Effectiveness of Baits Incorporated with Carbamates or Pyrethroids Against the Melon Fly

Abstract

Studies were conducted to evaluate the mortality of melon fly (Bactrocera cucurbitae Coquillett) on adding carbamates or pyrethroids to baits in five ratios. Higher ratios of insecticides resulted in increased melon fly mortality. In the non-choice test, the mortality resulting from addition of 40% methomyl WP to baits by a ratios of 1:1000, 1:500, 1:200, or 1:100 and 48.34% carbosulfan EC to baits by a ratios of 1:200 or 1:100 were significantly higher than other carbamates and pyrethroids. In the choice test, baits incorporated with 40% methomyl WP in 100:1 or 48.34% carbosulfan EC in the same ratio could also make the mortality higher over 80% for melon fly. In the residual effects, 40% methomyl WP mixing with baits in 1:100 after seven days could make the mortality higher over 70%. It was concluded that the 40% methomyl WP or 48.34% carbosulfan EC adding in baits could manage the population of melon fly effectively. This technique could be applied in the integrated pest management of melon fly.