APLICAREA ENTOMOFAGULUI TRICHOGRAMMA EVANESCENS WESTW. PENTRU PROTECŢIA CULTURII DE PORUMB CONTRA COMPLEXULUI DE BUHE

Lidia GAVRILIŢA Institutul de Protecţie a Plantelor şi Agricultură Ecologică al AŞM

Rezumat

The implementation of tehnologies for the production and applicaton of the entomophage Trichogramma evanescens during the year 2006 were carried out under laboratory conditions at the Institute for Plant Protection and Ecological Agriculture of the Academy of Sciences of Moldova and on the maize fields of the Cooperative Farm „Agrosargal” in the village of Sarata Galbena, region of Hanchesti. The biological efficacy of Trichogramma evanescens with improved qualities on the maize fields varied from 71,0 to 80,0%, the degree of pest attack varied from 7 to 11% in the variant with Trchogramma evanescens with common qualities varied from 67 to 73%, the degree of pest attack varied from 9 to 16% during the peniad of generations of development of noctuids complex. In control the degree of the noctuids complex attack was from 80 to 91%. When compared the results of I and II variants and those of control by biological efficacy and of the degree of pest attack the difference is essencial.