PodA b s t r a c t The using of microbiological preparations for plant protection steadily extends in the world. <...> A short list of microbiological preparations that are authorized for applying on the territory of the Russian Federation for insect pest control on crops is presented in the State Catalog of pesticides and agrochemicals. <...> However, the biological preparations allowed for berry crops is very limited in number, and for pine strawberry no one is indicated in the Russian Federation State Catalog. <...> In the represented work the capability of microbiological and other ecologically friendly preparations to control main pests on vegetable (cabbage, carrot, swede), baccate (blackberry, red raspberry, strawberry) crops and potato are considered under the conditions of Leningrad Province. <...> In the research, we specified norms, terms, frequency, and rate of treatment with microbiological preparations. <...> The tested preparations are created on the basis of different eelworm pathogenic fungi Berliner strains (Bitocsibacillin, Lepidocid, Batsikol), entomopathogenic Weiser (Nemabakt), also the laboratory sample based on entomoMetchn. was used. <...> We studied the effect of various terms of planting, field isolation and distribution of the insect pests on the large territories, and the number on insect pests as influenced by nutrient input during plant growth. <...> In each experiment there was a control variant (without application of any preparations). <...> The biological efficiency (BE) of the investigated preparations was estimated. <...> However, Bitocsibacillin and Lepidocid developed and manufactured in the Russian Federation can provide the 90-95 % BE against the cabbage white butterfly. <...> The biological efficiency of Batsicol against cruciferous tiddlywinks was 60-80 % when double treatments were used. <...> The BE reached 100 % in control of Colorado beetle larvae with Bitocsibacillin and Batsikol. <...> BE of both Nemabakt and laboratory sample of in wireworms control varied at 60-80 % levels. <...> On pine strawberry against strawberry blossom weevil the highest BE, comparable with efficiency of Fytoverm preparation, was observed for Batsikol. <...> Thus, together with some repellents and agrotechnical methods the biological preparations can provide reliable protection of vegetable and berry crops, and potato against the main insect pests, at least in the conditions of the Leningrad Province. <...> The use of microbiological preparations for plant protection from pests is constantly expanding in the world practice. <...> Entomopathogenic products based on the fungi Metchn. and Balsamo are important <...>