Author: Wang Guishen
Enemy insects belong to organophosphorus pesticides, easily soluble in water, low toxicity to humans and animals, gastric toxicity, touch killing fumigation and other performance effects on pests, the application of an appropriate concentration of enemy insects liquid, can kill rice borers, rice bracts, locusts, thrips, etc., can also eliminate Lycian insects, as well as a variety of pests of crops such as Lyceum borers. It has a wide range of insecticides, high efficiency, and is a common insecticide for farmers.
Dimethods are one of the most commonly used pesticides for farmers, such as adding a small amount of alkaline substances to the aqueous solution, the dimethopods will become more toxic dichlorvos, and the insecticidal efficiency will be significantly improved. Due to the different purity of the drug, the degree of alkalinity of the alkaline substance has a certain difference, and it is necessary to add. Alkali amount. How much stable data can be obtained through the test, but special attention should be paid to the fact that the amount of alkali must not be too much, otherwise the enemy worm will decompose and fail under the action of excessive alkali.
Enemy insects can not be mixed with alkaline fertilizers and pesticides, which is the truth. When applying enemy insects, due to poor adhesion and dispersion of the liquid, applied to crops with thick wax layers, easy to lose, you can use with silicone additives or a little washing powder can promote the enemy insects to transform enemies in advance, and can volatilize part of the vapor, from the pores into the pest body, resulting in internal and external attacks, eliminating pests better effect.
In recent years, many farmers have regarded fish, chickens, pigs, cattle and other livestock and poultry farmers as a universal elixir when fish, pigs, cattle and other diseases, resulting in some aquatic products, livestock, poultry, animal husbandry diseases can not be treated correctly, delayed treatment, resulting in death. Therefore, aquatic, livestock, poultry, animal husbandry farmers, should pay attention to the correct use of enemy insects, enemy insects is a low-toxicity and efficient organophosphorus insecticide, processed finished products have 2.5% powder or 90% crystals can be used to control parasitic fish diseases, for example: with 2.5% powder 1 ~ 4ppm sprinkled throughout the pond, can kill three generations of insects, ringworms. 2.5% powder and ferrous sulfate mixture (ratio of 1.2:0.2) made of 1.4ppm solution spilled in the whole tank, which can prevent and control Greater China flea. With 2.5% dimethoate powder and ferrous sulfate mixture (ratio of 1:0.1), the solution made of 2.2ppm is sprinkled all over the pond, which can prevent the complications of Chinese fleas and fish lice on silver carp. Livestock and poultry often √ roundworms in the intestines, which can be mixed with a little 2.5% dimethoate powder in the feed toner.
It is worth noting that most organophosphorus pesticides, in the alkaline solution, are easy to decompose, reduce the efficacy, after spraying these pesticides, the use of alkaline soap washing powder can wash off the sticking to the sprayer's hands, face of the enemy insects, otherwise it will become dichlorvos, heavy poison accidents, it is best to clean 2 to 3 times, repeated cleaning as well.