Ecological and Biological Studies on Certain Aphid Parasitiods
Using aphid Parasitoids to control aphid pests
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Three aphid parasitoids were emerged from the mummies Aphis craccivora namely: Lysiphlebus fabarum, Diaeretialla rapae and Ephedrus sp. Diaeretialla rapae as a parasitoid on A. craccivora is the first record in Egypt. One parasitoid emerged from Brevicoryne brassica, while there were two aphid parasitoids emerged from S. avenae namely: Aphidius sp. and D. rapae. Also two aphid parasitoids were emerged from mummies R. maidis and R. padi namely: D. rapae and Praon sp .This study is considered the first in Egypt which studied the effect of certain weather factors on the population density of the ...
Three aphid parasitoids were emerged from the mummies Aphis craccivora namely: Lysiphlebus fabarum, Diaeretialla rapae and Ephedrus sp. Diaeretialla rapae as a parasitoid on A. craccivora is the first record in Egypt. One parasitoid emerged from Brevicoryne brassica, while there were two aphid parasitoids emerged from S. avenae namely: Aphidius sp. and D. rapae. Also two aphid parasitoids were emerged from mummies R. maidis and R. padi namely: D. rapae and Praon sp .This study is considered the first in Egypt which studied the effect of certain weather factors on the population density of the five aphid parasitoids under field conditions. The obtained results evaluated the role of the parasitoid D. rapae in controlling A. craccivora under field conditions. It could concluded that when this aphid parasitoid used as biological control agents against A. craccivora should be used with low host density that mean in the beginning of aphid infestations.
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