PubMed · 2026-05-12
Scientists discovered that a hormone called corazonin, produced naturally inside female brown planthoppers, controls how these rice-destroying insects behave after mating — reducing their interest in mating again and boosting egg-laying. This internal signaling pathway could become a new target for pest control.
The insect's own hormone corazonin modulates post-mating behavioral changes in female brown planthoppers, including reduced receptivity to re-mating.
Corazonin signaling also increases oviposition (egg-laying) after mating, directly driving population growth.
This endogenous (internally produced) signaling pathway acts alongside male seminal factors, revealing a more complex dual-control system than previously understood.
