An FNR project entitled "Promotion of Saffron (Crocus sativus L.) cultivation for the profit of a... more An FNR project entitled "Promotion of Saffron (Crocus sativus L.) cultivation for the profit of arid and semi-arid regions' women" is led by the CRSTRA. The investigations made during 2013 and 2014 in different arid and semi-arid regions of Algeria have permitted to install Saffron (Crocus sativus L.) cultivation in five principle sites: Ain Zaatout, Beni Souik, Branis, Djemorah and Maafa (Algeria). These mountainous oases are characterised especially by lack of water. After analysing the investigation results, saffron corms were distributed to women to be cultivated. The sowing was realised on different dates. The results obtained in the first year of saffron cultivation in mountainous oases of Algeria are promising. The flowering took place in the same year in four sites; it is the case of Ain Zaatout, Beni Souik, Djemorah and Maafa. However, the flowering took place in the second year in the site of Branis. The difference in saffron flowering occurrence can be attributed to the difference in altitude, the pedo-climatic difference as well as the difference in the date of sowing.
"The aim of the present work is to determine harmful and beneficial insects associated with ... more "The aim of the present work is to determine harmful and beneficial insects associated with tomato greenhouse cultivation in the arid region of El-Outaya (Biskra, Algeria). Insect trapping was conducted using yellow water plates and yellow glue traps. Faunistic data have revealed the presence of 2754 individuals distributed on seven orders, 33 families and 38 species of insects. From specific point of view, the majority of these insects were represented by potential insect pests with sixteen phytophagous species amongst them three species attacking tomatoes. Whereas nine species are predators and two pollinators. Our results can be used to plan strategies for the management of harmful pests and beneficial insects associated with the tomato greenhouse crops in this locality. Keywords: Entomofauna, inventory, tomato, greenhouse, arid."
HAL (Le Centre pour la Communication Scientifique Directe), 2022
De nos jours, une agriculture intensive voulant répondre aux besoins d'une population croissante ... more De nos jours, une agriculture intensive voulant répondre aux besoins d'une population croissante est imputable à l'usage de pesticides chimiques de synthèse dont on voudrait cerner les pratiques pour minimiser les risques sanitaires et environnementaux. Ainsi, une enquête visant les pratiques phytosanitaires a été conduite auprès d'agriculteurs au Ziban. Aussi, l'index phytosanitaire algérien de 2007 et 2 bases de données ont été sollicités : PPDB et BPDB. Environ 105 spécialités commerciales ont été rapportées, ces dernières, correspondaient à 60 Substances actives appartenant à environ 28 familles chimiques. Aussi, >1/3 des agriculteurs ne portaient aucun équipement de protection individuelle (EPI). Les restes de cuve et l'eau de rinçage des réservoirs sont déversés à même le sol dans 78% et 95% des cas respectivement. Un référentiel des bonnes pratiques phytosanitaires doit être élaboré et adopté par les agriculteurs pour minimiser les risques sanitaires, et le transfert des pesticides vers les matrices environnementales.
L’évaluation de la résistance naturelle de 62 cultivars de fève propres à la région de Biskra dan... more L’évaluation de la résistance naturelle de 62 cultivars de fève propres à la région de Biskra dans la station des bio-ressources du CRSTRA à El-Outaya (Biskra), a permis de mettre en évidence que le thrips Odontothrips confusus est l’espèce la plus présente sur cette culture et elle a pu s’installer sur 56 cultivars, suivie par Frankliniella occidentalis (53 cultivars) et enfin Melanthrips fuscus (30 cultivars). Le classement des cultivars sur la base des tubérosités formées sur les gousses, a permis de considérer 11 cultivars comme résistants durant un premier essai. Des essais complémentaires au cours d’autres campagnes ont mis en évidence que seuls les cultivars 1 et 38 ont maintenus leur niveau de résistance. D’autres tests effectués sous des conditions semi-contrôlées ont démontré qu’O. confusus est le plus nuisible aux feuilles, alors que, F. occidentalis préfère s’attaqué aux gousses. Sur la base de ces tests, le cultivar 1 en provenance de Seriana est jugé comme le plus inté...
