The diversity of chili pepper volatile compounds and its relationship to insect pests

Abstract Selection activities in plant breeding can be carried out only if there is variation the plant’s genetic materials. Plant volatile compounds are media for interaction between plants and insects, making them potential to used as a selection parameter resistant programs against insect pests. This study aimed determine diversity of chili pepper ( Capsicum spp.) explain its relationship main pests pepper. The research was at IVEGRI’s station Lembang, West Java, Indonesia from March September 2020. treatment involved 34 varieties. observation parameters included profiles measured using GC-MS incidence (thrips, worms, fruit fly). results showed that 87 detected, eight them, i.e. 3,6-Nonadien-1-ol, (E, Z)-,β-Ocimene, trans-β-Ocimene, 3-Allylcyclohexene, 2,4,6-Octatriene, 3,4-dimethyl-, Neo-allo-ocimene, 1-Octanol 2-Methylanisole high level among varieties tested. simple correlation test positive negative correlations pest incidence, with range -6.80 0.87. these volatiles will subject further discussion.