The toxicity of phosphine resistant strains of Rhyzopertha dominica and Sitophilus oryzae to three protectants (malathion,pirimiphos methal and deltamethrin) was determined.

• 本文报道了两种主要储粮害虫谷蠹和米象的抗磷化氢品系对马拉硫磷、虫螨磷和溴氰菊酯 3种储粮保护剂的毒力测定。