Licorice Pest and Disease Control Methods and Key Technical Points
(1) Rust: occurs from May to June, damaging leaves. Control methods: ① Gather and burn diseased branches; ② Spray 90% nabam at 400 times dilution in the early stage of the disease. (2) Brown spot: occurs from May to June, damaging leaves. Control methods: ① Gather and burn diseased branches; ② Spray 1:1:100-160 Bordeaux mixture or 70% thiophanate-methyl wettable powder at 1500-2000 times dilution in the early stage of the disease. (3) Powdery mildew: occurs from May to June, damaging leaves. Control method: Spray 0.2-0.3 degrees Baume lime sulfur
(1) Rust: occurs from May to June, damaging leaves. Control methods: ① Gather and burn diseased branches; ② Spray 90% nabam at 400 times dilution in the early stage of the disease.
(2) Brown spot: occurs from May to June, damaging leaves. Control methods: ① Gather and burn diseased branches; ② Spray 1:1:100-160 Bordeaux mixture or 70% thiophanate-methyl wettable powder at 1500-2000 times dilution in the early stage of the disease.
(3) Powdery mildew: occurs from May to June, damaging leaves. Control method: Spray 0.2-0.3 degrees Baume lime sulfur mixture.