Environmental Entomology (1984) 13, 105-109

J.E. Funderburk, L.G. Higley and L.P. Pedigo (1984)
Seedcorn maggot (Diptera: Anthomyiidae) phenology in central Iowa and examination of a thermal-unit system to predict development under field conditions
Environmental Entomology 13 (1), 105-109
Abstract: Two generations of seedcorn maggots (SCM) occurred in central Iowa in 1980 and 1981. In both years, overwintering flies appeared in late April (at 181/198°D_c; 1980-1981) and the F₁ generation appeared in early June (at 494/490 degree-days C; 1980-1981). SCM were uncommon or absent in the summer and fall, strongly suggesting aestivation by flies in the F₂. Air temperatures were useful in predicting SCM development in the field; however, both air and soil temperatures overestimated SCM development. Our results indicate that low-risk planting periods could be identified with additional knowledge of SCM population biology.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Joe Funderburk

Research topic(s) for pests/diseases/weeds:
population dynamics/ epidemiology
environment - cropping system/rotation

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Delia platura	Alfalfa/lucerne (Medicago sativa)	U.S.A. (mid N)
	Delia platura	Maize/corn (Zea mays)	U.S.A. (mid N)
	Delia platura	Soybean (Glycine max)	U.S.A. (mid N)