01737naa a2200181 a 450000100080000000500110000800800410001910000200006024500390008026000090011930000140012852012110014265000240135365000090137765300230138665300260140977301200143514559982005-11-03       1992    bl uuuu     u00u1 u    #d1 aMcGAWLEY, E. C.  aInteractions with other organisms.  c1992  ap.97-105.  aOur understanding of the interactions of H. glycines, the most economically important plant-parasitic nematode on soybean in the United States (26), with other pest species is severely lacking. The antagonistic interactions of SCN with B. japonicum often account for much of the crop loss associated with this nematode. However, it should be noted that fewer than 25 scientific journal articles describe attempts to evaluate the combined impact of SCN and even other soybean pathogen. Soybean is confronted, often simultaneously, by pressure from multiple pest species: nematodes, fungi, bacteria, viruses, insects, and weeds. Public concerns over the abuse os pesticides, coupled with the loss of some of the most effective nematicides, necessitate further ecologically-founded, multiple-pest-oriented, studies of the nematode ecology of agroecosystems. This endeavor will allow crop scientists to more fully exploit natural competition between pest categories as a first-line rather than a last-thought protection strategy. Moreover, holistic evaluations of these natural systems enhance our understanding of their complexity and thereby lead to the development of more effective pest management systems.  aHeterodera Glycines  aSoja  aNematoide do cisto  aSoybean cyst nematode  tIn: RIGGS, R.D.; WRATHER, J.A., ed. Biology and management of the soybean cyst nematode. St. Paul: APS Press, 1992.