At the peak of the purchase of pesticides, in order to prevent farmers from buying fake and inferior pesticides and reduce the losses caused by counterfeit and inferior pesticides to agricultural production, farmers should master the following skills when purchasing pesticides:

First, look at the appearance

The packaging should be complete, the bottle cap should be tight, the label should be intact, graphic and normative, clear and vivid; the powder should be loose powder, no agglomeration, no coarse particles; the emulsion should be free from suspended matter, and there should be no precipitate below.

Second, see the three cards

The three certificates refer to the pesticide registration number, product standard certificate number, and production approval certificate number. Domestic pesticides must have these three certificates, and the original imported retail packaged pesticides only have a certificate number for pesticide registration. There are also three certificates for the domestic distribution of imported pesticides, packaging, packaging, registration, license, and implementation of the three standards.

The pesticide registration certificate is divided into an official registration certificate and a temporary registration certificate. The official registration number is PD******. The temporary registration number is LS******. For example, PD76-2009 indicates the official registration No. 76 obtained in 2009; PD105-08 indicates the official registration certificate No. 105 obtained in 2008; LS200948 indicates the temporary registration certificate No. 48 obtained in 2009; LS09303 indicates that it was obtained in 2009. Temporary Registration Certificate No. 303.

Third, look at the manufacturers and contact address

Regular manufacturers are responsible for the specification and will write detailed product name, address, zip code, and contact telephone number on the product label. If the product label does not have this information, be careful when purchasing it.

Fourth, look at the active ingredients

Before buying pesticides, be sure to understand the active ingredient of the product and don't be fooled by the good name. Some manufacturers do not indicate what the active ingredients of the product are in order to prevent farmers from indicating it, or deliberately use the English generic name.

According to the provisions of the Institute for Drug Control, any Chinese common name must be specified in the Chinese common name, and only a small number of new pesticide products are imported. Since there is no suitable Chinese name yet, the common name in English is used. Domestic products should have a Chinese common name, and special attention should be paid when buying. The active ingredients and uses of the product can be found on the pesticide registration certificate of the Institute of Drug Control.

China will cancel the name of pesticides starting from July 1. The name of pesticide products will be reduced from 16,000 to more than 1700 by then. The introduction of policies is beneficial to regular pesticide plants and formal distributors.

Fifth, look at the content, see content (heavy) volume

Some pesticide manufacturers play tricks to reduce content. For example, the content of imidacloprid is from 2% to 25%, but it is called the same name. Some manufacturers know that farmers have the habit of comparing the price of pesticides by bottle. They specialize in producing products that are smaller than the market's common product packaging, and they are similar in terms of packaging image design, typeface writing, and bottle making styles, which can mislead farmers. The role.

The conventional packaging is 500ml, 250ml, 100ml, etc. Some manufacturers use 500ml bottles for 450ml in order to compete with the price, in order to look like 500ml dose is not the same, the bottom of the bottle is a bit thicker, and then protrude a little Although the unit price is reduced, the amount of medicine that farmers can buy is also low.

Some manufacturers use weight instead of capacity for price advantage. The majority of pesticides have a specific gravity of more than 1, 500g instead of 500ml, but their packaging remains unchanged. If farmers use bottles to calculate the dosage of mu, it is the capacity or the weight.

Sixth, see the validity period

For properly stored pesticides, their shelf life is generally 2 years, and the efficacy of expired drugs will be reduced. Therefore, when purchasing pesticides, special attention must be paid to the effective period. Only pesticides within the shelf life can be guaranteed.

Seven, see usage and precautions

Pesticide varieties vary widely, and different pesticides have different usages, dosages, toxicity, and detoxification. After purchase, be sure to carefully read the label on the use of methods and precautions, so that the correct use of pesticides. At the same time, we must ask for proof of purchase. If a use effect is poor, invalid, or produces phytotoxicity, etc., it should be sampled and submitted for inspection. If it is confirmed to be a counterfeit pesticide such as counterfeit, it can be used as an arbitration basis for possible disputes.

Eight, we must learn to calculate the cost

For example, acaricides generally use lower-priced imidacloprid during periods of low temperatures, and higher-priced locusts during periods of higher temperatures. As long as they are regular manufacturers, they will produce very good results.

In addition, it is worth noting that when buying pesticides, try to use a single dose, caution with the compounding agent. The purpose of compounding two or more insecticides is to complement each other and improve the control effect; the compounding of fungicides is to overcome or delay the resistance of pathogens to certain obligate fungicides. A large number of compound pesticides appearing on the market, some have similar single-agent mechanism of action, do not achieve synergistic effects; some prevent and control the compounding of different types of insect pests. Although the formula is acceptable, it is only applicable when these insect pests meet the control targets. . However, it is difficult for two different types of insect pests to reach the control targets at the same time. Using this compounding agent is actually a waste and increases the cost of medication.

The difference between the taste of purple Onion and yellow onion
  Purple onions and yellow onions also have a big difference in taste. Purple onions have a lighter spicy taste and a slightly sweet taste. They can be eaten raw, but the yellow onions are particularly spicy. They cannot be eaten raw and are suitable for frying. Eat after making or making soup. In addition, the purple onion has relatively thick flesh and high juice content, while the yellow onion has very thin flesh quality and low juice content.

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