Effects of the Insect Growth Regulator Hydroprene on Diapausing Microctonus aethiopoides 1 a Parasite of the Alfalfa Weevil 234
- 1 April 1980
- journal article
- research article
- Published by Oxford University Press (OUP) in Environmental Entomology
- Vol. 9 (2) , 262-264
- https://doi.org/10.1093/ee/9.2.262
Abstract
Hydroprene terminated Microctonus aethiopoides Loan diapause when topically applied to host Hypera postica (Gyllenhal). Concentrations of 1, 5, 10, or 50 μg/host terminated diapause in at least 97% of the parasites. Parasite survival and morphological condition were influenced by hydroprene concentration. One μg had no adverse effects other than 8% deformed adults and had no carry-over effect on F 1 generation. Five μg did not affect pupation or adult eclosion but caused 31% deformed adults and some deformed adults in F 1 generation. Ten μg did not affect pupation, reduced adult eclosion, caused 82% deformed adults, and had a carry-over influence on the Fl generation where there were fewer parasitized weevils, decreases in adult eclosion, and increases in number of deformed F 1M. aethiopoides adults. Fifty μg decreased successful pupation and caused 100% pupal mortality.This publication has 3 references indexed in Scilit:
- Gonadal Development of Laboratory-reared Male Alfalfa Weevils, Hypera postica1,2,3Annals of the Entomological Society of America, 1978
- Hormonal Termination of Diapause in the Alfalfa WeevilScience, 1966
- Status of the Alfalfa Weevil Biological Control Program in the Eastern United StatesJournal of Economic Entomology, 1963