Systemic nicotinoid toxicity against the predatory mirid pilophorus typicus: Residual side effect and evidence for plant sucking

Kengo Nakahira, Ryoya Kashitani, Masafumi Tomoda, Rika Kodama, I. T.O. Katsura, Satoshi Yamanaka, Mitsutoshi Momoshita, Ryo Arakawa, Masami Takagi

Research output: Contribution to journalArticlepeer-review

Abstract

The predatory mirid Pilophorus typicus (Heteroptera: Miridae) is a potential biological control agent against Bemisia tabaci (Hemiptera: Aleyrodidae), but the sucking for host plant is unknown. To investigate collaboration use of P. typicus and nicotinoid granules and to confirm the sucking for pepper plant, residual harmful toxicity of 4 nicotinoids: acetamiprid; imidacloprid; nitempyram; and thiamethoxam on P typicus adult were investigated at 7, 14 21, 28 and 35 d after treatment of the nicotinoid granules. The systemic toxicity of these nicotinoids was found to be moderately or seriously harmful. The residual toxicity was persistent for 35 d after application at the growing points of the pepper plant. The mortality of P. typicus due to the 4 nicotinoids was significantly higher than that due to the control treatment, which indicated that P. typicus sucked the active ingredient of the nicotinoid granules along the nutrition and/or water from the growing point of pepper plant. For this reason, P. typicus will be one of zoophytophagous mirids.

Original languageEnglish
Pages (from-to)53-55
Number of pages3
JournalJournal of the Faculty of Agriculture, Kyushu University
Volume56
Issue number1
Publication statusPublished - Feb 2011

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Agronomy and Crop Science

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