Preparation of different origin impact on zoosporangium viability of potato wart causative agents Synchytrium endobioticum (Schilbersky) Percival

Goal. To determine the technical efficiency of chemical, biological and new synthesized drugs in controlling causative agent potato cancer.
 Methods. For research, soil samples were used, taken from foci cancer before after treatment with following drugs: chemical — Emesto Quantum, 273.5 FS (clothianidin, 207 g/l + penflufen, 66.5 g/l), Consento 450 SC (phenamidon, 75 g/l, propamocarb hydrochloride, 375 g/l); Fitodoktor, p. (Bacillus subtilis bacteria, IMV B-7100 (26D), titer 5 ќ 10 9/g drug), Planryz, genus. (Pseudomonas fluorescens piece AP 33, 3.0 9 cm3); onium derivatives 4-aryl-5-methoxycarbonyl-3.4-dihydropyrimidin-2-one. Soil for detection pathogens one sample by standard methods according to EPPO Standards PM 7/28 (2), geolocation sampling points recorded Garmin eTrex Legend GPS navigator. Zoosporangia isolated flotation «RUTA» device sodium iodide solution. The viability zoosporangia was determined using Coomassie blue G-250 effectiveness testing application pesticides (Trybel S. others).
 Results. 2019—2021, effect preparations on investigated. As a result derivative 4-aryl-5-methoxycarbonyl-3.4-dihydropyrimidin-2-one, 71.4%; 48.4%; 82.3%. action drug FitoDoctor, 25.8%; Planriz, 32.3%.
 Conclusions. protect potatoes disease, it is recommended use 4-aryl-5-methoxycarbonyl-3,4-dihydropyrimidin-2-one, which will allow reduce number viable pathogen 3—5 years thereby pesticide press growing improve ecological condition environment.