How to distinguish between organic and inorganic pesticides

In the countryside, pesticides can be found everywhere, often in the hot summer, you can smell pesticides on the road, because in the summer, rice and other crops are the most vulnerable to pests, so everywhere are farmers who are pestifying crops and a strong smell of pesticides. Now that organic pesticides and inorganic pesticides are on the market, what is the difference between them? Organic pesticides can be divided into organophosphorus pesticides, organochlorine pesticides, organic nitrogen pesticides, organosulfur pesticides, organometallic pesticides, and organic pesticides containing nitro, amide, nitrile, triazine and other groups.

The organochlorine pesticides used in China are mainly hexahexahexa and ddt. These compounds are stable in nature, and the time required for half to degrade in the soil is several years or even more than ten years. They can enter water bodies with runoff, drift around the world with the atmosphere, and then fall to the ground with rain and snow, so pollution can be seen everywhere.

There are very few varieties of inorganic pesticide applications. The inorganic pesticides used in some areas are mainly mercury-containing fungicides and arsenic-containing pesticides. Mercury-containing fungicides, such as mercury (mercuric chloride), calomel (mercurous chloride), etc., are generally only used for seed disinfection and soil disinfection because they can harm crops.

Mercury preparations are generally stable in nature, highly toxic, and have serious residual problems in soil and organisms; Arsenic-containing pesticides are arsenic acid compounds such as arsenic acid (arsenic), sodium arsenite, and arsenic acid compounds such as lead arsenate and calcium arsenate. Arsenite compounds are highly toxic to plants and have been used as poison bait to control underground pests. Arsenic acid compounds were once widely used to control chewing mouthparts pests, but they were also replaced by organic insecticides due to the narrow control area and low efficacy.

I know why there are fewer and fewer inorganic pesticides on the market now, because they are too harmful. Although there are also harms of organic pesticides, they are inorganic pesticides. However, I still hope that one day our country will be able to produce pesticides that only target pests and do not pollute the environment.

To identify pesticides, we should first pay attention to the following aspects:

1) Check whether the outer packaging, inner packaging, label content, production date, batch number, etc. are complete.

2) Identification in appearance and morphology, qualified pesticides have the following characteristics:

Emulsifiable pesticide: generally light yellow or dark brown transparent liquid, first observe whether there is delamination, if there is delamination, the emulsion formed after dilution with water will not be stable.

WP pesticides: do not clump into clumps, and form a good suspension after dilution with water.

Suspension: a viscous, flowing liquid, which is allowed to stratify after storage, but can still return to its original state when shaken by hand, and is not allowed to coalesce into lumps.

Granules: uniform particle size and color, no dust, dry and loose.

The operation and management of pesticides has become stricter, but many farmers or friends have fake pesticides at the conference. Sometimes, even if it is a real pesticide, it will not achieve satisfactory practical results due to misunderstandings. So, how to distinguish the authenticity of pesticides in the case of buying pesticides?

In the process of applying pesticides, how to prevent misunderstandings? Take a look at the material I've sorted out for you.

The method of identifying fake and inferior pesticides is based on the label to see whether the specific content of the label is up to standard. According to the packaging identification, see whether the packaging, trademark logo, product manual, and factory inspection certificate meet the relevant national pesticide packaging requirements. According to some characteristics of the appearance, different pesticides have different characteristics, which can be distinguished from the appearance and color.

Verify with the pesticide registration certificate or the "Pesticide Registration Announcement" or log in to the China Pesticide Information Network.

MisunderstandingWhen buying pesticides, first, which medicine is low, buy which, very little look at the quality of the product. And the second article Then, the more the actual effect is not good, slowly supplement, originally a bottle of medicine 1 acre, now 1 bottle of medicine over half an acre of land, the cost of rising needless to say, but also pollute the soil and the environment. Look at the publicity is very big, but also please eat, but also ** activity gifts, I don't know how the quality of pesticides is, all in all, I bought it, and then I said, all in all, there are many gifts.

To the pesticide store, first ask the old is always not a product that works quickly, no matter how much, after using the actual effect initially works quickly, but it is not clear, the rebound is very serious, the money is used needless to say, and it takes time to work. I am reluctant to throw away the remaining pesticides and wait for the next time I use them again, not to mention the problem of the drug power (the drug power is undoubtedly affected), the first effort is made, and then the corner is put away, and the safety of the human association will continue to lead to risks.

In order to save costs, no matter which traditional Chinese medicines are mixed together, insecticides, herbicides, pesticides, fungicides, leaf fertilizers, whatever items it is, it can be beaten, in fact, fertilizer damage is also produced in this way. Look at what medicine others use, what medicine you use, only know that it is to see a doctor, but others treat a disease, you may get another disease in the field, blindly buy not only spend money in vain, and finally have to spray the above misunderstanding, I firmly believe that many friends have encountered, and then you should pay special attention to avoid. There are many types of green plant diseases, or it is necessary to choose pesticides that are suitable for the symptoms of food crops, so as to achieve half the result.

If you want to identify pesticides, you must observe and touch and smell the smell in order to distinguish good pesticides, good pesticides are all crystalline, the color is relatively light, the taste is not so strong, and it feels grainy.

It can be identified according to the anti-counterfeiting mark of the pesticide, and can also be identified according to the packaging of the pesticide, according to the appearance of the pesticide, according to the certificate of conformity in the pesticide, and the taste of the pesticide.

At this time, it can be judged by the relevant signs outside the pesticide, or according to the manufacturer of the pesticide, and then it can also be judged according to whether there are three certificates on the pesticide, or according to the appearance of the pesticide, whether it meets the corresponding standards, and can also be judged according to the composition of the pesticide.

1 Inorganic pesticides.

It is mainly a pesticide processed and formulated from natural mineral raw materials, so it is also called a mineral pesticide. Its active ingredients are inorganic chemicals, such as lime, sulfur, calcium arsenate, aluminum phosphide, copper sulfate, etc.

2 Organic pesticides.

A class of pesticides mainly composed of carbon and hydrogen elements, most of which can be prepared by organic synthesis methods. Most of the pesticides currently used fall into this category. It can usually be divided into plant pesticides (tobacco, pyrethrum, neem, etc.), mineral oil pesticides (petroleum emulsions, etc.), microbial pesticides (Bacillus thuringiensis, agricultural antibiotics, etc.) and organic pesticides synthesized by artificial chemistry according to their properties and properties.

Organic pesticides sound "organic", but this organic is fundamentally different from the organic of "organic food". Organic pesticides are chemically synthesized pesticides, and they are relatively toxic.

Biological pesticides are a new type of pesticides with low toxicity and environmental protection, mainly using microbial metabolites (such as BT bacterial toxins) and plant extracts (such as chrysanthemum extract).

Organic pesticides mainly include insecticides, fungicides, acaricides, herbicides, nematicides and rodenticides, such as trichlorfon, parathion, etc., which are the most used pesticides.

Organic pesticides refer to a class of pesticide preparations that use living organisms or their metabolites to prevent and control pests, pathogens, weeds, nematodes, rodents and other harmful organisms, or pesticide preparations with specific effects through biomimetic synthesis. Organic biopesticides must also pass organic certification, which can be used for the processing and production of biopesticides with relevant organic standards.

Organophosphorus, organochlorine, organonitrogen, organofluorine and other insecticides and organic fungicides such as: zeb zinc, antibacterial, etc.

Trichlorfon, phosphine, insecticidal double, pyrethrin and other herbicidal, insecticidal, and bactericidal agents, many of which are.

To find the country's first, to the Sino-Vietnamese agricultural network.