ABSTRACT
Evaluation of the effect of parasitoid microhymenopterous on wheat aphids, in one local ity of the V Region of Chile

René R. Vargas M.1 y Hana Suzuki S.2
 

This study confirmed that these evaluations have to consider both the mummies and the dissection of aphids. The use of oniy une of these evidences will understimate the effect of parasitoids. The importance of the parasitoid microhymenopterous in the regulation of the populations of M. dirhodum, S. avenae, and S. graminum was also conf irmed; but this effectivenees s lower with R. padi. Also, the need for a more complete study of the biotic and abiotic factors affecting the parasitism of aphids is emphasized.

Keywords:
1 Subestación Experimental La Cruz (INIA), Casilla 3, La Cruz, Chile.