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Since 1957 the spittlebug Prosapia bicincta (Say) has become an increasingly important pest of Coastal Bermuda grass in South Carolina. Biological investigations indicated that the complete life cycle required a minimum of 46 days under field conditions. Eggs were deposited in the soil, in trash, on the plant, and occasionally inserted partially into the stem of the plant either singly or in cluster. The egg served as the overwintering stage and a single female laid as many as 81 eggs in a lifetime. Five nymphal instars were observed during the nymphal feeding period. Feeding was observed on a wide variety of host plants. Injury to plants was observed resulting from the feeding of both the nymph and adult stages. Guthion® (O,O- dimethyl S- (4-oxo-l,2,3-benzotriazin-3 (4H) -ylmethyl) phosphorodithioate), endosulfan, endrin, and DDT were the most effective insecticides tested as foliage sprays against nymphs. Heptachlor and endosulfan were also effective as granular formulations. Guthion, malathion, mevinphos, endosulfan, and carbaryl were 100% effective as foliage sprays in controlling adults. Parathion, naled, and methoxychlor were slightly less effective.
Document Type: Research Article
Publication date: April 1, 1965
More about this publication?
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.