Comparative Mating Competitiveness of Metepa-Sterilized and Normal Pink Bollworm Males in Laboratory and Field Cages1
- 1 October 1965
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Economic Entomology
- Vol. 58 (5) , 927-929
- https://doi.org/10.1093/jee/58.5.927
Abstract
Male pink bollworms, Pectinophora gossypiella (Saunders), sterilized (S) with the established optimum dosage of 15 μg of technical metepa, were fully competitive with normal (N) males in mating with females at all ratios (S ♂ : N ♀) tested. With a constant male ratio (4 S : 1 N) and varied dosages, males sterilized with 15 μg technical metepa per male were fully competitive with normal males and exhibited some competitiveness when sterilized with 50 μg, the highest dosage investigated. In field-cage experiments with a single release at a 9:1 (S:N) male ratio, males sterilized with 30 μg each did not reduce the population when compared with that in the untreated checks, but those sterilized with 15 μg reduced the number of F1 larvae by 81.1%.This publication has 3 references indexed in Scilit:
- Determination of the Optimum Sterilizing Dosage for Pink Bollworms Treated as Pupae with Gamma Radiation2Journal of Economic Entomology, 1964
- Mating Studies of the Pink Bollworm1Journal of Economic Entomology, 1964
- Effects of Antimicrobial Agents on Micro-Organisms and Pink Bollworm DevelopmentJournal of Economic Entomology, 1962