CARIBBEAN FRUIT-FLY, ANASTREPHA-SUSPENSA (LOEW), ATTRACTION TO HOST FRUIT AND HOST KAIROMONES

Extracts of 22 fruits were tested for their attractancy to Anastrepha suspensa (Loew), the Caribbean fruit fly. Box-orange, calamondin, cara mbola, cattley guava, loquat, and Surinam-cherry were about equal in a ttractiveness to males and females. Nine synthetic chemicals, includin g four found in box-orange ripe seed, were attractive to females. Five synthetic chemicals, including two in box-orange ripe seed, were attr active to males. Farnesol, alpha-phellandrene, and 3-carene were highe st in attractiveness to both males and females. Females were more attr acted than males to 12 synthetic chemicals. These data suggest that ho st chemicals serve as attractants and that female and male specific at tractants and traps could be developed from host kairomone data. These data also suggest that the volatilization of chemicals from water may play an important role in kairomone biology.