Phytosanitary Risks of Spring Rape Cultivation in Leningrad Oblast
2022
Shpanev, A. M. | Smuk, V. V.
In recent years, there has been a trend of rapid expansion of rapeseed acreage throughout the country. The northwest region is no exception: the results assessing phytosanitary risks of spring rapeseed cultivation are in demand here. Monitoring the spread and growth of pests in spring rapeseed crops was carried out at the agroecological station of the Menkovsky branch of the Agrophysical Research Institute (Leningrad oblast, Gatchinsky raion) during 2012–2020. Based on the results of the research, the composition of harmful organisms of economic importance in the cultivation of this crop in the soil and climatic conditions of Russia’s northwest was determined. Among weeds, these are field sow thistle, wild spinach, field pansy, hemp-nettle, corn spurry, while those among pests are crucifer flea beetle and cabbage moth, and that from diseases is Alternaria leaf spot. These species are associated with the main phytosanitary risks for spring rapeseed and regular monitoring and protective measures are required against them. At the same time, the closest attention should be paid to pests that can lead to partial or complete destruction of crops in a short time.
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