Rearing larvae of the oriental fruit fly, Dacus dorsalis Hendel on media containing banana or rice bran
1983
Rattana Poramacom (Office of Atomic Energy for Peace, Bangkok (Thailand). Biological Science Div.) | Mitchell, S.
Materials available in Thailand were substituted for some of those in the standard medium currently used in rearing larvae of Dacus dorsalis Hendel at the Tropical Fruit and Vegetable Research Laboratory, Honolulu, Hawaii. The purpose of this study is to decrease rearing costs through medium modification in Thailand. Larvae were reared in different media: three media containing banana and the other three containing rice bran, as the main ingredient. Wheat germ flakes and torula yeast were added to at : (1) 7.2 and 3.6 %, (2) 7.2 and 7.2 %, and (3) 10.8 and 7.2 % by weight respectively. The standard medium comprised the seventh medium. Higher mean pupal recovery, higher mean pupal weight, and higher mean percentage of adult eclosion were obtained from media containing banana compared to media without banana. Media containing banana, (3) and (1), resulted in a significantly (P = 0.05) higher mean pupal recovery, 57.49 and 56.88 % respectively. Media containing banana, (2) and (3), resulted in the highest mean pupal weight, 12 and 11.68 mg. respectively. Media containing banana produced pupae with highest percentage of adult eclosion. No significant difference was observed in fecundity and fertility of flies reared in all media. Torula yeast and/or wheat germ flakes did not increase the number or weight of papae. This study showed that media containing banana was the most suitable media for rearing D. dorsalis larvae. All three media containing rice bran were unsuitable for rearing this insect.
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This bibliographic record has been provided by Thai National AGRIS Centre, Kasetsart University
