TY - JOUR AU - Lehman, W. M. AU - Stanford, E. H. TI - Egyptian alfalfa weevil …breeding resistant alfalfa JF - California Agriculture JO - Calif Agr Y1 - 1971/05/01 VL - 25 IS - 5 SP - 7 EP - 8 PB - University of California Agriculture and Nature Resources SN - 0008-0845 UR - http://www.ucanr.edu/sites/calagjournal/archive/?article=ca.v025n05p7 AB - THE USE OF ALFALFA VARIETIES resistant to the alfalfa weevil (Hypera brunneipennis (Boh.)) offers a sure, inexpensive means of controlling this pest. Results of work conducted at the University of California and elsewhere show that development of varieties resistant to the alfalfa weevil is possible. However, unlike resistance to the spotted alfalfa aphid, where wide differences in reactions were found among plants tested, only relatively small differences in the levels of resistance have been found among plants tested for the alfalfa weevil. These small increments in the levels of resistance will probably have to be combined into a higher level through generations of cross breeding and selection. The number of generations necessary is not known, but a lower number may be possible if use of such varieties is combined with an adequate level of biological control and good crop management.