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Stages occurrence, natality rate and dispersal ability of schizaphis graminum (rond.) on wheat plants at giza governorate) [electronic resource].

By:

Salem, H.A

Language: English Summary language: Arabic Description: p.307-318Other title:

مدى تواجد أطوار المن ، معدل الولادة والقدرة على الانتشار فى من الغلال S.graminum على نباتات القمح بمحافظة الجيزة [Added title page title]

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Bulletin of Faculty of Agriculture. Cairo University, 2003 v. 54 (2) [electronic resource].

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In: The Bulletin Faculty of Agriculture, Cairo University 2003.v.54(2)Summary: The numerical occurrence of different adult morphs and stages of the greenbug Schizaphis (=Toxcptera) graminum (Rond.), dispersalability and natality rate were studied on wheat plants at Embaba district throughout winter 1999/2000 and 2000/2001seasons. Infestation by adult females (especially winged females) was initiated on wheat as soon as seedling emergence. Adult females attained the highest numbers during a period extended from the 2nd week of February to the end of March in both seasons. The counts of females in the first season were 2.53 times higher than in the second one.

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The numerical occurrence of different adult morphs and stages of the greenbug Schizaphis (=Toxcptera) graminum (Rond.), dispersalability and natality rate were studied on wheat plants at Embaba district throughout winter 1999/2000 and 2000/2001seasons. Infestation by adult females (especially winged females) was initiated on wheat as soon as seedling emergence. Adult females attained the highest numbers during a period extended from the 2nd week of February to the end of March in both seasons. The counts of females in the first season were 2.53 times higher than in the second one.

Summary in Arabic.

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