An FNR project entitled “Promotion of Saffron (Crocus sativus L.) cultivation for the profit of a... more An FNR project entitled “Promotion of Saffron (Crocus sativus L.) cultivation for the profit of arid and semi-arid regions’ women” is led by the CRSTRA. The investigations made during 2013 and 2014 in different arid and semi-arid regions of Algeria have permitted to install Saffron (Crocus sativus L.) cultivation in five principle sites: Ain Zaatout, Beni Souik, Branis, Djemorah and Maafa (Algeria). These mountainous oases are characterised especially by lack of water. After analysing the investigation results, saffron corms were distributed to women to be cultivated. The sowing was realised on different dates. The results obtained in the first year of saffron cultivation in mountainous oases of Algeria are promising. The flowering took place in the same year in four sites; it is the case of Ain Zaatout, Beni Souik, Djemorah and Maafa. However, the flowering took place in the second year in the site of Branis. The difference in saffron flowering occurrence can be attributed to the d...
In southern Mediterranean countries, little is known about pesticide inputs under greenhouses, an... more In southern Mediterranean countries, little is known about pesticide inputs under greenhouses, and use is rarely compared with the actual content in the soil. The contamination of agricultural soils by pesticides in the Ziban region (Algeria) was studied by comparing field surveys (farmers, sellers) and direct observations (pesticides packaging) with results of a soil multi-residue analysis using chromatography (liquid and gas) and mass spectrometry detection. Twelve soil samples (six locations at two depths) under tomato greenhouses in six localities (M’Ziraa, Sidi Okba, Ain Naga, El Ghrous, Doucen, and Lioua) were analyzed. The number of active ingredients reported by respondents and observations reached 71 AIs belonging to 34 chemical groups. Despite the wide range of AIs declared to be used by farmers, four other (unexpected) AIs have been identified and quantified by chromatographic analyzes: azinphos-methyl (AZM) (organophosphate), methyl-parathion (organophosphate), and the m...
L’objectif du present travail est de tester experimentalement les capacites de quatre especes veg... more L’objectif du present travail est de tester experimentalement les capacites de quatre especes vegetales Bambusa sp,Cyperus papyrus, Phragmites communis et Nerium oleander, afin d’epurer les eaux usees. Les quatre especes ont ete teste durant trois mois avril, mai et juin. Deux especes parmi les quatre ont presente un arret de developpement : Bambusa.sp et Nerium oleander, probablement du au fait qu’elles n’aient pu supporter les nouvelles conditions de salinite et de pollution des eaux usees utilisees.’apres les resultats obtenus le Phragmites communis montre des avantages en matiere de prelevement de : MES, MO, pH, CE, NH3+ et SO4-2. Tandisque le Cyperus papyrus montre des avantages en matiere de prelevement de la DBO5 et les NO3-. Ainsi les deux especes ont montre une aptitude a epurer les eaux usees sous les conditions climatiques de la region de Biskra. Mots cles : Bambusa sp,Cyperus papyrus, Phragmites communis, Nerium oleander, epurer, eaux usees, Biskra.
In Algeria, little is known about the jasmine moth Palpita vitrealis (Rossi) [synonym Palpita uni... more In Algeria, little is known about the jasmine moth Palpita vitrealis (Rossi) [synonym Palpita unionalis (Hubner)]. It was not previously considered to have significant economic impacts on olives. However, during 2018, in several localities in Biskra province, Algeria, damage caused by larvae feeding on terminal buds, young leaves and shoots attracted the attention of farmers and researchers. In this province, this is the first time that P. vitrealis has been reported as a pest associated with olive trees. A morphological description of this species is given, as well as information on the symptoms and damage that have been observed.
