Emergence Patterns of the Seedcorn Maggot, Delia platura (Diptera: Anthomyiidae)
Throne, James E. ; Eckenrode, C. J.
In: Environmental Entomology, 1985, vol. 14, no. 2, p. 182-186
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- Time of emergence of seedcorn maggot (SCM), Delia platura (Meigen), adults that developed from eggs laid in field plots from May through October 1981, was determined during 1981, 1982, and 1983. Some SCM that developed from eggs laid as early as May 1981, overwintered, and the proportion of SCM overwintering increased when eggs were laid June to October. Adults emerged from overwintered pupae from April through October 1982, and in May and June 1983. Adults of the closely related bean seed maggot (BSM), D. florilega (Zetterstedt), also emerged in the plots, but in smaller numbers than SCM. BSM males emerged in 1981 only in plots planted during May 1981