Controlling the Chocolate Banded Snail, Eobania vermiculata by Using some Insecticides at Minia Governrate, Egypt

Abstract

The initial mortality of the tested insecticides showed significant superiority of methomyl, abamectin, and thiamethoxam in their effect against Eobania vermiculata wich causing 100% snail mortality and 100% reduction in food consumed by this snail. Acetamiprid SP, azadirachtin and imidacloprid recorded 95.74, 87.23, and 87.23% reduction in food consumption and acute mortality 90, 85, and 80%, respectively. While as acetamiprid SL, amitraz and the mixture of pymetrozine 50% + cyantraniliprole‎‎10% gave the least effect in their initial effect and food consumption (70, 65 and 60 % initial mortality % and.74.76, 55.3 and 55.31% in food consumption respectively). The residual effect of the tested insecticides on, E. vermiculata after three days from the field treatment showed also the superiority of methomyl, abamectin, thiamethoxam, and acetamiprid SP in their effects against E. vermiculata causing mortality of 90, 90, 85, and 85 % and highly reduction % in food consumption as compared with control treatment gave ‎96.07, 96.07, 92.15 and 96.07 reduction %, ‎respectively followed by azadirachtin, imidacloprid and acetamiprid SL that recorded mortality 75, 70 and 65 %, respectively while amitraz and the mixture of (pymetrozine50%+ cyantraniliprole 10% recorded 50 and 45 % mortality. The residual effect after seven days was in descending order as follows 85, 85, 80, 75, 70, 65, 55, 40, and 37 % with methomyl, abamectin, acetamiprid SP, thiamethoxam, azadirachtin, imidacloprid, acetamiprid SL, amitraz and the mixture of pymetrozine50%+ cyantraniliprole 10%), respectively. From these results, it could be concluded that these insecticides can give excellent protection against the chocolate banded snail, E. vermiculata.