scholarly journals EFFECT OF SOME DIFFERENT COMPOUNDS ON AMERICAN BOLLWORM, Helicoverpa armigera (Hubner) IN COTTON FIELDS

2013 ◽  
Vol 4 (2) ◽  
pp. 207-214
Author(s):  
A. El-Sayed ◽  
A. Amer ◽  
A. Zaki
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