Area-Wide Suppression of the Mediterranean Fruit Fly, Ceratitis capitata, and the Oriental Fruit Fly, Bactrocera dorsalis, in Kamuela, Hawaii

The United States Department of Agriculture's Agricultural Research Service initiated an area-wide fruit fly management program in Hawaii in 2000. The first demonstration site was established in Kamuela, Hawaii, USA. This paper documents suppression of the Mediterranean fruit fly, Ceratitis capitata (Wiedemann), and the oriental fruit fly, Bactrocera dorsalis (Hendel) (Diptera: Tephritidae), in a 40 km2 area containing urban, rural and agricultural zones during a 6 year period. The suppression techniques included sanitation, GF-120 NF Naturalyte Fruit Fly Bait sprays, male annihilation, Biolure® traps, and parasitoids against C. capitata and B. dorsalis. In addition, small numbers of sterile males were released against B. dorsalis. Substantial reductions in fruit infestation levels were achieved for both species (90.7 and 60.7% for C. capitata and B. dorsalis, respectively) throughout the treatment period. Fruit fly captures in the 40 km2 treatment area were significantly lower during the 6 year period than those recorded in three non-treated areas. The strategy of combining suppression techniques in an area-wide approach is discussed

Rearing Fopius arisanus (Sonan) (Hymenoptera: Braconidae) in Mediterranean fruit fly (Diptera: Tephritidae).

In Hawaii, the egg-larval parasitoid Fopius (=Biosteres) arisanus (Sonan)(= Opius oophilus Fullaway) (Hymenotera: Braconidae) is the most effective parasitoid of its preferred host the oriental fruit fly, Bactrocera dorsalis Hendel (Diptera: Tephritidae). Other Hymenopterous parasitoid species introduced into Hawaii still exist but vary considerably in their distribution and effectiveness as biological control agents. Based on field observations of F. arisanus parasitizing medfly in coffee and oriental fruit fly in guava, we postulated that a strain of F. arisanus could be selected in the laboratory to be reared exclusively on medfly. We report the results of these studies