How to improve the use of pesticides

The effect of pesticide use is affected by many factors such as the nature of the pesticide, the target of the object and environmental conditions. The rational use of pesticides is the key to improving the use of pesticides.

Target selection is targeted

According to various pathogens, pests, weeds, their body structure, physiological functions, living habits. There are also different choices for the different developmental stages of the same pathogen, pests and weeds. Therefore, when selecting pesticides, it is necessary to clarify the physiological mechanisms and hazard characteristics of the control objects, the varieties of crops and the period of growth, so as to achieve the right medicine.

Master the control period

Proper medication is the key to improving the application of pesticides. Premature application, not only does not play a role in the prevention and control of pests and diseases, the application of drugs too late, half the effort. In order to ensure the control effect and avoid the abuse of pesticides, the "two checks and two determinations" should be adopted, that is, the density of the insects should be checked, and the target fields should be controlled; the progress of pest development should be checked, and the control period should be determined.

Determine dilution and dosage

In the specific operation, according to the instructions for the use of pesticides, the use of pesticides without labeling is prohibited. When mixing pesticides with water, be careful to mix well. If tricyclic azole powder is used, it is required to be formulated into a mother liquor, and then diluted by dilution factor, the effect of use is obviously higher than that of the directly matched diluted solution.

Choose a method of application

Different application methods are used according to different pesticide dosage forms. Prevention and control of soil-borne bacteria, germinated weed seeds, and underground pests should be treated with chemicals to treat soil and dredge; for pests and diseases that are harmful to plants, spray or dusting should be used; Treatment with pesticide soaking or seed dressing.

Rational use of pesticides

Repeated continuous use of a pesticide on the same pest will result in resistance to pests and diseases, and the control effect is reduced. Therefore, the rational use of pesticides, the choice of pesticides with different mechanisms of action, or the rational use of pesticides according to the rational mix of pesticides, not only can expand the scope of prevention, improve control effects, but also delay the emergence of pest resistance.

Choose medication time

The prevention and control of sunrise pests should be arranged between 8 and 9 am, which is conducive to the opportunity for pests to increase their consumption of medicines and drugs; the prevention and control of night-time pests should be arranged between 5 and 6 pm. Another example is the insecticide phoxim. The herbicide flurinol should be applied in the evening or on cloudy days. When controlling rice aphids and rice planthoppers, there should be a thin layer of water in the field, so that the pests move upward from the rhizome to increase the chance of pesticide contact; the systemic pesticides are absorbed by the rhizomes with water and then transmitted to other parts of the rice plant for insecticide.
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