pnut pnut Peanut Science 0095-3679 0095-3679 American Peanut Research and Education Society 10.3146/i0095-3679-8-2-7 Articles Resistance of Arachis Species to the Fall Armyworm, Spodoptera frugiperda1 R. E. Lynch , W. D. Branch , and J. W. Garner 2 Research Entomologist, AR, SEA, USDA, Southern Grain Insects Research Laboratory; Assistant Geneticist, Dept. of Agron.; and Research Assistant, Dept. of Ent. and Fisheries; Univ. of Ga., Coastal Plain Experiment Stn., Tifton, GA 31793

1Contribution from Agricultural Research, Science and Education Administration, U. S. Department of Agriculture and Departments of Agronomy, Entomology, and Fisheries, University of Georgia, Coastal Plain Experiment Station, Tifton, GA. Mention of a trademark or proprietary product does not constitute a guarantee or warranty of the produet by the U.S. Department of Agriculture or Univ. of Ga. College of Agriculture and does not imply their approval to the exclusion of other products that may be suitable.

 7 1981 8 2 106 109 24 6 1981 American Peanut Research and Education Society 1981 American Peanut Research and Education Society Abstract

Fourteen species of Arachis were evaluated for survival, leaf consumption, development rate, and preference by the fall armyworm, Spodoptera frugiperda (J. E. Smith). Using a host-suitability index, A. monticola, A. hypogaea, cv. ‘Florunner,’ A. stenosperma, and A. batizogaea were the most suitable hosts and were classified susceptible to the fall armyworm. A. burkartii and A. villosa were the least suitable hosts and were classified resistant. These classifications were also supported, in general, by preference of the insect for the species of Arachis.

 Key Words Fall armyworm resistance; , peanuts; , groundnuts; , leaf consumption; , survival; , preference; , host-suitability index