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سيف محمد تقي عيسى علي - Saif KHATTAWI
MSc - assistant lecturer
College of Agricultural Engineering Sciences , Department of Plant Protection
[email protected]
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مقاومة حيوية
كلية علوم الهندسة الزراعية
وقاية النبات
Stage 4
Teaching

قسم وقاية النبات - مقاومة حيوية

Publication Date
Wed Jun 15 2022
Journal Name
International Journal Of Agriculture Environment And Food Sciences
Functional and numerical response of Hippodamia variegata (Goeze) (Coleoptera: Coccinellidae) on Macrosiphum rosae (L.) (Hemiptera: Aphididae)

In this study, functional and numerical response tests, which are important components in the selection of biological control agent, were carried out. In functional response trials, the amount of food consumed, attack rate (a) and handling time (Th) were calculated for each developmental period, depending on the number of preys given after 24 hours. The obtained results were evaluated with the Holling. In numerical response experiments, the development of the predator insect was examined depending on the number of preys given in certain numbers (5, 10, 20, 40 and 80) and the data were recorded. This phase of the trials continued until the individuals died. At this stage of the trials, the reproductive response of the p

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