一般農藥對兩種紅蟎重要天敵毒性之初步試驗
Other Title
Preliminary Study on Toxicity of 23 Pesticides to Natural Enemies of Red Spider Mites
Journal
中華農學會報
Journal Issue
新92
Pages
81-86
Date Issued
1975-12
Author(s)
羅幹成
趙若素
PAUL KANG-CHEN LO
SUSAN ROU-SU CHAO
Abstract
本試驗以羅氏瓢蟲(Stethorus loi)及長毛(Amblyseius longispinosus)作為測定23種農藥毒性之材料。試驗結果發現lannate及carbaryl 兩種氨基甲酸鹽類對此二種紅蟍天敵毒性最為強烈；一般有機磷劑除DDVP及metasystox i 之毒性較低外，其餘均具強烈之毒殺作用。在所用之殺劑中，chlorobenzilate, kelthane 及plictran對天敵毒性較強，其餘各劑均較安全。然而在網室以smite, kelthane, tedion 及chlorobenzilate等4種殺劑試驗其對長毛之影響，結果顯示長毛對偽二點紅蟍之抑制能力，均較4種殺劑為優。
Two natural enemies of red spider mites, Stethorus loi (Coccinellidae: Coleoptera) and Amblyseius longispinosus (Phytoseiidae: Acarina) were the materials for count the toxicity of 23 pesticides. The lannate and carbaryl are serioulsy toxic to both natural enemies. Almost all of the organophosphates are very toxic (except the DDVP and Matasystox i) to them. Among the acaricides: chlorobenzilate, kelthane and plictran were appreciably more toxic to them, but the remaining compounds showed more safe to the natural enemies. On the other hand, four acaricides, e.i. smite, kelthane, tedion and chlorobenzilate were treated in screened house on the bean plants, which had been transfered false two-spotted spider mite, Tetranychus truncatus, and the predacious mite, Amblyseius longispinosus. The result showed that the efficiency of this predator seemed better than the four acaricides to control the spider mite.
Subjects
天敵
毒性
農藥
Publisher
中華農學會
Type
journal article