Abstract 



U.S. Department of Agriculture, Agricultural Research Serv- 

 ice. 1984. Standard Tests to Characterize Pest Resistance in 

 Alfalfa Cultivars. U.S. Department of Agriculture Miscellane- 

 ous Publication No. 1434, 44 p. 



This publication contains information for use as a working 

 document of pest resistance research in alfalfa. It is in- 

 tended for personnel concerned with breeding for alfalfa- 

 pest resistance, forage and seed production, and extension 

 or marketing. Included are a listing of the disease, insect, 

 and nematode pests that substantially limit growth and pro- 

 duction of alfalfa; U.S. distribution and severity maps for the 

 most important pests; scientists with expertise on specific 

 pests; and established resistance evaluation procedures 

 for 20 of the major pests. 



Keywords: alfalfa, cultivars, screening, insects, pests, 

 resistance, disease, distribution and severity maps 



The opinions expressed by the contributors to this publica- 

 tion are their own and do not necessarily represent the 

 views of the U.S. Department of Agriculture. 



Mention of companies or commercial products does not 

 imply recommendations or endorsement by the U.S. Depart- 

 ment of Agriculture over others not mentioned. 



Copies of this publication can be purchased from the 

 Superintendent of Documents, Government Printing Of- 

 fice, Washington, D.C. 20402 



Microfiche copies can be purchased from the National 

 Technical Information Office, 5285 Port Royal Road, 

 Springfield, Va 22161. 



Agricultural Research Service has no additional copies for 

 free distribution. 



U.S. Department of Agriculture 



Agricultural Research Service 



in cooperation with 



Agricultural Experiment Stations 



in 



Arizona, California, Kansas, Minnesota, 



Nebraska, Nevada, Utah, and Washington 



This publication supersedes and enlarges ARS-NC-19, 

 "Standard Tests To Characterize Pest Resistance in Alfalfa 

 Varieties," issued September 1974. 



Issued June 1984 



