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العنوان
The Influence of against Cotton Bollworms in relation to their effect on fiber quality/
الناشر
:Helwan Univ.F.O.Cotton Sclences(pesticides)
المؤلف
Tayeb,El-Sayed Hassan M.
هيئة الاعداد
مشرف / محمود محمد
باحث / السيد حسن
مشرف / محمود محمد
مشرف / محمود محمد
الموضوع
Fiber Quality Cotton Bollworms Cotton Bollworms Pesticides
تاريخ النشر
, 1982 .
عدد الصفحات
?
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
علوم المواد
تاريخ الإجازة
1/1/1982
مكان الإجازة
جامعة الاسكندريه - كلية الزراعة ساباباشا - pesticides
الفهرس
Only 14 pages are availabe for public view

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Abstract

The pink ”bollworm does most of its damage to the green :, although buds and flower are also eaten and sometimes ovary, so that shedding invariably results. The effects shedii.ag are raely serious, because the larval population ply in the season is insufficient to affect the course of
production. The main weight of the larval attack fin Is on the developing seeds in the bolls, causing arrest,
|*f growth and rotting and sometimes premature and partial
I
jfholl opening. The affected seed-cotton gave discoloured lint
L, together with seed fragments and crushed larvae, cannot fieeadiiy be separated from good seed cotton, resulting in a Fgaaerai loss of quality.
Although many studies were carried out using chemicals i-Jtar control cotton bollworms, rather limited work was condu-fcted regarding the effect of the insecticides on fiber quality.