Ovicidal activity of juvenile hormone mimics in the bean bug, Riptortus pedestris

Shouya Naruse, Mayuko Ogino, Takao Nakagawa, Yoko Yasuno, Akiya Jouraku, Takahiro Shiotsuki, Tetsuro Shinada, Ken Miura, Chieka Minakuchi

Research output: Contribution to journalArticlepeer-review

Abstract

Insect juvenile hormone (JH) mimics (JHMs) are known to have ovicidal effects if applied to adult females or eggs. Here, we examined the effects of exogenous JHMs on embryonic development of the bean bug, Riptortus pedestris. The expression profiles of JH early response genes and JH biosynthetic enzymes indicated that JH titer was low for the first 3 days of the egg stage and increased thereafter. Application of JH III skipped bisepoxide (JHSB3) or JHM on Day 0 eggs when JH titer was low caused reduced hatchability, and the embryos mainly arrested in midor late embryonic stage. Application of JHMs on Day 5 eggs also resulted in an arrest, but this was less effective compared with Day 0 treatment. Interestingly, ovicidal activity of synthetic JHMs was much lower than that of JHSB3. This study will contribute to developing novel insecticides that are selective among insect species.

Original languageEnglish
Pages (from-to)60-67
Number of pages8
JournalJournal of Pesticide Science
Volume46
Issue number1
DOIs
Publication statusPublished - 2021
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Insect Science
  • Health, Toxicology and Mutagenesis

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