PESTS ASSOCIATED WITH STORED WHEAT AT SHARKIA GOVERNORATE

Document Type : Original Article

Authors

1 Zoology Department, Faculty of Science, Zagazyg University, Egypt

2 Zoology Department, Faculty of Science, Zagazyg University, Egypt .

Abstract

The present work was surveyed pests found in wheat grain and wheat flour of Sharkia   Governorate in four districts namely, (Bilbeis, Minya El Qamh, Alsalhea and Zagazig) during two years 2016-2017. The Sitophilus granaries was abundant in all months of studding, the rate of its infestation reach 28.5%. .Then, Sitophilus, zeamais, Sitophilus oryza 16.7%,and 13.9%, .The infestation rate  decrease in   Tribolium castanem, Sitotroga cerealell  11.5% and 9.8%, but Tyrophgus putresentiae and Dermatophagoids pteronyssinus available in few numbers 6.7% and 4.1%,. All pests increase in summer through July and august but when Spikes (Sanabil) was stored in a pottery pot, it did not get any pests during the study period.
The Tribolium castaneum  was the most common infect the store wheat flour  where the infestation reached 35.4% in July and August and decrease in December and  January,  then  followed by the Lasioderma serrcon and  Sitophilus granaries were  infested reach about  22.4% and  15.The lowest incidence of infection emerged from Ephestia cauella and Corcya cephalonica were 3.5 ,1.9% consecutive. All insects' infestation were increased in spring and summer. The largest insects infestation are showing in Bilbes , Min El Qamh, and the lowest one in  Zagazig.
Conclusively Stored grain have losses in both quantity and quality .Losses occur when the grain is attacked by insects like weevils, beetles, moths and mites  , this study dealt with field survey  of the stored grain and flour  wheat, to know the types of  these pests  and   their biology and  seasonal distribution in Sharkia Governorate .
       
 

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