Population Dynamics of the Southern Green Stink Bug (Heteroptera: Pentatomidae) In Relation to Soybean Phenology
Authors: Schumann, F. W.; Todd, J. W.
Source: Journal of Economic Entomology, Volume 75, Number 4, August 1982 , pp. 748-753(6)
Publisher: Entomological Society of America
Abstract:The effect of planting date, cultivar, and state of soybean development on Nezara viridula (L.) population levels was determined by using five cultivars from different maturity groups planted on four dates ca. 2 weeks apart. Factors such as generation overlap, plant growth stage preferences for adult feeding and oviposition, and sex ratio fluctuations were also discussed in terms of soybean phenology. Oviposition by N. viridula was initiated during late vegetative stages of soybean, with peak oviposition occurring between R3 (beginning pod development) and early R5 (beginning podfill). More females than males were found in the earlier stages of soybean development. Third-generation southern green stink bugs developed in the early maturing cultivars, and fourth and fifth generations in the later-maturing cultivars. Stink bug population levels increased significantly during R3 and R4 (pod development). Greatest increases were observed during R5, and population levels generally peaked during R6 (late podfill). Cultivar and planting date significantly affected N. viridula population levels, but stage of soybean development was found to be the predominant factor affecting N. viridula populations in soybean.
Document Type: Research Article
Publication date: August 1, 1982
- Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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