Seedlings of 10 alfalfa entries selected for resistance or susceptibility to Empoasca fabae (Harris) in the greenhouse and unselected seedlings of the same entries were transplanted in the field and evaluated visually (1-9 ratings) for yellowing on 2 dates. The percentages of resist- ant plants from the 3 Groups differed little on the 2 dates, indicating that the frequency of field-resistallt plants was not increased hy selection for resistance in the greenhouse. The entries differed significantly in resistance to yellowing.
Document Type: Research Article
Publication date: October 1, 1970
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.