This book describes the pattern of an aphid parasitoid community in field and horticultural crops in Rawalpindi division. Aphids are the serious pest of field and horticultural crops in Pakistan. They not only lower the yield of crops but also serve as the vector of plant viral diseases. In Pakistan, aphids have mostly been restricted by insecticidal applications. Nevertheless, due to undesirable effects of insecticides, total dependence on them can not be made. The parasitoid represents an important element in the aphid environment. During the study ten aphid species and eleven parasitoid species were identified. The mean density of aphid and parasitoid were 63.07 and 8.64 per m2 respectively. It was found that the populations of primary parasitoid of aphids were directly proportional to the population of aphids. Eleven quantitative aphid parasitoid food webs were constructed describing the trophic relationships between the community of aphids and primary parasitoids. All aphid parasitoids food web links were expressed in the same m2 unit.
Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.
This book describes the pattern of an aphid parasitoid community in field and horticultural crops in Rawalpindi division. Aphids are the serious pest of field and horticultural crops in Pakistan. They not only lower the yield of crops but also serve as the vector of plant viral diseases. In Pakistan, aphids have mostly been restricted by insecticidal applications. Nevertheless, due to undesirable effects of insecticides, total dependence on them can not be made. The parasitoid represents an important element in the aphid environment. During the study ten aphid species and eleven parasitoid species were identified. The mean density of aphid and parasitoid were 63.07 and 8.64 per m2 respectively. It was found that the populations of primary parasitoid of aphids were directly proportional to the population of aphids. Eleven quantitative aphid parasitoid food webs were constructed describing the trophic relationships between the community of aphids and primary parasitoids. All aphid parasitoids food web links were expressed in the same m2 unit.
Imtinan Akram Khan obtained his M.phil degree in Entomology from PMAS-Arid Agriculture University, Rawalpindi, Pakistan. Gold medallion in academic session 2008-10. Currently he is rendering his services as the Assistant research officer in Medical Entomology and Disease Vector Control (MEDVC), Health Services Academy (HSA) Islamabad, Pakistan.
Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.
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Kartoniert / Broschiert. Etat : New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Autor/Autorin: Akram Khan ImtinanImtinan Akram Khan obtained his M.phil degree in Entomology from PMAS-Arid Agriculture University, Rawalpindi, Pakistan. Gold medallion in academic session 2008-10. Currently he is rendering his services as the A. N° de réf. du vendeur 4975506
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Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - This book describes the pattern of an aphid parasitoid community in field and horticultural crops in Rawalpindi division. Aphids are the serious pest of field and horticultural crops in Pakistan. They not only lower the yield of crops but also serve as the vector of plant viral diseases. In Pakistan, aphids have mostly been restricted by insecticidal applications. Nevertheless, due to undesirable effects of insecticides, total dependence on them can not be made. The parasitoid represents an important element in the aphid environment. During the study ten aphid species and eleven parasitoid species were identified. The mean density of aphid and parasitoid were 63.07 and 8.64 per m2 respectively. It was found that the populations of primary parasitoid of aphids were directly proportional to the population of aphids. Eleven quantitative aphid parasitoid food webs were constructed describing the trophic relationships between the community of aphids and primary parasitoids. All aphid parasitoids food web links were expressed in the same m2 unit. N° de réf. du vendeur 9783639300574
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Taschenbuch. Etat : Neu. APHID PARASITOID COMMUNITIES | The Pattern of an Aphid-Parasitoid Community in Field and Horticultural Crops in Rawalpindi Division, Pakistan | Imtinan Akram Khan (u. a.) | Taschenbuch | Englisch | VDM Verlag Dr. Müller | EAN 9783639300574 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu. N° de réf. du vendeur 107264153
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