Can low-poison pesticides be sprayed more?
At present, many farmers have high-toxic pesticides that are misunderstandings of high-efficiency pesticides. Many farmers use pesticides instead of measuring cups, but follow the feelings and even mix 3 to 4 pesticides together, thinking that the control effect is certainly good. As everyone knows, this method of medicine not only increases the production cost, but also fails to achieve the control effect. Magnet Lift,Industrial Magnet Lift,Arc Industrial Magnet Lift Sunny Fore Magnet Company Limited , http://www.jmmagnet.com
Many farmers do not understand the safety of pesticides, thinking that low-toxic, low-residue pesticides can be sprayed more, and there is still blindness in actual operation. It is unclear what time to use the medicine, what medicine to choose, and how long the safety interval of the pesticide is. Failure to properly master pesticide use has become a key factor affecting the safety of agricultural products.
Prevention and control of tomato gray mold: only need to spray 1 or 2 times during the flowering period. The pesticides are low-toxic, low-residue, chlorhexidine, shangjiale, and xiangling. The safety interval of the above pesticides takes 14 days.
Prevention and treatment of grape downy mildew: only need to use Kejia 1~2 times in the middle of May. If the fight against downy mildew occurs again, the effect of several consecutive drugs is not good, not only the pesticide residue of the fruit exceeds the standard, but also increases the production cost.
Prevention and control of phlegm and blood stasis: As long as the 5% of Regent is sprayed at the peak of spawning hatching.
Cold water in the early season: only the first generation of mites harm, so only one control, and some farmers even spray 5 to 6 times.
Prevention and control of melons and peas: only need to fight drugs during flowering larvae invasion. If the insects break into the cowpeas, then the fight is no longer effective.
In addition, many farmers believe that biological pesticides are safe, but it is not. When controlling strawberry gray mold, it is only necessary to prevent low-toxic pesticides for 1~2 times during flowering. If the number of times is too much, the residues of low-toxic pesticides on strawberries will exceed the standard. For example, bio-pesticide avermectin (insecticide), control red spider on cotton, use up to 2 times per season, the last application is 21 days away from the harvest; control the leaf miner and red spider on citrus, each The season is also used up to 2 times, and it takes 14 days from the harvesting period; on the leafy vegetables, the anti-Plutella xylostella is used once in the first season and 7 days from the harvesting period.