pnut pnut Peanut Science 0095-3679 0095-3679 American Peanut Research and Education Society 10.3146/i0095-3679-3-1-10 Articles Resistance of Peanuts to the Potato Leafhopper1 W. V. Campbell , D. A. Emery , and J. C. Wynne 2, 3 Professor of Entomology, Professor of Crop Science, and Assistant Professor of Crop Sciences, respectively. North Carolina State University. Raleigh 27607 The authors acknowledge the valuable assistance of Tasneem Khan and R. W. Batts, Research Technicians, Department of Entomology

1Paper Number 4713 of the Journal Series of the North Carolina Agricultural Experiment Station, Raleigh, North Carolina 27607.

 1 1976 1 1976 3 1 40 43 American Peanut Research and Education Society 1976 American Peanut Research and Education Society Abstract

More than 700 peanut (Arachis hypogaea) lines from the North Carolina germplasm collection were evaluated for resistance to the potato leafhopper, Empoasca fabae Harris, from 1961 to 1972. Twelve lines were selected as being highly resistant to the potato leafhopper. The lines represent two diverse sources of germplasm resistant to the potato leafhopper.

A study of the nature of resistance using standard histological techniques revealed leafhopper resistance was associated with a thick epidermis, long trichomes, and with a high percentage of straight trichomes on leaves. Leafhopper susceptible peanuts have leaves with an appressed surface texture.

 Additional index Words Arachis hypogaea L; , groundnuts; , Empoasca fabae Harris; , host plant resistance to insects; , nature insect resistance