Abstract
This paper presents the ideas of the authors, confirmed by the results of a stationary field experiment on the possibility of widespread use of modern biological products of insecticidal action in the system of protection of the main oilseed crop of the Republic of Tatarstan namely spring rapeseed from such most harmful objects as cruciferous flea, cabbage moth, rape sawfly, flower beetle, secretive proboscis etc. The stationary field experiments were carried out on the basis of the agrarian biological technological park of Kazan State Agrarian University. The laboratory analyzes were carried out at the center of agroecological research of the agronomic faculty. The soils of the experimental site were gray forest, with the following agrochemical indicators: the content of humus according to Tyurin was 3.0%, mobile phosphorus was high (160 mg / kg) and exchangeable potassium was increased (145 mg/kg according to Kirsanov). The objects of research were the crops of spring rape of the Ruyan variety named after V.S. Pustovoyta, biological preparations Nodix Premium, Nodix Insectobact and Nodix Biofungicide. The importance of these studies is explained by the fact that in recent years, the number and resistance of pests of spring rape to chemical insecticides has increased and, accordingly, the chemical load on the environment has also increased. In this regard, the study of promising insecticides of biological origin on spring rape is an urgent task. During the research, it was found that the pre-sowing treatment of seeds with Insectobact (1 l / t of seeds) in combination with a nutrient solution Nodix Premium (0.3 l / t) in terms of the effectiveness of suppressing cruciferous flea bees is equivalent to dressing the seed with a chemical dressing agent Cruiser Rape (15 l / t). t). Moreover, a significant reduction in the chemical load on the environment ensures the use of the same biological products against other pests during the growing season of plants.
Highlights
IntroductionThe shortage of thermal resources in the summer months becomes the cause of mass destruction of plants by lurkers and rape sawflies [4, 5]
The protection of rapeseed raw materials from more than 80 pests was and remains the weakest point in the production of this crop [1,2,3].in recent years, due to hot dry May, the cabbage moth, despite 3-4 times insecticidal treatment, have caused unprecedented damage to the yield of the object of our research.At the same time, the shortage of thermal resources in the summer months becomes the cause of mass destruction of plants by lurkers and rape sawflies [4, 5].In this regard, the most important problem in the technology of cultivation of spring rape is the development of a highly effective system to protect plants from pests, including biological control measures
The purpose of the research is a comparative assessment of the effectiveness of the action of chemical and biological preparations of insecticidal action against the main pests of the studied crop
Summary
The shortage of thermal resources in the summer months becomes the cause of mass destruction of plants by lurkers and rape sawflies [4, 5]. In this regard, the most important problem in the technology of cultivation of spring rape is the development of a highly effective system to protect plants from pests, including biological control measures. The purpose of the research is a comparative assessment of the effectiveness of the action of chemical and biological preparations of insecticidal action against the main pests of the studied crop.
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