A technique for screening seedling stage maize, Zea mays L., for resistance to cinch bug, Blissus leucopterous leucopterous (Say), in the greenhouse was needed to identify possible host plant resistance. Development of the technique required the following: collecting a source of adults from field-reared overwintering insects and storing them until needed, developing a small test cage that would be suitable both for normal growth of the test seedlings and for the adults to feed at their normal site on the plant without escaping, determining the appropriate number of adults and feeding time required to separate genotypes with varying levels of susceptibility, developing criteria for evaluation of the responses of the plants to the feeding of the adults based on degree of damage to seedlings, and conducting a series of screening experiments to test technique efficiency in separating levels of susceptibility among maize genotypes. This technique resulted in the identification of a range of plant responses from highly susceptible to resistant. The inbred line 'Tx601'wasidentified as having resistance, whereas the inbred line 'Mp420' was highly susceptible to cinch bug damage.
Document Type: Research Article
Publication date: October 1, 1996
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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.