Research Regarding Control of Pathogen Microsphaera abbreviata in the Climatic Conditions of 2010 Year

Liviu HOLONEC, Rodica HOLONEC, Ioan TAUT, Vasile SIMONCA

Abstract


In the nurseries and natural regeneration of oak trees, on the background of intense accumulation on the level of the crowns of the seeding plants, strong attacks of phyto-pathogens are registered that cause the so called mildews and the most important of them is. The effects of mildews are manifested by diminutions of growing and biomass accumulations, with direct repercussions on the further quality of the attacked exemplars. As the age of the attacked exemplars is younger, as the intensity and degrees of attack are stronger. In this phase, the only measure of quick intervention, with direct effects is the chemo therapy. It is important to use only biodegradable substances, with no permanence on soil level. There are a lot of substances that may be used in fighting against mildew. This work proposes to verify the efficiency of some new fungicides (Allegro, Cabrio, Tilt, Duett ultra and Kumulus), compared with samples, untreated. The concentrations and doses for applying were differently fixed for each substance depending on the technical instruction for the use of products.

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DOI: http://dx.doi.org/10.15835/buasvmcn-hort:7006




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