In August, when it is hot and rainy, pear trees are prone to diseases such as scab, melasma, and black spot diseases, and pests such as pear yellow mealybugs, cornel mealybugs, pear borerworms, and pear wood lice. They must be promptly treated with drugs. Pear orchards with diseases such as meteorism, can be sprayed with 12.5% ​​diniconazole WP 2000 times or 25% difenoconazole 8000 times. Pear gardens without disease should also be sprayed and protected in time. After the rain, systemic fungicide such as 50% carbendazim wettable powder 600 times, 80% triethylphosphonate aluminum wettable powder 600 times liquid, 70% Thiophanate-methyl WP 800 times, etc.; pre-rain spray protective bactericide, such as 70% mancozeb WP 1000 times, GREAT 30% basal copper sulphate suspension 500 times etc. . Pest control pear yellow meal, can be used 10% imidacloprid WP 3000 times or 3% acetamiprid WP 2000 times spray, yellow wolfberry into the bag rate of more than 20% of the pear garden, solution bags sprayed and then bagging. Pearwort, which has been seriously damaged and has caused adhesion of leaves, can be sprayed with detergent 300 times and then sprayed with 2% avermectin EC 4000 times. For control of pear pests, use 25% high-chlorinated chlorpyrifos EC 1500 times or 5% phenoxy-perchlorin EC 1000 times. For the control of Conradia aphid, it can be used to spray 22% more than 1000 times imidaclopramide EC 1000 times or 80% dichlorvos EC 1000 times. Fluorine-Containing Phenylamine Most of the Fluorine-Containing Phenylamine products are a light yellow oily liquid, relatively high density, insoluble in water. Most of them are used in the manufacturing of pesticides and dye intermediates, small part of them can be used as an analytical reagent. The steam or smoke of fluorine-containing phenylamine series is irritated to eyes, mucous membranes and upper respiratory. Vapor and air can form explosive mixtures, in case of fire, high-heat combustion caused the explosion. And oxidant may react. Decomposition by high fever and emit toxic gases. In case of high fever, increased pressure within containers, cracking and the risk of explosion. Protective measures must be done carefully during product storage. Once the fire occurred, it must be immediately evacuated from air leakage,personnel to a safe area, prohibit access to the contaminated area. Recommended emergency personnel wearing self-contained breathing apparatus and wear chemical protective clothing. In the ambulance personnel to ensure proper safety measures, immediately use foam, carbon dioxide, dry, sandy soil to put out a fire. Containing Phenylamine,2-Bromo-4-Methoxy-Phenylamine,5-Fluoro-2-Iodoaniline Taizhou Volsen Chemical Co., Ltd. , https://www.volsenchem.com