Abstract: Beril is a variety with high yield and beautiful fruit, good rigidity, strong ant-i rending and longer storingcharacters, bred in the Netherland country. In order to know the reaction of the variety to tomato gray leaf spot very well,the relationship between the weather factor and the occurrence of disease leaf( the disease index and the frequency of diseaseleaf) were analyzed on the basis of the some symptoms of damage were described in the field. The results showed thatthe disease has occurred at initial stages April, which the average of the temperature was 12.6 e and the relative humiditywas 59.20% . It was key period to control the disease in this stage. Because the rapidness of tomato gray leaf spot, itwould reach the highest frequency in the middle stage May, which the average of the temperature was 18.67℃ and therelative humidity was 71.00% . When the average of the temperature overpasses 10℃ and the average of the relat ive humidityexceed 50%, some measures should be made in order to control the disease.

Key words: Tomato gray leaf spot, Beril, Occurrence, Leaf disease

CLC Number: 

• S436.412