Development of Botrytis cinerea under reduction of pesticides treatments in Macedonian viticulture production

The monitoring of development of Botrytis cinerea under reduction of pesticide treatments in Macedonian viticulture production is possible only when introducing a disease forecasting model. B.cinerea causes an increase in the number of chemical treatments just before harvest and calls into question the environmental and health value of the product. Therefore, an attempt was made to create a forecasting model for Botrytis which is based on the relationship between relative humidity and the temperature in the vine canopy. The forecasting model for Botrytis was applied at the white varieties Smederevka and Zilavka and based on the data obtained was made ANOVA statistical test which proves the reliability of the model. On the localities, Smilica and Sopot, Kavadarci, Republic of Macedonia, are the experimental fields that were observed for three consecutive years (2017 till 2019).