作者: Anum Feroz , Farah Rauf Shakoori , Tanzeela Riaz , Abdul Rauf Shakoori
DOI: 10.1016/J.JSPR.2020.101673
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摘要: Abstract The current investigation was conducted to estimate the resistance level against deltamethrin in fourth and sixth instar larvae of Trogoderma granarium collected from wheat storage warehouses Dera Ghazi Khan (DGK), Okara (OKR) Gujranwala (GUW). Results showed that strains moderately resistant compared with same developmental stages insecticide susceptible laboratory strain (LAB-S). Efficacies bifenthrin, chlorpyrifos their various combinations were analyzed different pest populations minimize development deltamethrin. LC50s bifenthrin all four recorded at low concentrations LC50 values LAB-S, DGK, OKR GUW 359.32, 416.58, 524.01 598.91 ppm, respectively, while these 204.30, 262.98, 301.89 355.22 ppm those populations, respectively. Chlorpyrifos found be most effective 189.33, 305.37, 376.30 459.15 ppm whereas for 98.24, 129.61, 163.43 230.74 ppm, Various viz., 1:1, 2:1, 3:1, 1:2 1:3 also tested. Based on relative toxic unit, combination observed as among combinations. each high concentration larvae. need considered present stored grain insect control program Punjab1.