Abstract
Diglyphus begini (Ashmead) is an important parasitoid of several Liriomyza spp. commonly infesting agricultural crops. Host records include 13 species of leafminers from two families of Diptera in 25 host species from 12 plant families. Adult longevity, female fecundity and host killing, larval developmental time, and sex allocation by individual wasps were examined under greenhouse conditions using L. trifolii (Burgess) in chrysanthemum as the host. Adult wasps exhibited a Type II survivorship; life expectancy at emergence for females was 6.3 d compared with 3.4 d for males. The net reproductive rate was 5.9 ovipositions per female, with the majority of ovipositions occurring between days 2 and 5 after emergence, and the mean generation time was 21.7 d at 24.1°C. Adult longevity and female fecundity were positively correlated with parasite body size. Most hosts were killed but were not used for oviposition during days 1 and 2 of a female's life; later, 1.3 hosts were killed for every host used for oviposition. A heavily male-biased sex ratio (mean, 72%) was produced by female wasps. Biological parameters were used to suggest the most efficient use of D. begini in an inundative biological control program.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
