Effects of Pesticides on Adult Ladybird Beetle <i>Serangium japonicum</i> (Coleoptera: Coccinellidae), a Potential Predator of the Tea Spiny Whitefly <i>Aleurocanthus camelliae</i> (Hemiptera: Aleyrodidae)

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  • Ozawa Akihito
    Tea Research Center/Shizuoka Research Institute of Agriculture and Forestry
  • Uchiyama Toru
    Tea Research Center/Shizuoka Research Institute of Agriculture and Forestry

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  • チャトゲコナジラミ（カメムシ目：コナジラミ科）の捕食性天敵クロツヤテントウ（コウチュウ目：テントウムシ科）の成虫に対する各種農薬の影響
  • チャトゲコナジラミ(カメムシモク:コナジラミカ)ノ ホショクセイ テンテキ クロツヤテントウ(コウチュウモク:テントウムシカ)ノ セイチュウ ニ タイスル カクシュ ノウヤク ノ エイキョウ

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Abstract

We tested the toxicity of 34 pesticides on the adult ladybird beetle Serangium japonicum Chapin, a predator of the tea spiny whitefly Aleurocanthus camelliae Kanmiya and Kasai in tea fields by contact method using tea leaves. Organophosphate insecticides—acephate and methidathion and neonicotinoid insecticides—clothianidin, methomyl, bifenthrin, cyantraniliprole, spinetoram, and cartap were moderately or seriously harmful. Silafluofen, chlorantraniliprole, and spinosad were slightly harmful. Methoxyfenozide, lufenuron, abamectin, emamectin benzoate, milbemectin, flubendiamide, ethiprole, chlorfenapyr, pyrifluquinazon, diafenthiuron, spiromesifen, tolfenpyrad, fenpyroximate·buprofezin mixer, etoxazole·pyrimidifen mixer, machine oil, and some fungicides were harmless.

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