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Title: IN VITRO REARING OF TRICHOGRAMMA MINUTUM RILEY (HYMENOPTERA: TRICHOGRAMMATIDAE) FOR MULTIPLE GENERATIONS AND OTHER ADVANCES IN THE DEVELOPMENT OF AN IN VITRO REARING SYSTEM

Author
item Nordlund, Donald
item WU, ZHIXIN - TX AGRIC EXPER STATION
item GREENBERG, SHOIL - TX AGRI EXPER STATION

Submitted to: Entomology International Congress
Publication Type: Proceedings
Publication Acceptance Date: 8/25/1996
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: Trichogramma minutum Riley were reared on an artificial diet for 10 generations. Several quality control criteria; including adult emergence rate, development time, adult size and sex ratio; were monitored. In comparisons with T. minutum reared on Helicoverpa zea (Boddie) eggs, the values for the quality control criteria of in vitro reared insects was generally quite good, often better than those for in vivo reared insects. Though the diet used for these studies may not be suitable for use in commercial mass rearing (development of a more chemically defined diet is in progress) of these parasitoids, it does facilitate the development of an automated mass rearing system that could be used in a commerical setting. Progress in the development of such a system, including tehniques for collecting Trichogramma eggs, rearing to the adult stage, field release and necessary equipment will be discussed.