Phytosanitary condition of winter rye crops at agroecological stationary of Menkovo branch of Agrophysical Research Institute

Abstract

As a result of the conducted research on winter rye crops in the Gatchina district of the Leningrad region, the formation of a favourable phytosanitary environment was revealed. The situation is complicated by phytopathogenic objects, primarily snow mold. The high frequency of recurrence of severe winter rye damage by this disease indicates the need for protective measures. The presence of favourable weather conditions can lead to strong affection of winter rye plants with scab or brown and stem rust. In the first case, two fungicidal treatments of vegetating plants are required; in the second, one treatment in the phase of the beginning of earing. Carrying out of herbicide treatments is required only in the years of coincidence of strong manifestations of snow mold and high number of wintering species of weeds. The use of insecticides on winter rye crops is not required. The obtained data should be in demand in the development of integrated system of protection of winter rye from the complex of harmful organisms for the North-Western region of cultivation.