Resistance of Commercial Cruciferous Varieties to Larvae of the Diamondback Moth in the Coastal Plain of North Carolina1,2

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Cruciferous varieties encompassing 10 different crops were compared in the field in the Coastal Plain of North Carolina for resistance to larvae of the diamondback moth, Plutella maculipennis (Curtis). The most resistant varieties were radish, turnip, mustard, and some varieties of cabbage, kale, and collard. The most susceptible varieties were broccoli, rutabaga, brussels sprouts, cauliflower, and some varieties of cabbage, collard, and kale. Vates kale was among the most resistant crucifers and Dwarf Siberian kale was one of the most susceptible to diamondback back moth larvae. In the laboratory, newly hatched larvae were observed to enter the lower leaf epidermis and live as miners. Vates kale showed a higher antibiosis to these larvae than Dwarf Siberian kale. An examination of the leaf tissue showed Vates kale to have densely compact cells without air spaces, while Dwarf Siberian kale had loosely arranged cells and an abundance of air spaces. None of the young larvae survived on old hardened leaves of either variety.

Document Type: Research Article

Publication date: October 1, 1967

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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.
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