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Titles
English : Interrelations between the populations of sucking pests and their associated predators as affected by early-season insecticide treatments in cotton fields
Arabic : تأثير المعاملة بالمبيدات فى بداية الموسم على العلاقة بين أعداد الحشرات الثاقبة الماصة والمفترسات فى حقول القطن
Abstract Field experiments were conducted during 2001 and 2002 cotton seasons at Kafr El-Sheikh, Egypt. The effects of early-season insecticide treatments on the interrelations between the early and late-season populations of certain sucking pests and their associated predators were studied. The data revealed that the correlations between the early-season populations of the sucking pests and their associated predators were positive, while no such correlations existed between the late-season populations of the pests and predators. The interrelations were negative between the early-season populations of the predators and the late-season populations of the sucking pests. The data also showed that the early-season insecticide treatments reduced the early-season populations of the sucking pests and predators. The effects of the early-season insecticide treatments were extended to the late-season populations of the predators. The increase in the late-season populations of the pests may be due to the decrease in the early-season populations of the predators in the treated fields.
Publication year 2003
Pages 464-474
Organization Name
    Plant Protection Research Institute (PPRI)
City طنطا
serial title مجلة البحوث الزراعية بجامعة طنطا
Author(s) from ARC
Agris Categories Protection of plants - General aspects
AGROVOC
TERMS
Sucking insects.
Publication Type Journal

 
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