Cucumber target spot disease mainly damages the leaves, and is susceptible to disease in both fruit setting and fruiting stages. The middle and lower leaves begin to develop. The yellow spot is initially immersed in water and then grows from bottom to top. The lesions are nearly round. Shape or irregular shape, lesions outside the brown, light yellow in the middle, lesions and healthy face boundaries clearly. Mid-morbid lesions are easily perforated, and the lesions on the front of the leaves are rough and uneven. The lesions turn brown as a whole, and the central part is grayish and translucent, and there is a clear eye-like bull's-eye in the center of the lesion. When the humidity is high, the lesion on the back of the lobe appears to be immersed in water or has ring-shaped grayish black mold. In severe cases, dry leaves die and cause premature pull. Control methods; available 40% tebuconazole suspension 3000 times + 70% thiophanate-methyl 800 times, or 40% necprozazole 4000 times + 70% mancozeb 700 times, or 25% Fresh amine emulsifiable concentrate 1500 times, spray every 7 to 10 days, even spray 2 or 3 times. Severe onset, can be used 50% small yellow spot target spot 1000 times or spot 1500 times (with foliar fertilizer) 3 ~ Shi once, can effectively control. Pvc Anti Slip Tape,Anti Slip Grip Tape,Non Slip Adhesive Tape,Waterproof Anti Skid Tape Kunshan Jieyudeng Intelligent Technology Co., Ltd. , https://www.jerrytape.com