Today's agriculture is almost inseparable from the use of pesticides, the correct use of pesticides so that farming becomes quick and easy. However, some friends can't use pesticides correctly, which causes the occurrence of phytotoxicity. How can it be used correctly?
First, the base must be clear: we must master the physical and chemical properties of the pesticides used, the control objects and precautions. Each pesticide has its own chemical characteristics, applicable conditions, scope of prevention and control, and each type of control object (sickness, pests and diseases) has its own development law. Its weak link is the best time for our medication. That is, the prevention and control period. Do your mind and be well-targeted.
Second, symptomatic treatment: a variety of types of pesticides, fungicide, insecticides, herbicides, plant growth regulators, etc., in the purchase of pesticides, must pay attention to "right." In addition, there are many varieties of insecticides and fungicides, so try to choose the specific drugs for pests and diseases.
Third, timely medication: often heard people complain about fake drugs, low efficacy. In fact, many pesticides are not fake or bad. It’s just that the time used is not right, and it has not achieved the expected results. Each pest has a critical period of prevention and control, and timely medication can do more with less, and once it is missed, it is difficult to achieve the desired results. Other farmers believe that the higher the temperature, the better the drug effect, and often choose to take the drug at noon. As everyone knows, many of the pests are afraid of heat at this time, and the medicine is not as good as the insects. Moreover, most pesticides are easily decomposed under high temperature, and high temperature operations are also likely to cause operator poisoning accidents.
Fourth, the right amount of medication: people often treat worms, think that the greater the dose, the better. Although the amount of medicine is small, it is not effective, but the amount of medicine is large. In addition to causing waste, it is also prone to phytotoxicity and human and animal poisoning accidents. If a herbicide is used, its concentration requirements are very strict, and it must be properly proportioned according to the prescribed dose. If it is slightly careless, the grass seedlings will die. Therefore, it must be based on the growth of crops and the extent of pests and diseases, the right ratio, reasonable use. Under normal circumstances, crops grow vigorously, when the pests and diseases occur seriously, the amount of medicine is small; when the seedlings and pests occur less lightly, the dosage is small.
Fifth, the method should be appropriate: According to different pests and diseases, choose different prevention methods, such as seed dressing, bait bait, stalking, dusting, spraying, etc. For the prevention and control of underground pests, the method of smear bait is generally adopted, and the method of applying the medicinal stem to the disease of the stem is selected. But no matter which method you choose, you should use it evenly and thoughtfully.
The use of pesticides is introduced here, and the use of certain pesticides for a long time alone is highly resistant to pests. Farmers' friends should use multiple pesticides at the same time according to different pests or choose two or more kinds according to the characteristics of pesticides, which can effectively delay the emergence of drug resistance.
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