Side effects of vegetable pesticides on a predatory mirid bug, Pilophorus typicus Distant (Heteroptera: Miridae)

Kengo Nakahira; Ryoya Kashitani; Masafumi Tomoda; Rika Kodama; Katsura Ito; Satoshi Yamanaka; Mitsutoshi Momoshita; Ryo Arakawa

doi:10.1303/aez.2010.239

Regular Papers

Side effects of vegetable pesticides on a predatory mirid bug, Pilophorus typicus Distant (Heteroptera: Miridae)

Kengo Nakahira, Ryoya Kashitani, Masafumi Tomoda, Rika Kodama, Katsura Ito, Satoshi Yamanaka, Mitsutoshi Momoshita, Ryo Arakawa

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Keywords: Pilophorus typicus, integrated pest management, biological control, insect growth regulator, toxicity

JOURNAL FREE ACCESS

2010 Volume 45 Issue 2 Pages 239-243

DOI https://doi.org/10.1303/aez.2010.239

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Abstract

The harmful side effects of 11 pesticides, 5 acaricides, and 10 fungicides on nymphs and adults of the predatory mirid bug Pilophorus typicus Distant (Heteroptera: Miridae) were determined by dipping them into solutions of each chemical. Two insect growth regulators (IGRs), buprofezin and cyromazine, were not harmful to nymphal survival of P. typicus on the fifth day. Flufenoxuron, lufenuron, and novaluron (also IGRs) were seriously harmful to nymphal survival of P. typicus on the fifth day. IGRs that were deleterious to nymphal survival were probably harmful because they regulated molting. Three insecticides, buprofezin, cyromazine, and pyridalyl; one acaricide, bifenazate; and four fungicides, boscalid, captan, iprodione, and triadimefon, were found to be inert pesticides for nymphs and adults of P. typicus.

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