Results of the study of antifungal activity of some copper-containing fungicides against plant pests.
2021
The aim of the study was copper-containing fungicides - a study of the antifungal activity of copper chloride, copper bluestone, heptache bordeaux and copper sulfate against Colorado potato beetle worms. Their high antifungal properties are established – Af equal to 86.2. Copper chloride has the highest rate - 95.6%. The biological effectiveness of these drugs has been studies, which is manifested by a reduction in the number of pests. It has been established that all tested drugs cause a significant reduction in pest numbers (Colorado potato beetle), if the number of pests on potato bushes not finished with fungicides was 21, the number of pesticide-treated plants should not exceed 2-3 copies. It should be taken into account that the fungicides we have tested are used in very low-substrate concentrates (0.00002-0.00008%), which has of great economic and environmental importance. Tab. 2, Ref. 3.
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