A livestock survey conducted during 2013/2015 as part of a CRSTRA project in 4 villages situated ... more A livestock survey conducted during 2013/2015 as part of a CRSTRA project in 4 villages situated at North east Biskra and south Batna in Algeria. These regions are located at elevation ranging around 250-831m asl, experiencing arid and semi-arid Mediterranean climate. Respondents of 86 families demonstrated that livestock is an integral part of the region?s mixed farming systems. Low livestock numbers per most households at present reflect the self-consumption breeding mode adapted in these regions. Currently, farmers focus on four main livestock types; goat, sheep, chicken and bee keeping in two regions, it is the case of Beni Souik and Branis , while Maafa includes beyond these types, turkey and pigeon whereas Ain Zaatout includes duck and swine beside the previous livestock types. In the same context; goat ranked first in the four regions, goat and sheep secondly then goat and poultry with goat combined to sheep and poultry in third place. Thus; most families use a combination of...
National authorized pesticides used in agriculture are one hot spot issue to human health especia... more National authorized pesticides used in agriculture are one hot spot issue to human health especially for those working in the field. The aim of this study is to evaluate the health problems of authorized pesticides. Risk assessment was evaluated by 1) Toxicological classification of the WHO, and 2) Bio-Pesticides Database (BPDB) and Pesticide Properties Data Base (PPDB). The 2015 Algerian index of phytosanitary products used in agriculture includes 173 active ingredients (IAs) belonging to 83 chemical groups represented by 757 commercial formulations (CF) categorized into: 36% fungicides, 29% insecticides and 22% herbicides. One-third of the AIs are not approved according to EC 91/414 directive. Otherwise, only 3% and 6% of AIs are classified as extremely and highly hazardous respectively. About 47%, 37% and 30% of IAs can cause eye, skin and respiratory tract irritation respectively while approximately 32%, 13%, 10% and 8% of AIs can have/be reproductive and/or developmental effects, neurotoxic effects, cholinesterase inhibitors and endocrine disruptors respectively when only 5% and almost 3% of AIs are carcinogenic and mutagenic, respectively. It is essential to periodically update the list of authorized pesticides at national level in accordance with international legislation and bans. On the other hand, farmers must be aware of the health risks due to each AI to which they are exposed. Also, farmers must wear personal protective equipment (PPE). On the other hand, continuous epidemiological studies aimed primarily at farmers and their families must be carried out and the results of these studies must be accessible to researchers.
An FNR project entitled "Promotion of Saffron (Crocus sativus L.) cultivation for the profit of a... more An FNR project entitled "Promotion of Saffron (Crocus sativus L.) cultivation for the profit of arid and semi-arid regions' women" is led by the CRSTRA. The investigations made during 2013 and 2014 in different arid and semi-arid regions of Algeria have permitted to install Saffron (Crocus sativus L.) cultivation in five principle sites: Ain Zaatout, Beni Souik, Branis, Djemorah and Maafa (Algeria). These mountainous oases are characterised especially by lack of water. After analysing the investigation results, saffron corms were distributed to women to be cultivated. The sowing was realised on different dates. The results obtained in the first year of saffron cultivation in mountainous oases of Algeria are promising. The flowering took place in the same year in four sites; it is the case of Ain Zaatout, Beni Souik, Djemorah and Maafa. However, the flowering took place in the second year in the site of Branis. The difference in saffron flowering occurrence can be attributed to the difference in altitude, the pedo-climatic difference as well as the difference in the date of sowing.
"The aim of the present work is to determine harmful and beneficial insects associated with ... more "The aim of the present work is to determine harmful and beneficial insects associated with tomato greenhouse cultivation in the arid region of El-Outaya (Biskra, Algeria). Insect trapping was conducted using yellow water plates and yellow glue traps. Faunistic data have revealed the presence of 2754 individuals distributed on seven orders, 33 families and 38 species of insects. From specific point of view, the majority of these insects were represented by potential insect pests with sixteen phytophagous species amongst them three species attacking tomatoes. Whereas nine species are predators and two pollinators. Our results can be used to plan strategies for the management of harmful pests and beneficial insects associated with the tomato greenhouse crops in this locality. Keywords: Entomofauna, inventory, tomato, greenhouse, arid."
