Relative Effectiveness of ULV Spray Applications of Spores of Nosema locustae Against Grasshoppers
Authors: Henry, J. E.; Oma, E. A.; Onsager, J. A.
Source: Journal of Economic Entomology, Volume 71, Number 4, August 1978 , pp. 629-632(4)
Publisher: Entomological Society of America
Abstract:Spores of Nosema locustae Canning were applied in ULV aqueous sprays at 6.18 × 109 spores/585 ml water/ha, 1.24 × 1010 spores in 585 ml water/ha, and 2.47 × 1010 spores in 585 ml water/ha and were compared to standard treatments of 2.47 × 109 spores on 1.68 kg wheat bran/ha and to untreated checks. Densities of grasshoppers in plots treated with spores on wheat bran were significantly lower 4 and 7 wk after treatment than densities in plots treated with the ULV sprays and in check plots. Also, a higher incidence of infection resulted from the spore-wheat bran treatment than from spores in ULV sprays.
Document Type: Research Article
Publication date: August 1, 1978
- 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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