Abstract:This paper reviews recent progress in the research of insect host marking pheromones. Insect host marking pheromones are chemical compounds produced by females and deposited on or into hosts to signal the presence of conspecific brood. The oviposition behavior of females is mediated by host marking pheromones. Females avoid laying eggs on host resources with host marking pheromones to reduce competition among their offspring. Host marking pheromones sometimes may bring adverse effects on the releaser, such ...