The efficacy of pesticides is also related to the air temperature. The winter weather is relatively cold. Therefore, special attention should be paid to the use of pesticides. The correct method of use should be used. It is best to use high temperature during the winter use of pesticides. Let's take a look at the effects of the insects.
Spraying at high temperature can improve the efficacy of pesticides
During the high temperature in winter, the feeding rate and respiratory intensity of the pests are greater than usual. At this time, the medicine can bring the liquid into the pests, which is beneficial to the poisoning effect.
Appropriate increase in dose to improve efficacy
It can be quantified according to the temperature of the temperature, but it can not exceed 50% of the conventional dosage, and water should be added strictly according to the dilution factor, and cannot be changed at will.
Choose winter special pesticides
Stomach poisons and contact agents such as deltamethrin, phoxim, stone sulphur mixture, etc., are less affected by temperature and can exert better insecticidal effects; while systemic and fumigants such as enemy killing, dichlorvos, etc. Pesticide, low temperature will obviously affect its insecticidal effect, so it is necessary to confirm when selecting pesticides.
Priority is given to the use of soil pesticides. In winter, the general crops are in a dormant period and have strong drug resistance. Therefore, pesticides such as Bordeaux mixture and stone sulfur mixture can be used to control pests, which is economical and effective.
Three misunderstandings of pesticide use
The pesticide content is not as high as possible
When farmers choose pesticides, they tend to think that the higher the content, the better, but in actual use, to achieve the same effect, the absolute amount of active ingredients should be increased. Mainly because there is no low cost of various additives, although the price is cheap, but the effect is not worth the candle and should not be promoted.
The faster the pesticide works, the better
Any pesticide has its mechanism of action. However, in order to pursue rapid drug efficacy, many products have added hidden components to highlight the effects of the products, especially the safety and environmental risks brought by the addition of prohibited pesticides.
Do not change the amount of pesticides at will
Excessive, excessive and excessive frequency of pesticides will bring many problems, which will cause waste, increase the resistance of pests and diseases to pesticides, and easily lead to excessive pesticide residues. Therefore, the dosage can not be changed arbitrarily, and it should be strictly used according to the dosage on the pesticide instruction manual.
The use of pesticides is not as simple as you think. You must master scientific methods. If you want to know more about pesticides, please pay attention to China's pesticide network.
phenylthiophosphonic dichloride Basic Information
Product Name: Phenylthiophosphonic Dichloride
CAS: 3497-00-5
MF: C6H5Cl2PS
MW: 211.05
Mol File: 3497-00-5.mol
Phenylthiophosphonic Dichloride Structure
Melting point 76-77 °C
Boiling point 270 °C
density 1,4 g/cm3
refractive index 1.6178-1.6182
Phenylthiophosphonic Dichloride CAS No.3497-00-5
phenylthio phosphonic dichloride,phenylthiophosphonic dichloride,Dichlorophenylphosphine sulfide
ShanDong YingLang Chemical Co.,LTD , https://www.sdylhgtrade.com