Author： ITTYCHERIAH P. I. MARKS E. P. QURAISHI M. S.
Publisher： Entomological Society of America
ISSN： 1938-2901
Source： Annals of the Entomological Society of America, Vol.67, Iss.4, 1974-07, pp. : 595-600
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
When female Culex tarsalis Coquillett were treated topically with -ecdysone, 22-isoecdysone, or CRD9499 (JH analog) before a blood meal, eggs were laid in normal rafts, and 90% or more of the eggs laid were viable. If similar treatments were carried out after a blood meal, eggs laid by females treated with CRD9499 or -ecdysone were effectively infertile. Treated females were given a 2nd blood meal after completion of the first gonotrophic cycle. They laid viable eggs in normal rafts. When the ovaries from newly emerged adults were cultured with brains and associated endocrine glands or treated with the juvenile hormone analog, ZR-515, or with Cecropia juvenile hormone, they showed deposition of yolk-like material over long periods. But after treatment with -ecdysone, the ovaries shrank, became transparent, and failed to deposit yolk-like material.
Related content
Access to resources
Recommend
