Korniyenko O. Ecoloqical justification of control methods of San Jose scale in the orchards of Ukraine

The object - San Jose scale. Jhe objective - is ti improve the system of San Jose scale restriction and eleborate the model of the shont-term borecast of its reproduction. The methods - laboratory, field, laboratory- field. The novelty - The author has investigated the effect of winter low temperatures on the survival of the San Jose scale larvas. The methods of the protection of the fruit crops planting stock from the quarantine organism in Ukraine's nursery farms have been improved.The rational expense of DNOC while early spring sprayings of orchards against San Jose scale has been determined.The author has drew attention to the efficiency of new pesticides while treating orchards against this pest, established causes of its constant harmfulness in the orchards of our republic, the specific composition of the armoured scale entomophags and their species role in regulating the amount of these species in different regions. The methods of determinating the female fertility and the dynamics of larvas let-out have been elaborated with the use of catching bands.Jhe results - of the researches are usedin scientific and research work and in.Field -agriculture.