Rezultatele aplicării noilor procedee în combaterea dăunătorilor rapiței de toamnă

Abstract

Autumn rape during vegetation this crop can be attacked by a complex of polyphagic pests, or rarer - pests with a narrower nutrition specialty. In autumn, rape seedlings canbe attacked by Pieris spp., the caterpillars of the second generation Agrotis segetum L., Athalia colibri Christ. Early spring rape seedlings are particularly attacked by the hibernating adults of the Phyllotreta atra F., Ph. nigripes F., Ph. nemorum. At the same time, however, leaves, floral buttons and inflorescences are attacked by various species of aphids, the most common of which are: Brevicoryne brasicae L., Aphis fabae L., Myzodes persicae L., defoliation pests can be caused by Pieris brassicae L., Mamestra brassicae L., Plutella maculipennis Cust., Athalia colibri Christ., larvae and adult Ceuthorhynchus spp., Entomoscelis adonidis Pall., Colaphellus sophiae Schall. However, all listed agro-technical measures do not provide total pest protection. In the integrated rabbit pest control complex, chemical measures play a special role. The chemical control of pests in different crops is ensured by a large number of insecticides, and for rape crops these questions require a much wider study.