Bacillus amyloliquefaciens and its secretions have significant antagonistic effects on various pathogenic bacteria that cause root rot of fruits and vegetables, and can effectively prevent and control root rot of fruits and vegetables.

Bacillus amyloliquefaciens and its secretions have significant antagonistic effects on various pathogenic bacteria that cause root rot of fruits and vegetables, and can effectively prevent and control root rot of fruits and vegetables.

Soak the fruit and vegetable seedlings in the bacterial solution prepared by Bacillus amyloliquefaciens with a concentration of 0.5 × 109 ~ 1.5 × 109 cfu/mL for 5 ~ 15 minutes before planting, and at the same time 18 ~ 22 days after planting the fruit and vegetable seedlings with a concentration of 0.5 × 109~1.5×109cfu/mL of Bacillus amyloliquefaciens by irrigating the roots once, and the dosage of 8~12L/hm2 was appropriate.

The field control effect test results showed that the control effect of Bacillus amyloliquefaciens on cucumber root rot was 56.29%, the control effect on tomato root rot was 66.75%, and the control effect on strawberry root rot was 74.17%.

The effect is remarkable.