Sweet potato weevils are also known as sweet potato ant tusks. Guangdong calls them sand locusts and sand worms. It is one of the major pests that harm sweet potatoes. The autumn potato cultivated on dry slopes is more serious in the middle and late stages. The general damage rate reaches 10% to 15%, and the serious land mass reaches 40% to 50%. Control methods: conditional implementation of flood and drought rotation, such as rice potato crop rotation, potato vegetable crop rotation, peanut sweet potato crop rotation, sweet potato corn rotation, etc., in order to eliminate field pests. During the middle and late stages of the growth of sweet potato, it is necessary to carry out several times of earth-cultivation and fill the cracks in the quail to prevent insects from invading through cracks. Strengthen water management, keep the soil moist and inhibit the breeding. Clear the damaged potato fries and burn them out of the field. Chemical control can be used for bait trapping and pesticide spraying. Use 40% Dimethoate EC or 90% crystal dipterex 500 times liquid to soak potato chips for 12-20 hours. Take out and dry. Open a small hole in the field of sweet potato. Put the bait of bait into the hole and cover it with straw. , Put 50-60 piles per mu, change the bait once every 5-7 days, trap and kill adult. In the middle and late stages of the growth of the autumn potato, the potato field block was sprayed with 800-1000 times of 90% crystal trichlorfon to inhibit the invasion of the insect. Efficacy: complete removal of the skin of dirt, with whitening, Blemish effect, but also increase the skin's luster, make skin feel instantly cool.
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Companies registered capital of 35 million yuan, the end of 2014 the total assets of 48.69 million yuan, including fixed assets of 37.52 million yuan. The company's existing cooperation Orange cultivation base 7043.5 acres, the company production base is located in Jiangxi County Tech Industrial Park Chu Tan industrial area, covers an area of 120 acres, it has built a standard plant 9,000 square meters, Nissan 6000 kg Orange enzymes and other liquid enzyme products. Enzyme, known as enzyme, refers to a polymer substance having biocatalytic functionality. In the catalytic reaction system an enzyme, the reactant molecules are known as substrates, enzyme substrates by catalytic conversion to another molecule. Almost all cellular activity of enzymes involved in the process are required to improve efficiency. Similar to other non-biological catalysts, enzymes chemical reactions by lowering the activation energy to accelerate the rate of the reaction, most of the enzyme catalyzed reaction rate can be increased a million times; in fact, the enzyme is to provide an activation energy needs than another low way, so that more particles to have less than the activation energy of the reaction kinetic energy, thus speeding up the reaction rate. Enzyme as a catalyst, in itself is not consumed during the reaction, it does not affect the chemical equilibrium reactions. Positive enzyme catalysis, but also a negative catalytic effect, not only to accelerate the reaction rate, but also to reduce the reaction rate. And other non-living catalysts is different, having a high degree of specificity of enzyme, only a catalytic reaction or produce a particular specific configuration.
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