スクミリンゴガイ(Pomacea canaliculata)の摂食活動に対するカルタップおよびベンスルタップの阻害作用

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タイトル別名
  • Feeding inhibitory efficiency of cartap and bensultap against the apple snail, Pomacea canaliculata.
  • スクミリンゴガイ（Ｐｏｍａｃｅａ　ｃａｎａｌｉｃｕｌａ）の摂食活動に対するカルタップおよびベンスルタップの阻害作用
  • スクミリンゴガイ Pomacea canaliculata ノ セッショク カ

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The LC50 values of cartap and bensultap against the young snail, Pomacea canaliculata were 2.0ppm and >10ppm at 48h, respectively and the feeding of rice plant by the young snails was completely inhibited at a dose of 0.31ppm for both insecticides. The LC50 values of cartap and bensultap against the adult snail were 1.9ppm and 10ppm at 48h respectively and feeding of rice plant by the adult snails was completely inhibited at a dose of 0.31ppm for cartap and 0.63ppm for bensultap. The feeding inhibitory efficiency of both insecticides was very high. In the submerged application of cartap and bensultap granules (4kg/10 a), feeding by the young snails was completely inhibited during 15 days after treatment. In the case of nursery box-treatment with cartap and bensultap granules (60g or 100g/box), feeding by the adult snails was almost completely inhibited during 21 days after transplanting. These results suggest that cartap and bensultap are able to protect the rice plant from feeding by the snails for about 3 weeks in paddy field.

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