Arrival Rates of the Oriental Fruit Fly, Dacus dorsalis Hendel (Diptera: Tephritidae), to Methyl Eugenol

Abstract

Rates at which oriental fruit fly, Dacus dorsalis Hendel, males arrived at the site of the lure, methyl eugenol, were determined in the field. Arrival rate curves varied and were classified by shape into three types: Type A, a rapid initial arrival followed by a rapid decline with time; Type B, a delayed initial arrival followed by a rapid increase; and Type C, a relatively steady arrival but in low numbers. The implications of these three curves with respect to the distribution and abundance of D.dorsalis males are discussed.