Insecticide manufacturers' precautions for insecticides
When we need to kill pests at home, we need to choose environmentally friendly and effective pesticides in the market. In fact, there are many brands of such products on the market. When we understand the principle of insecticidal, we must be careful. Analysis, so that we can find low-toxic, environmentally friendly, green and healthy pesticides.
The production methods of pesticides mainly include liquid submerged fermentation and semi-solid fermentation. Two-step production is an effective, simple and practical pesticide production technology summed up by improving, perfecting and creating on the basis of semi-solid fermentation method. The promotion in rural small and medium-sized enterprises can greatly reduce the production cost of pesticides and play a positive role in the development of microbial pesticides.
In field application, to ensure the quality of pesticides, it is necessary to meet the temperature conditions for the rapid growth of Bt bacteria. The higher the temperature, the stronger the pathogenicity. To avoid strong sunlight, because ultraviolet rays will cause damage to Bt bacteria, it is best to apply after 4 pm.
Pay attention to the living habits and sensitivities of the target pests, the host crops and environmental conditions, and the application of synergists. For example, the control of borer pests should be applied 2-3 times during the egg hatching period, especially for borers, the control effect is good. Once the borer bores into the stem, the control effect is poor. The control of corn borer must be strictly controlled at the end of the corn core and leaves, in order to receive good results. The control of cotton bollworm should be controlled 2 to 3 days after the peak of ovulation, and the effect is remarkable. The masses have the experience of controlling insects but not seeing insects, and not destroying insects by egg-beating. In this way, when the larvae hatch, they will eat the insecticide as soon as they bite the egg shell, and they will soon die of poisoning. Insecticide manufacturers B2 insecticide residual period is generally up to 7 days to 10 days. If it rains after application, the rain will wash away the liquid and should be re-sprayed.
