BIOLOGICAL CONTROL OF THE PATHOGEN ALTERNARIA CAPSICI IN BELL PEPPER CROP IN GREENHOUSE

Abstract

Romanian agricultural research gives special importance to the development of technologies for the cultivation of vegetables grown in ecological agriculture.
This paper presents the biological control of Alternaria capsici pathogen on bell pepper cultivated in greenhouse, using Cavaler 600SL (microorganisms Bacillus pumillus and Bacillus subtilis) 0.3 %; Amulet (microorganisms Bacillus thuringiensis, Bacillus subtilis, Bacillus megatherium) 40 l/ha; Zytron (citrus seed extract 20 %) 0.15 %; Mimoten ( Mimosa tenuifolia 80 % extract) 0.3 %. The efficacy of biological products varied between 68.08% (Zytron 1,5 l/ha) and 94.38 % (Amulet 40 l/ha ) in controlling this pathogen on leaves. It is recommended biological products in case of low attack or preventive when conditions are favorable for the attack.