02350naa a2200313 a 450000100080000000500110000800800410001910000190006024500700007926000090014930000210015849000080017952015340018765000230172165000150174465000240175965000160178365000160179965000110181565000170182665000090184365300080185265300110186065300150187165300120188665300080189870000150190677301150192114515442004-10-26       1989    bl uuuu     u00u1 u    #d1 aBOETHEL, D. J.  aPlant resistance and biological controlbinteractions on soybean.  c1989  ap.2349-2359. t.5  vt.5  aOver the past 20 years, multiple insect resistance in soybean, Glycine max (L.) Merrill, has been identified in several plant introductions (PI171451, 227687, 229358) and in breeding lines derived from these PI's. Resistance has been demonstrated to pest species in the orders Coleoptera, Hemiptera, and Lepidoptera, with the mode of resistance primarily antibiosis. Concurrent with efforts to develop and release an insect-resistant cultivar have been studies to determine the impact of these resistant soybean genotypes on natural enemies of soybean insect pests. Research conducted since 1983 has documented the influence of soybean antibiosis through the third and fourth trophic levels. In general, studies examining egg parasitoids (Scelionidae), egg-larval parasitoids (Encyrtidae), larval parasitoids (Braconidae, Eulophidae, and Tachinidae), and predators (Pentatomidae, Lygaeidae) revealed adverse effects on natural enemy biology such as reduced growth rates, survival, fecundity, and longevity. Although these studies of effects on individuals suggested some degree of incompatibility between plant resistance and biological control, a laboratory study involving a tri-trophic level system composed of a resistant cultivar, spider mite herbivore, and phytoseiid predator demonstrated an additive effect of the two management strategies. It remains for field studies examining interactions at the population level to clarify our understanding of the compatibility of plant resistance and biological control on soybean.  abiological control  aentomology  aControle Biológico  aEntomologia  aGlycine Max  aInseto  aResistência  aSoja  aEUA  aInsect  aResistance  aSoybean  aUSA1 aORR, D. B.  tIn: CONFERENCIA MUNDIAL DE INVESTIGACION EN SOJA, 4., 1989, Buenos Aires. Actas... Buenos Aires: AASOJA, 1989.