The invention relates to the technical field of
biology, in particular to application of
serratia pumila MM
fermentation liquor and a
microbial agent in inhibiting growth of
phytophthora capsici and preventing and treating
phytophthora blight of capsici,
serratia pumila MM is preserved in China General
Microbiological Culture Collection Center on June 2, 2022, the preservation number is CGMCC No.24997, and the preservation number is CGMCC No.24997. The
serratia pumila MM is preserved in China General
Microbiological Culture Collection Center on June 2, 2022. The compound has a good inhibition effect on
phytophthora capsici, and the bacteriostasis rate reaches 79.05%; the growth of
pathogenic bacteria hyphae can be effectively inhibited, the hyphae are damaged, and the hyphae are broken, shrunk, deformed and the like. In a pot experiment, the prevention and treatment effects of a prevention group and a treatment group on the pepper phytophthora
blight are 88.33% and 58.30% respectively, and the morbidity of the pot prevention group is only 14.6%. In a potted
plant growth promoting test, the
plant height,
root length,
fresh weight and stem
diameter of pepper seedlings are obviously improved and are respectively increased by 29.56%, 51.41%, 25.90% and 20.00% compared with a contrast, and the
growth promoting effect is obvious. In a
field experiment, a
Serratia uchenensis MM agent treatment group is excellent in performance, the
control effect on the pepper phytophthora
blight is 82.2%, plants grow robustly, the
disease incidence rate is low, and the application prospect is wide.