Effects of Cultural Practices and Rotational Crops on Abundance of Wireworms (Coleoptera: Elateridae) Affecting Sweetpotato in Georgia
作者:
Dakshina R. Seal,
Richard B. Chalfant,
Melvin R. Hall,
期刊:
Environmental Entomology
(OUP Available online 1992)
卷期:
Volume 21,
issue 5
页码: 969-974
ISSN:0046-225X
年代: 1992
DOI:10.1093/ee/21.5.969
出版商: Oxford University Press
关键词: wireworms;preferred crops;cultural practices
数据来源: OUP
摘要:
Effects of cultural practices on populations of wireworms affecting sweetpotato were evaluated, and a comprehensive survey was conducted to determine the preference of wireworms species for corn, sweetpotato, peanut, soybean, turnip, woodland, cowpea, fallow, cotton, tomato, and tobacco. In each of 3 yr, the highest number of wireworms per sample was observed in sweetpotato followed by peanut and corn. Few wireworms were recorded in fallow fields.Conoderus scissusSchaeffer andConoderus rudis(Brown) were most abundant in Georgia.C. scissusandC. rudiswere found in all crops and were most abundant in sweetpotato, whereasConoderus amplicollis(Gyllenhal) was most abundant in corn.Conoderus falliLane abundance was low in all crops. Cropping history influenced the wireworm species composition in sweetpotato. Wireworm populations increased in a crop when grown after sweetpotato, but baited traps of a corn-wheat seed mixture reduced wireworm populations significantly from the sweetpotato hills. Wireworms were more abundant in raised beds than between raised beds. Repeated plowing of the soil reduced wireworm abundance in a field. Abundance was greater in weedy fields than in weed-free fields.
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