One avoids spraying when the temperature is too high. Some farmers think that the higher the temperature, the better insecticidal effect of spraying pesticides is, in fact, not the case. When spraying at high temperature and strong light, most of the pests stop their activities and hide in cool and shaded areas. The pesticides are not easily sprayed into place. Moreover, the loss of pesticides is high and the decomposition of pesticides is rapid at high temperatures. Therefore, the efficacy of spraying is reduced at this time. In addition. Spraying when the temperature is too high, due to the volatile agent, it is easy to cause poisoning to the operator.
Second, avoid spraying when dew does not dry. Some farmers like to spray medicine when they are cool in the morning. However, due to the fact that the dew had not dried in the morning, diluting the drug with dew after spraying would reduce the efficacy of the drug. At this time, the pests did not move out and the insecticidal effect was not satisfactory.
Three bogey liquid concentration is too high. Many farmers are trying to save trouble and spraying less water during the high summer season. The concentration of the liquid is too high. After the liquid is sprayed on the foliage of the crop, the moisture will evaporate quickly and cause injury.
Four bogey without protection spraying. Some farmers are cool when spraying in the summer, do not take any protective measures, and sometimes even "bare shirts", this can easily cause the skin to absorb pesticides and poisoning.
For the above problems, during the summer spraying, one should select cloudy or sunny days from 8:00 to 10:00 am (after the dew is dry), and from 5:00 to 7:00 pm (before and after sunset), spraying pesticides when the pests are active. : The second is to increase the amount of water to ensure that the 667m2 dose is above 45kg. Third, it is necessary to wear protective clothing and masks when spraying. Clean the whole body after spraying to prevent pesticide poisoning.
Second, avoid spraying when dew does not dry. Some farmers like to spray medicine when they are cool in the morning. However, due to the fact that the dew had not dried in the morning, diluting the drug with dew after spraying would reduce the efficacy of the drug. At this time, the pests did not move out and the insecticidal effect was not satisfactory.
Three bogey liquid concentration is too high. Many farmers are trying to save trouble and spraying less water during the high summer season. The concentration of the liquid is too high. After the liquid is sprayed on the foliage of the crop, the moisture will evaporate quickly and cause injury.
Four bogey without protection spraying. Some farmers are cool when spraying in the summer, do not take any protective measures, and sometimes even "bare shirts", this can easily cause the skin to absorb pesticides and poisoning.
For the above problems, during the summer spraying, one should select cloudy or sunny days from 8:00 to 10:00 am (after the dew is dry), and from 5:00 to 7:00 pm (before and after sunset), spraying pesticides when the pests are active. : The second is to increase the amount of water to ensure that the 667m2 dose is above 45kg. Third, it is necessary to wear protective clothing and masks when spraying. Clean the whole body after spraying to prevent pesticide poisoning.
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