PROBLEMS AND PROSPECTS OF SEA-BUCKTHORN PROTECTION AGAINST MAJOR PESTS

Abstract

Methods are suggested to reduce pesticide load in commercial sea-buckthorn plantations due to the application of biologically active supplement based on organic acids, preparation Aphidin on the base of natural BAS and biological preparation Phytoverm. The biological active supplement allows 2-2.5 times decreasing consumption rates of Phytoverm and Actellic with the same effectiveness of treatment against major sea-buckthorn pests. Moreover, it intensifies the growth and development of plants, increases their productivity, improves the biochemical composition of fruits as to such basic indices as carotenoids and oil contents, 2.2-4 times reduces the content of toxic residue in fruits and provides obtaining ecologically pure products under certain conditions. Both full and reduced Actellic dosages showed the highest insecticidal effect against larvae of sea-buckthorn fly, cotton-stem moth and sea-buckthorn psylla with pest death level of 95.8-100 percent. Equally, Phytoverm showed the high miticidal activity against leaf and gall mites ensuring pest death level of 98.9-100 percent. The preparation Aphidin on the base of natural BAS can be used for protection of sea-buckthorn plantations against green sea-buckthorn aphid.