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Impact of Temperature on Efficacy of Diatomaceous Earth (Silicosec) against Rhyzopertha dominica and Tribolium castaneum


The International Journal of Global Sciences (TIJOGS)

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Muhammad Umair Gulzar1*, Ch. M. Shahid Hanif1, Muhammad Waheed Shah1, Mazhar Abbas1, Muhammad Usman1, Usman Sohail1 and Muhammad Ishtiaq Sarwar 
Corresponding author: umairgulzar333@gmail.com
Submitted Accepted Published
Aug 18,2018 Apr 12,2018 Dec 28,2018

2018 / Vol: 1 / Issue: 1


Abstract


Diatomaceous Earth and grain moisture are the trending factors for stored grain insect pest’s management that influence the mortality especially of Rhyzopertha dominica and Tribolium castaneum. For all tested insects treatments, higher temperature level in grains enhance mortality of stored grain insect pests. Every DE product has its own efficacy and this experiment contains use of Silicosec. Effect of temperature on the efficacy of DE product as temperature 25oC mortality of Tribolium castaneum is (85%) and at temperature 30oC   mortality is (97%) and at the same time   mortality  of  Rhyzopertha dominica at  temperature  25oC is   (89.30%) and  at  temperature   30oC mortality (97.65).So at high temperature efficacy of DE product is high and low at low temperature. Doses of 200 ppm and 300 ppm gives more mortality results of both. The high doses can give high rate of mortality.

Keywords: Diatomaceous earth, SilicoSec, R. dominica, T. castaneum, Mortality, Temperature, Efficacy


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