Botrytis can damage cucumber melons, leaves and stems. Harmful melon strips invade and decompose the flowers first, causing the flowers to rot, grow a light gray brown mold layer, and then further infect the young melons, and the damaged melons quickly become soft, atrophic and rotten. The incidence of leaves is mostly round, nearly round to irregular lesions, diameter 2-5 cm, the lesion edge is obvious, the surface was light reddish-brown, there are a few gray mold. Stalk damage caused local rot, severe disease stem broken, the whole plant died. The temperature of about 20°C, lack of cloudy sunshine, relative humidity above 90%, and long dew condensation time are important conditions for the occurrence of gray mold. If the temperature is higher than 30°C and the relative humidity is below 90%, the disease will stop spreading. China Extract Powder For Use As Dietary Supplement Extract Powder, Extract Powder Manufacturer Shaanxi Kang New Pharmaceutical co., Ltd. , https://www.anabolicsteriod.com
Chemical control: In the initial stage of protection in the protected area, 10% of quick-acting smoke or 45% of chlorothalonil can be used, each time 250 grams per acre and smoked for 3-4 hours. Can also be used 50% acetaminophen WP 1500 times, 2.5% WP WP 600 times, 50% LM 500 times or 25% 5% ascillamine suspension spray, each 6-7 days spraying once, continuous control 3-4 times, requiring the drug to be sprayed on flowers and young melons. During the initial flowering period, the anthocyanin was added with 0.1% of 50% Skoda WP or 25% WP WP 200-300 times, which had obvious preventive effect.