видовой состав

Insecticide effect on sinapis alba pests

The most common pests have been identified on the seed crops of wild mustard on the sod-weakly podzolic soil of the Vologda region. They are wavy cabbage flea, black cabbage flea, rapeseed pollen beetle, cabbage bugs, herbal bugs, mustard bugs and cabbage aphids. A high efficiency of insecticides against pests has been established. Among them are Sumi-alpha, CE with a flow rate of 0.2 l /ha-93.5-99.3 %; Karate Zeon, ISS with a flow rate of 0.1 l/ha – 90.5-93.5% and Fastak, CE with a flow rate of 0.1 l / ha – 84.5-90.5 %.

Ecological-Faunistic review of Gastropoda (Cuvier, 1795) representatives under the Vologda region conditions

Data on species composition of fresh-water mollusks, representatives of Gastropoda (Cuvier, 1795) under the conditions of the Vologda region are provided. 27 types relating to 10 childbirth: Aplexa (Fleming, 1820), Physa (Draparnaud, 1801), Lymnaea (Lamarck, 1799), Anisus (Studer, 1820), Armiger (Hartmann, 1840), Planorbis (Geoffroy, 1767), Segmentina (Fleming, 1818), Bithynia (Leach, 1818), Valvata (O.F.Müller, 1774), Viviparus (Montfort, 1810) are determined. Dominating look is Lymnaea truncatula, Müller, 1774. The main groups of biotopes are defined.

Species composition and the influence of insects-pollinators on crops of sinapis alba

There are identified insects-pollinators, belonging to the orders Hymenoptera (7 species), Diptera (7 species) and Lepidoptera (1 species), on seed crops of white mustard (Sinapis alba) on sod-weakly podzolic soil. It is established sufficiently high utility of pollinators, increasing seed yield by 31,8 %.

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