There are pus-like liquids on cucumber leaf stalks. Cucumber bacterial blight and cucumber spoilage can all cause stem rot.
First, the symptoms
1. Bacterial Wilt Disease The damaged parts of the stem become thinner, and the two ends of the lesion are burned like boiling water. The vines and branches above the diseased part are wilting, and the entire plant is soon to die. Cut open the stem and squeeze it by hand to overflow the white pus from the cross section. 2, cucumber bacterial blight began to produce elliptical or spindle-shaped, white lesions on the vine, overflowing amber resin colloidal liquid, stem shrinkage in late disease, longitudinal crack was messy, and sometimes grow many small black spots . When the disease is severe, the stem segments become dark, rot, and broken.
Second, control methods
1, cucumber bacterial wilt to strengthen the field management, reduce greenhouse moisture, remove the field strains, and spray "Tianda-2116" 800 times liquid + Fluoride star 600 times liquid. 2, cucumber blight (1) seed disinfection before sowing, with "Tianda-2116" dip and seed dressing special type 200 times liquid +99% "Tianda badewingling" powder 3000 times liquid soaking. (2) It is necessary to strengthen field management, reduce greenhouse moisture, and remove field strains. (3) In the early stage of onset, spray 50% Trimone Suspension 3000x, or 60% BaiTai Water Dispersible Pellet 2000x, or 25% Kerim Emulsion 3000x, or 50% Applied Power WP 500x, or 10% difenoconazole can be dispersed 2000 times, etc. were respectively added "Tianda-2116" 600 times + Tianda silicone 2000 times spray, every 7 to 10 days, continuous spraying 2 ~ 3 Times. Rainy days can be used 30% chlorothalonil smoke agent 250 grams per acre smoke, 7 to 10 days 1 application, continuous control 2 to 3 times.
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