関東東山病害虫研究会報
Online ISSN : 1884-2879
Print ISSN : 1347-1899
ISSN-L : 1347-1899
虫害の部
茶園のチャノミドリヒメヨコバイに対するネオニコチノイド系殺虫剤の防除効果の低下
小澤 朗人小杉 由紀夫片井 祐介吉崎 真紀
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ジャーナル フリー

2009 年 2009 巻 56 号 p. 107-109

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Imidacloprid and related neonicotinoid insecticides have been used since 1995 in tea fields in Shizuoka Prefecture against tea green leafhopper, Empoasca onukii Matsuda. Field control tests on E. onukii using imidacloprid or related neonicotinoids have been conducted in our research center every year. These results showed injury prevention rate on new shoots were over 97% until 2002, although the results showed rates less than 50% since 2004. The explanation for this is that the pesticide resistance to neonicotinoids of E. onukii populations in tea fields increased since around 2003.

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© 2009 関東東山病害虫研究会
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