Scientific and rational use of pesticides reduce the negative impact of pesticides

In recent years, with the adjustment of planting structure get ah, all kinds of crops intercropping area of rapid expansion of multiple cropping index has gradually increased, resulting in the occurrence of insect pest of crops and damage the trend was increasing year by year. Caused by pesticide application and the application area is doubled, the effective world was killing, destruction of eco-received, relative reduction in pollution-free products, the people's health is threatened. Therefore, the scientific and rational use of pesticides and reduce the negative impact of pesticides on agricultural production and income are important.

However, faced with rampant diseases and insect pests damage crops, many farmers feel helpless. The only way is to play to pesticides, "the worm hit three times, no insects three times to play." Cookin pesticides, widespread indiscriminate use of pesticides. But then with the current promotion of "green, safe and environmentally friendly food" runs counter to the idea, so many farmers into a dilemma.

Against crop pests and diseases can not rely on the use of chemical pesticides in a single, and to vigorously promote the use of agricultural, physical, biological, chemical, technology and other comprehensive prevention and control measures, prevention should be taken to implement the source control, such as the use of resistant varieties, promotion of control of nitrogen fertilizer, increased potassium technology, while strengthening the field of water and the cultivation and management, which can worsen pest grass field mice and the eradication of the living environment of reducing the incidence of crop pests and diseases base, frequency and degree of occurrence.

How can we make scientific and rational use of pesticides, while avoiding or reducing the negative impact of pesticides it?

1, to the prevention and control targets, in the plant protection department under the guidance of medication.

Should pay attention to prevention and treatment indicators, so that appropriate prevention and control of, not the sight of disease, insects spraying. During the growing period, a small number of lesions can be seen at any time and pests, should be based on the development of pest and crop progress and variety of pesticides, plant protection department under the guidance of the drug. Pest damage the sight of the field there is often no need to control the spraying. Because each insect pest, the control must reach a certain target, only need to use chemical control. Not reach the control targets, that unnecessary use of chemical control, even if the drug can be taken to pick the governance approach, minimizing the cost of agricultural inputs and reduce costs is to increase efficiency.

2, according to the provisions of national drug use of pesticides.

Not in vegetables, fruits, tea and other crops on the use of highly toxic pesticide residues. Some farmers poor safety awareness, mistakenly believe that the high toxic effects like, the non-food plants in fruits and vegetables and the use of pesticides for these crops, the consequences caused by drinking poison. Therefore, some pesticide use according to the State promulgated the "provisions of the safe use of pesticides," "pesticide safety standard" and "Pesticide Management Regulations" and other regulations. Highly toxic residues of pesticides is prohibited in vegetables, fruits, tea on the use, must not be free to expand the scope of use and changing use.

3, to mix pesticides in a scientific and rational, to follow the principles of pesticide mix.

Mixed use of pesticides, with a variety of pest control and improve the control efficiency, labor-saving advantages. But pesticides can not be free to mix, otherwise not only not achieve the desired effect, can also cause crop injury and disease increase. Pesticide mix should follow the following principles: First, poor mixing does not occur after the physical and chemical changes. Case of failure of alkaline decomposition of the pesticide can not be mixed with alkaline pesticides, pesticide wettable powder can be mixed with the emulsion; Second, the mixture no adverse effects on crops; third mixture can reduce the efficacy; Fourth, mixed use will not increase the cost. In reality, some farmers believe that the blind would be better to pay more of several pesticides. Therefore, the drugs are the same or even several drugs (the same composition with different names) together to use. In the survey, the town of eight individual city or even the 10 kinds of pesticides fungicides, insecticides, foliar fertilizer mix to use in a sprayer. In this way, increase the cost, but also did not increase efficacy, phytotoxicity will fix.

4, alternating rotation to prevent resistance to produce drug.

Long-term use of a single pesticide, pest resistance will be, resulting in decreased control effect. Therefore, do not find some kind of pesticide effect, on the long-term use. Even if found to decrease control effect, or the replacement of species, and methods used to increase the dose, the results become increasingly larger amount of drugs, disease and insect resistance is growing; then further increase the amount of drugs, resulting in a vicious cycle. Note from place to place, time and the system should be due to insect pests, farmers can choose several different formulations of control objects and insecticidal mechanism of alternating rotation of different pesticide use, the local conditions to the implementation of unified control.

5, according to the ratio of pesticide science not to any greater use of medication dosage.

Various types of pesticide products when used according to instructions required to use the recommended amount. Preparation of pesticides, many farmers do not believe the recommended dose, the concentration of free drug increased, and some simple in, dispensing without measuring, the number allowed. Some doses over multiple use, the formation of medicines Xiangui, the strange phenomenon of drug waste. Results not only a waste of serious injury and will lead to crop production, increased resistance to diseases and insect pests. Therefore, in strict accordance with the preparation of standard mixture of pesticides, and vigorously promote the use of ultra low volume spray techniques.

6 Select a country the formal registration of drugs.

Select a country the formal registration of drugs, not freeloaders or just look at the surface of that package, with those who have no registration, no component, no site of the three non-product. What is the most expensive pesticides? Days of silicone to remind you: In fact, the most expensive fake pesticides. Beat to death worms, cure disease, not eliminate the grass, one not twice, not three times, and money of work, delay the farming season, farmers caused irreparable damages, so the use of regular drugs, importing drugs people are smart people.