Pesticide scientific purchase and reasonable use

Pesticides are important agricultural production materials and play an irreplaceable role in increasing grain production, providing effective agricultural products, and increasing farmers' income. In recent years, with the development of modern agriculture and people's increasing demand for quality of agricultural products, pesticides have attracted public attention, especially because the unique geographical environment and climate conditions in Mengzi County have resulted in the growth of crops throughout the year. A large amount, because a part of farmers can not scientifically purchase and use pesticides properly, due to the improper use of pesticides caused by adverse effects on the growth of crops, which directly caused a certain amount of economic losses, capital and waste. In order to better guide the majority of farmers in the scientific selection of pesticides, the safe and rational use of pesticides, to maximize the effectiveness of prevention and control, reduce costs, and safeguard their own rights and interests in accordance with the law.

First, science buy pesticides

Before purchasing pesticides, read the label of the pesticide and select the appropriate pesticide according to the principle of “information of the product and medicine for symptomatic purchase”. Specific steps are as follows:

1. Look at the name

The pesticides produced starting from July 1, 2008 will no longer use trade names, such as big insects, excellent products, etc., and will use only common names for pesticides or simplified generic names such as imidacloprid and tricyclazole.

Before purchase, pay special attention to see if the active ingredient, name, content and dosage form marked on the label are listed below. Do not purchase pesticides that do not have active ingredients, names or contents!

2. Look at the "Three Certificates"

The "three certificates" number refers to the pesticide registration number, product standard number, and production approval number. The three certificates of domestic pesticides must be available, and only the number of pesticide registration certificates is the direct sales of imported pesticides.

3. See the scope of use

First, according to crop diseases, insects, and grasses that need to be controlled, the pesticides that are consistent with the applicable crops and control objects labeled on the labels should be selected. Do not purchase pesticides that are inconsistent with the crop or control that needs to be used. The second is to verify whether the pesticide application method is suitable for its own use. Third, when there are several products that can be selected, priority should be given to selecting products with less use, low toxicity, small residue, and good safety. The use of vegetables, fruits, tea, and herbal medicines prohibits the selection of highly toxic and highly toxic pesticides.

4. Look at net content, production date, expiration date

Pesticide labels should be marked on the date of production, validity, batch number, net content, do not purchase unmarked pesticides; do not purchase pesticides that have expired; do not purchase pesticides with unclear or unclear net content.

5. Look at product appearance and label

One is to observe the appearance of the product. Powdery products should be loose powders without lumps; granules should be uniform in size and should not contain more powder; products in the flow state such as emulsifiable concentrates or liquids should be homogeneous liquids, without precipitation or suspended matter. The second is to observe the appearance of the product's packaging and labels. In addition to the quality of the qualified products, the label or the specification of the product is printed clearly. The third is to observe whether the content of the label is complete.

6. Look at the price

The price of pesticides is related to the active ingredients and their contents, product quality and packaging specifications. All the preceding factors should be comprehensively analyzed. It is necessary to choose pesticides produced by enterprises with good effect and high integrity over a long period of time; to avoid unilaterally pursuing and buying cheaper pesticides; not to purchase pesticides whose prices are quite different from similar products, and the price is obviously lower than that of similar products and previous prices. There is a high possibility of counterfeiting.

Second, the rational use of pesticides

1. Choose a variety. Select the appropriate pesticide species for different control targets.

2. Formulate pesticides. The first is to calculate the dosage. The amount of pesticide should be calculated based on the application area and the recommended dosage on the label. The second is dispensing. The "secondary method" should be used to dilute the pesticide. (1) Water-diluted pesticides; first dilute the pesticide formulation with a small amount of water into a "master solution", and then dilute the "mother liquor" to the desired concentration. (2) Mixing pesticides such as soil and sand: The pesticide preparation should be diluted with a small amount of diluted carrier (fine soil, fine sand, solid fertilizer) into "family powder" and then diluted to the required amount. (3) It is to pay attention to dispensing safety. Pesticides should be formulated away from residential areas, livestock pens, and water sources. Pharmaceuticals should be used with the equipment.

3. Use pesticides

Crop pest prevention and control should follow the principle of "prevention first, comprehensive prevention and control" to minimize the use of chemical pesticides as much as possible in order to reduce the impact on the environment and quality of agricultural products.

The first is to grasp the time of medication; the second is to grasp the amount of water consumption; the third is to choose a good spraying equipment; fourth is to pay attention to rotating medication; Fifth is to strictly abide by safety intervals. Pesticide safety interval refers to the number of days from the last application to harvesting of crops. To ensure that agricultural residues do not exceed the standard, it cannot be harvested during safety intervals.

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