Koeh ler C S, Rosenthal S S. Economic injury levels of the Egyptian alfalfa weevil or the alfalfa weevil. Journal of Economic Entomology,1975, 68(1): 71-74.
[10]
Dowdy A K, Berberet R C, Stritzke J F, et al. Interaction of alfalfa weevil (Coleoptera: curculionidae), weeds, and fall harvest options as determinants of alfalfa productivity. Journal of Economic Entomology, 1993, 86(4): 1241-1249.
[11]
Hintz T R, Wils on M G, Armbrust E J. Impact of alfalfa weevil larval feeding on the quality and yield of first cutting alfalfa. Journal of Economic Entomology, 1976, 69(6): 749-754.
[12]
Wheeler A G. Studies on the arthropod fauna of alfalfa Ⅳ. spiders (ARANEIDA). The Canadian Entomologist, 1973, 105: 425-432.
[13]
Wheeler A G. Studies on the arthropod fauna of alfalfa Ⅵ. Plant bugs (Miridae). The Canadian Entomologist, 1974, 106: 1267-1275.
[14]
Wheeler A G. Studies on the arthropod fauna of alfalfa Ⅶ. Predatory insect. The Canadian Entomologist, 1977, 109: 423-427.
[15]
Radcliffe E B, Weires R W, Stuck er R E, et al. Influence of cultivars and pesticides on pea aphid, spotted alfalfa aphid, and associated arthropod taxa in a Minnesota alfalfa ecosystem. Environmental Entomology, 1976, 5(6): 1195-1207.
[16]
Degooyer T A, Pedigo L P, Rice M E. Effect of alfalfa-grass intercrops on insect populations. Environmental Entomology, 1999, 26(4): 703-710.
[17]
Howell J O, Pienkowski R L. Spider populations in alfalfa, with notes on spider prey and effect of harvest. Journal of Economic Entomology, 1971, 64(1): 163-168.