Impact of Parasitoids, Predators and Pathogens on B. brassicae - Ali Mohamed Ali, Ahmed
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Three aphid parasitoids were recorded on cabbage aphid Brevicoryne brassicae. Diaeretilla rapae was the most common parasitoid which emerged from this aphid species. The population density of this aphid species and its parasitoids as well as the percentages of parasitism on the cabbage aphid were studied during the two seasons 2012/013 and 2013/014. The statistical analysis showed that temperature and relative humidity had significant effect with some aphid parasitoids and insignificant with the others .Also, biological aspects of D. rapae were studied on B. brassicae aphid. Some biological…mehr

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Produktbeschreibung
Three aphid parasitoids were recorded on cabbage aphid Brevicoryne brassicae. Diaeretilla rapae was the most common parasitoid which emerged from this aphid species. The population density of this aphid species and its parasitoids as well as the percentages of parasitism on the cabbage aphid were studied during the two seasons 2012/013 and 2013/014. The statistical analysis showed that temperature and relative humidity had significant effect with some aphid parasitoids and insignificant with the others .Also, biological aspects of D. rapae were studied on B. brassicae aphid. Some biological characters of the predator Coccinella undecimpunctata were studied. Isolation and identification of the fungi associated with B. brassicae were carried out. They were: Alternaria alternata (Fries) Keissler, Aspergillus niger Van Tieghem, Cladosporium sp., Paecilomyces lilacinus (Thom) Samson and Penicillium chrysogenum Thom. The laboratory efficiency of entomopathogenic fungi: Beauveria bassiana and Isaria fumosorosea on B. brassicae was studied.
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Autorenporträt
Main Author: Ahmed Amin Ahmed Saleh Professor, Plant Protection Research Institute, Shared in 60 training cycle, Projects and conference.Publishing 39 papers and seven books in biological control field, member in many Journals.Sub Author: Ahmed Ali Mohamed Ali, B.Sc. Botany and Chemistry, Master of Botany, Faculty of Science, Zigzag University.