Cucumber gray disease prevention and treatment

2023-10-08 22:08:16

Symptoms: mainly damage leaves, stems and melons. The leaves were infected, resulting in round, dark green lesions and sagging softly afterwards. Stem infected, stem thin, moldy or dark green soft rot, later slightly cracked, diseased part of the white powdery mildew. The fruit is infected, the fruit spot is dark green and round, and it is water-stained. The diseased part and its surrounding are sunken. The early onset of disease develops a dense white mold in the diseased area or shows a close-up stain of white fluffy mildew. The depression is prominent, and the upper part of the fruit stem is not obvious.

Prevention methods: 1, clean garden, deep land, rotation, promote crop rotation or sorghum cultivation; 2, selection of disease-resistant varieties; 3, use of formula fertilization, reduce the amount of fertilizer, improve disease resistance; 4, to strengthen field management; 5, Chemical control: Watering and spraying of 75% metalaxyl 800+1000 times that of ZESEN Zn and 61% of EB MnZn WP 500 times.

YT-T13

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