5 Veterinary Biochemistry- ICAR JRF/SRF 2024 MCQ (Single Correct) Chlorpyriphos methyl is effective against stored product insects except A Rhizopertha dominica Correct Incorrect B Tribolium castaneum Correct Incorrect C Caryedon serratus Correct Incorrect D Oryzaephilus surinamensis Correct Incorrect Check Answer EXPLANATION Agricultural Entomology, Nematology & Crop Protection Rhizopertha dominica (lesser grain borer): Possesses documented widespread physiological tolerance and cross-resistance against organophosphate grain protectants like chlorpyrifos-methyl, requiring synthetic pyrethroids or fumigation. (Correct answer)Tribolium castaneum (red flour beetle): Highly susceptible to surface and grain treatment using chlorpyrifos-methyl at standard recommended doses.Caryedon serratus (groundnut bruchid): A major storage pest of groundnut pods, effectively controlled by chlorpyrifos-methyl.Oryzaephilus surinamensis (sawtoothed grain beetle): A secondary stored grain pest that is effectively controlled by organophosphate protectants. Explanation not matching this question? क्या व्याख्या इस प्रश्न से मेल नहीं खा रही? Report Prev Next