Influence of exposure to common host plant leaf volatile in pupal stage on the olfactory orientation of adults of Liriomyza sativae reared on different hosts
Author of the article:
Author's Workplace：
Key Words：Liriomyza sativae, host, chemical environment, adult orientation behavior
Abstract：Pupae of Liriomayza sativae Blanchard reared on the most favorite host kidney bean, and common host towel gourd, were exposed to tomato leaf volatile extraction (TLE) or pumpkin leaf volatile extraction (PLE) for 72 h, which were diluted by hexane. The orientation ratio (OR) and average responding time (AR) of females emerged from the treated pupae to the treatment compounds and hexane were investigated with Y type olfactometer. The results showed that the OR to the treatment compounds was enhanced after treated by the common host volatile compounds in pupa stage. The olfactory orientation of females was also influenced by the host experience in larva stage. For those females reared on towel gourd, after treated with PLE or TLE, the emerged females preferred to choose treatment compounds rather than hexane. The females reared on the most favorite host kidney bean; after treated with PLE, preferred to choose PLE, rather than hexane; but after treated with TLE, the females still preferred to choose normal hexane instead of TLE.