Effects of pyriproxyfen on ovarian development and fecundity of Rhagoletis pomonella flies
1995
Duan, Jian Jun | Prokopy, Ronald J. | Yin, Chin-Ming | Bergweiler, Chris | Oouchi, H.
Three-day old female apple maggot flies, Rhagoletis pomonella (Walsh), were topically exposed to different doses (0.1, 1, 10, and 100 μg per fly) of a juvenile hormone mimic, pyriproxyfen, in the laboratory. Pyriproxyfen had little lethal effect on females except at the extremely high dose of 100 μg. It also had no significant effect on egg viability of treated females. A non-lethal dose of 1 μg per fly did, however, enhance significantly the fecundity (egg production) as well as the ovarian development (number of eggs in ovaries and length of egg folicles) of treated flies. We conclude that pyriproxyfen could be a useful aid in exploring endocrine regulation of feeding and reproductive physiology behavior in R. pomonella, about which current knowledge is scant.
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