The Skyhawk Brothers Plant Protection UAV Wheat Flight Prevention Plant Protection UAV market is beginning to mature. Undoubtedly, the plant protection drone has brought the gospel to the integrated management of agricultural field pests and diseases, and it has made it possible to mechanize this process. However, it is well known that the root of pest control lies in the agent, followed by mechanization.

It is necessary to talk about the application of pesticides. Otherwise, not only will it not achieve the control effect, but it will also be susceptible to phytotoxicity. In the process of using pesticides, the flying hands may have some inattention, and the Tianying Brothers Xiaobian lists some:

First, the pesticide preparation problem

1. Do not use well water to prepare pesticides. Due to the high content of minerals in the well water, especially calcium and magnesium ions, the addition of pesticides to the well water is prone to chemical formation and precipitation, which leads to a reduction in the efficacy of the pesticides and even no efficacy.

2. Do not use pesticides that are easy to turbid to prepare pesticides. Due to the high amount of impurities in the living water, it is easier to block the plant protection drone nozzle by using the water in the ditch containing a large amount of sand, and it also destroys the suspension of the liquid to cause precipitation.

3. Do not increase or decrease the amount of pesticides at will. It is necessary to strictly use the medicines prescribed in the instructions or the recommended dosages of agricultural technicians. If there is too little medicine, there is no medicine effect. Too much medicine may cause phytotoxicity and increase pesticide residues in agricultural products, which will increase the cost of use.

4, should pay attention to pesticide mixing problems. No matter what kind of medicine is mixed, it should be used now and cannot be placed for more than 3 hours.

The order of mixing pesticides should be accurate. The order of foliar fertilizer and pesticides is usually: micro-fertilizer, water-soluble fertilizer, wettable powder, water-dispersible granules, suspending agent, microemulsion, water emulsion, water agent, emulsifiable oil, in turn. Add (in principle, do not mix more than three pesticides), mix well with each addition, then add the next one.

It should also be noted that some pesticides cannot be mixed, such as alkaline pesticides such as Bordeaux mixture and stone sulphur mixture, ammonia ji formate, pyrethroid insecticide, thiram, Daisen ring and other dithio ammonia. Formic acid fungicides are prone to reaction and lead to loss of efficacy. Therefore, it is necessary to understand the nature of various pesticides. When purchasing pesticides, ask local agricultural technicians before using them.

Second, pesticide application problems

1. Do not apply pesticides in wind or rain or in hot sun. When applying pesticides in windy conditions, the pesticides will be dispersed. Especially when spraying herbicides, it will easily float on the crops, causing phytotoxicity; pesticides should not be sprayed 3 hours before rain and rainy days, and the effects of rainwater washing are basically absent; The application of pesticides in the hot sun is prone to phytotoxicity. The best application time is no wind or rain, 9-11 am, 3-6 pm.

Tianying Brothers Plant Protection Drone Rice Flight Prevention Operation

2. Do not use expired pesticides. The effect of expired pesticides is reduced, which will result in cost loss.

3. The same pesticide cannot be used for a long time. Attention should be paid to the use of pesticides with different mechanisms of action to avoid drug resistance.

4. Try not to spray pesticides during the flowering period of crops. When the crop is flowering or fruit set, it is easy to produce phytotoxicity by spraying, which reduces the commerciality of the fruit. Therefore, it is necessary to avoid the flowering and young fruit period of the crop, and try to prevent and control before the flowering. If the pests and diseases occur during the flowering period, special medicines should be used for control.

5. Do not spray pesticides before crop harvesting. The residual period of highly toxic pesticides is about 60 days, and the use of such pesticides has been basically restricted. The pesticide residues of low-toxic pesticides are about 15 days. Any crop should be banned before use.

This article URL: Tianying plant protection drone pesticide preparation and application notes

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