Answer: This belongs to the bacterial leaf blight of cucumber. Farmers can start spraying at the early stage of disease, spray once every 7-10 days, and spray 23 times continuously. The agent can be selected from 47% Garnett's WP, 72.2% Preced's water-soluble liquid, 77% killable WP, etc. It can also be sprayed with 72% agricultural Streptomycin WP + 75% chlorothalonil Clear WP for prevention and treatment. Made of all steel, sturdy and pry-resistant Room Safe,Home Code Safe,Code Safe Box Hotel,Portable Mini Electronic Safe Ningbo Reliance Security Technology CO.,Ltd , https://www.reliancesafes.com
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