How to use pesticide fungicides depends on four factors

Pesticide fungicides are used to control harmful bacteria on agricultural and forestry crops and their products and to regulate plant growth. However, in practical applications, pesticide fungicides, plant growth regulators, etc. should be used according to the instructions for labeling, then Pesticide fungicides have the following factors in order to achieve the best bactericidal effect:
1. Pharmacy factors The main reasons for the effects of pharmaceuticals are the control objects, the quality of the drugs and the concentration of the drugs. The control object of each drug is limited and can only be effective for a certain stage of growth of certain harmful substances or even harmful substances. If the most suitable drug efficacy is not selected according to the control object and different growth period, it will be affected;
The quality of the medicament, the emulsifiable concentrate or the water agent is required to be free from sedimentation and delamination. The emulsifiable concentrate is a transparent oily liquid. The wettable powder requires 99.5% of the powder to pass through the No. 200 mesh without moisture and agglomeration, and the storage should not be too long.
If the concentration of the drug is too high, not only the agent is wasted, but also the drug may be caused. If the concentration is too low, the control effect is affected and the pests and germs are also susceptible to drug resistance.
2. The climatic factors are mainly temperature and rainfall, followed by sunshine, humidity and wind. General crop diseases like dead roots and roots, root rot seedlings, and common diseases such as downy mildew and gray mold, most of which occur in rainy weather with high humidity, which is the most likely to cause disease aggravation and spread. At this time, it should use pesticide fungicides such as carbendazim, chlorpyrifos and pyrimethanil , and it is best to spray in the weather without wind and humidity.
3, the impact of spray quality on the efficacy of the spray is the most commonly used method of application on the fruit tree, requiring a small droplet diameter, high density, so that the liquid can better cover the target, most sprayers are hydraulic pressure to the drug to a certain pressure The nozzle hole is sprayed in a conical shape. If the diameter of the nozzle hole is large, the range is long, but the density of the droplet is small, it is not easy to spray, and the control effect is poor. Since there are quite a few diseases and insects on the back of the leaves, the bacteria or pests must be exposed to the agent to be killed. Therefore, when spraying the fruit tree fungicide and insecticide, spray the inside of the crown and the back of the leaf, then spray the periphery and The top of the crown to avoid leakage or re-spray. It is necessary to divert the nozzle frequently, and do not let the liquid flow down, so as to wet the target.
4, other influencing factors should be put a small amount of water in the spray container after adding the required amount of the drug and then add enough water to fully stir before spraying; wettable powder should first use a small amount of water to adjust the agent into a paste into the spray container Add the required amount of water to the inside and stir it. Do not pour the powder directly into the water or container. The prescription should use clean water from rivers or ponds, without the use of mineral water with high mineral content or fertilizer with high humus content. Other liquids should also be used as soon as possible.
Qingdao Baiheyuan is a professional manufacturer of fungicides, launching a series of pesticide fungicide products, and waiting for the praise of the majority of dealers and farmers.