HAL (Le Centre pour la Communication Scientifique Directe), 2022
De nos jours, une agriculture intensive voulant répondre aux besoins d'une population croissante ... more De nos jours, une agriculture intensive voulant répondre aux besoins d'une population croissante est imputable à l'usage de pesticides chimiques de synthèse dont on voudrait cerner les pratiques pour minimiser les risques sanitaires et environnementaux. Ainsi, une enquête visant les pratiques phytosanitaires a été conduite auprès d'agriculteurs au Ziban. Aussi, l'index phytosanitaire algérien de 2007 et 2 bases de données ont été sollicités : PPDB et BPDB. Environ 105 spécialités commerciales ont été rapportées, ces dernières, correspondaient à 60 Substances actives appartenant à environ 28 familles chimiques. Aussi, >1/3 des agriculteurs ne portaient aucun équipement de protection individuelle (EPI). Les restes de cuve et l'eau de rinçage des réservoirs sont déversés à même le sol dans 78% et 95% des cas respectivement. Un référentiel des bonnes pratiques phytosanitaires doit être élaboré et adopté par les agriculteurs pour minimiser les risques sanitaires, et le transfert des pesticides vers les matrices environnementales.
L’évaluation de la résistance naturelle de 62 cultivars de fève propres à la région de Biskra dan... more L’évaluation de la résistance naturelle de 62 cultivars de fève propres à la région de Biskra dans la station des bio-ressources du CRSTRA à El-Outaya (Biskra), a permis de mettre en évidence que le thrips Odontothrips confusus est l’espèce la plus présente sur cette culture et elle a pu s’installer sur 56 cultivars, suivie par Frankliniella occidentalis (53 cultivars) et enfin Melanthrips fuscus (30 cultivars). Le classement des cultivars sur la base des tubérosités formées sur les gousses, a permis de considérer 11 cultivars comme résistants durant un premier essai. Des essais complémentaires au cours d’autres campagnes ont mis en évidence que seuls les cultivars 1 et 38 ont maintenus leur niveau de résistance. D’autres tests effectués sous des conditions semi-contrôlées ont démontré qu’O. confusus est le plus nuisible aux feuilles, alors que, F. occidentalis préfère s’attaqué aux gousses. Sur la base de ces tests, le cultivar 1 en provenance de Seriana est jugé comme le plus inté...
An FNR project entitled “Promotion of Saffron (Crocus sativus L.) cultivation for the profit of a... more An FNR project entitled “Promotion of Saffron (Crocus sativus L.) cultivation for the profit of arid and semi-arid regions’ women” is led by the CRSTRA. The investigations made during 2013 and 2014 in different arid and semi-arid regions of Algeria have permitted to install Saffron (Crocus sativus L.) cultivation in five principle sites: Ain Zaatout, Beni Souik, Branis, Djemorah and Maafa (Algeria). These mountainous oases are characterised especially by lack of water. After analysing the investigation results, saffron corms were distributed to women to be cultivated. The sowing was realised on different dates. The results obtained in the first year of saffron cultivation in mountainous oases of Algeria are promising. The flowering took place in the same year in four sites; it is the case of Ain Zaatout, Beni Souik, Djemorah and Maafa. However, the flowering took place in the second year in the site of Branis. The difference in saffron flowering occurrence can be attributed to the d...
In southern Mediterranean countries, little is known about pesticide inputs under greenhouses, an... more In southern Mediterranean countries, little is known about pesticide inputs under greenhouses, and use is rarely compared with the actual content in the soil. The contamination of agricultural soils by pesticides in the Ziban region (Algeria) was studied by comparing field surveys (farmers, sellers) and direct observations (pesticides packaging) with results of a soil multi-residue analysis using chromatography (liquid and gas) and mass spectrometry detection. Twelve soil samples (six locations at two depths) under tomato greenhouses in six localities (M’Ziraa, Sidi Okba, Ain Naga, El Ghrous, Doucen, and Lioua) were analyzed. The number of active ingredients reported by respondents and observations reached 71 AIs belonging to 34 chemical groups. Despite the wide range of AIs declared to be used by farmers, four other (unexpected) AIs have been identified and quantified by chromatographic analyzes: azinphos-methyl (AZM) (organophosphate), methyl-parathion (organophosphate), and the m...
