Fungicide screening for the english oak protection from the powdery mildew

Abstract

The estimation results of biological efficiency of modern fungicides in protection of English oak forest plantations from powdery mildew at single, double and triple spraying are given in this article. Experiments carried out in the field conditions showed that falcone has higher protective effect at the oak protection from fungus Microsphaera alphitoides Griff. et Maubl, both in single and in double treatment, falcone and folikur at the triple treatment. The tested fungicides showed not only absence of negative effect on the oak growth, but also stimulated its growth by reducing the affected area.