel, and SC, respectively, after 16 weeks of exposure. For flufenoxuron dust, population reductions averaged 98.1 ± 0.2%. There were no significant differences between noviflumuron formulations compared to flufenoxuron. There were significant differences between the population sizes in the noviflumuron treatments compared to the untreated control. Cockroach popula-tions not exposed to toxic baits increased in size by more than 1365.5 ± 69.9%. In a 2-year study conducted in apartments, noviflumuron dust and gel baits gave residual control of German cockroach populations. There were no significant differences between the perfo...
The toxicity of five commercial bait formulations (Raid Max, Combat, Maxforce, Avert PT310, and M... more The toxicity of five commercial bait formulations (Raid Max, Combat, Maxforce, Avert PT310, and Magnetic Roach Food) against various stages and sexes of JWax-susceptible and Muncie-resistant strains of German cockroaches, Blatella germanica (L.), was investigated in choice and no-choice bioassays. The role of strain, bait, stage, sex, and feeding bioassay main effects on cockroach mortality was determined. The biological toxicity of all five baits differed markedly among the different stages and sexes of both strains in both types of feeding bioassays. The range of LT50s for each bait tested against various life stages in choice bioassays was wider and slower in killing cockroaches than in no-choice bioassays. The LT50s of nymphs differed significantly for each bait tested. Large nymphs were less susceptible to baits than small nymphs. Except for exposure to Maxforce bait, all baits tested affected adult genders differently. Palatability ratio values were highly variable in this stu...
Journal of Agricultural and Urban Entomology, 2000
Abstract Chlorfenapyr, a new active ingredient discovered by American Cyanamid Company was found ... more Abstract Chlorfenapyr, a new active ingredient discovered by American Cyanamid Company was found to have excellent insecticidal activities against field populations of German cockroaches. Trap catch reduction in cockroach infested apartments treated with the ...
Uploads
Papers by Walid Kaakeh