L’objectif du present travail est de tester experimentalement les capacites de quatre especes veg... more L’objectif du present travail est de tester experimentalement les capacites de quatre especes vegetales Bambusa sp,Cyperus papyrus, Phragmites communis et Nerium oleander, afin d’epurer les eaux usees. Les quatre especes ont ete teste durant trois mois avril, mai et juin. Deux especes parmi les quatre ont presente un arret de developpement : Bambusa.sp et Nerium oleander, probablement du au fait qu’elles n’aient pu supporter les nouvelles conditions de salinite et de pollution des eaux usees utilisees.’apres les resultats obtenus le Phragmites communis montre des avantages en matiere de prelevement de : MES, MO, pH, CE, NH3+ et SO4-2. Tandisque le Cyperus papyrus montre des avantages en matiere de prelevement de la DBO5 et les NO3-. Ainsi les deux especes ont montre une aptitude a epurer les eaux usees sous les conditions climatiques de la region de Biskra. Mots cles : Bambusa sp,Cyperus papyrus, Phragmites communis, Nerium oleander, epurer, eaux usees, Biskra.
In Algeria, little is known about the jasmine moth Palpita vitrealis (Rossi) [synonym Palpita uni... more In Algeria, little is known about the jasmine moth Palpita vitrealis (Rossi) [synonym Palpita unionalis (Hubner)]. It was not previously considered to have significant economic impacts on olives. However, during 2018, in several localities in Biskra province, Algeria, damage caused by larvae feeding on terminal buds, young leaves and shoots attracted the attention of farmers and researchers. In this province, this is the first time that P. vitrealis has been reported as a pest associated with olive trees. A morphological description of this species is given, as well as information on the symptoms and damage that have been observed.
A livestock survey conducted during 2013/2015 as part of a CRSTRA project in 4 villages situated ... more A livestock survey conducted during 2013/2015 as part of a CRSTRA project in 4 villages situated at North east Biskra and south Batna in Algeria. These regions are located at elevation ranging around 250-831m asl, experiencing arid and semi-arid Mediterranean climate. Respondents of 86 families demonstrated that livestock is an integral part of the region?s mixed farming systems. Low livestock numbers per most households at present reflect the self-consumption breeding mode adapted in these regions. Currently, farmers focus on four main livestock types; goat, sheep, chicken and bee keeping in two regions, it is the case of Beni Souik and Branis , while Maafa includes beyond these types, turkey and pigeon whereas Ain Zaatout includes duck and swine beside the previous livestock types. In the same context; goat ranked first in the four regions, goat and sheep secondly then goat and poultry with goat combined to sheep and poultry in third place. Thus; most families use a combination of...
National authorized pesticides used in agriculture are one hot spot issue to human health especia... more National authorized pesticides used in agriculture are one hot spot issue to human health especially for those working in the field. The aim of this study is to evaluate the health problems of authorized pesticides. Risk assessment was evaluated by 1) Toxicological classification of the WHO, and 2) Bio-Pesticides Database (BPDB) and Pesticide Properties Data Base (PPDB). The 2015 Algerian index of phytosanitary products used in agriculture includes 173 active ingredients (IAs) belonging to 83 chemical groups represented by 757 commercial formulations (CF) categorized into: 36% fungicides, 29% insecticides and 22% herbicides. One-third of the AIs are not approved according to EC 91/414 directive. Otherwise, only 3% and 6% of AIs are classified as extremely and highly hazardous respectively. About 47%, 37% and 30% of IAs can cause eye, skin and respiratory tract irritation respectively while approximately 32%, 13%, 10% and 8% of AIs can have/be reproductive and/or developmental effects, neurotoxic effects, cholinesterase inhibitors and endocrine disruptors respectively when only 5% and almost 3% of AIs are carcinogenic and mutagenic, respectively. It is essential to periodically update the list of authorized pesticides at national level in accordance with international legislation and bans. On the other hand, farmers must be aware of the health risks due to each AI to which they are exposed. Also, farmers must wear personal protective equipment (PPE). On the other hand, continuous epidemiological studies aimed primarily at farmers and their families must be carried out and the results of these studies must be accessible to researchers.
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