The use of pesticides to control pests in crops must achieve the best insecticidal effect. In addition, they must select appropriate drugs and appropriate drugs at the same time, based on the factors that affect the efficacy, and pay attention to timely application and drug delivery. These two are easily overlooked. The problem. There are two things to do when applying insecticides.
First, according to the climate characteristics and pests of day and night activities, choose to apply drugs at favorable times.
The pesticide application time is preferably between 9:00 am and 4:00 pm. Because after 9 o'clock in the morning, the dew on the leaves of the crops has dried up. It is also the time when the sunrise pests are most active. At this time, the application of pesticides will not affect the control effect due to dew liquid, but also make direct contact between pests and pesticides, increasing the chance of insect poisoning. After 4 pm, the light weakens, and it is during the flight and nocturnal pests that they are about to move. At this time, the pesticide is applied and the pesticide can be applied to the crop in advance. When the pests move out or feed at dusk and at night It can cause death by exposure to venom or feeding poisoning, and it can also avoid evaporation loss and photolysis failure.
Second, according to the pest's damage location, choose different agents and take different methods of drug delivery, drug delivery in place.
For pests that injure the roots, the pesticide is applied to the roots or in the sowing trenches; the pests feeding on the back of the leaves spray the liquid on the opposite side of the leaves; the control of the pink bollworm and the cotton bollworm is treated with medicine. To the buds, bells, and on the tip of the group; prevention and control of aphids caused by dead heart seedlings to spread poisonous soil; prevention and control of white spikes on the spray or splashing; prevention of rice planthoppers, rice leafhoppers will spray liquid to the base of rice plants; Spodoptera litura sprayed liquid buds and larvae. In addition, hidden insects such as cotton aphid, red spider, rice planthopper, and rice leafhopper, etc., can be absorbed by insecticides with strong systemic absorption and transmitted to other parts of the plant according to their sucking and sucking mouthparts. To achieve the purpose of drug delivery.
Round type sugical lamp is the most matured LED lamp in all LED series, it has producted for many years and exported to many countries, just like USA, UK, India, Italy, Thailand and other countries in the workd, almost zera maintainance rate, customers all give good feedback. the surgical lamp has the function of Clear lighting field; Outstanding color rendering index; Convenient removable sterilize handle; Control panel can choose touch screen control panel or normal control panel; it also has excellent color temperature adjustable technology; the operating lamp also can add HD camera system which is medical grade; for this OT lamp, it has ceiling type, wall type and mobile type; ceiling type can choose single dome, double dome or add camera system;
ot light,operation theatre light,operating light,operating room light,surgery light,surgicai lamp,Led ot light
Shandong Lewin Medical Equipment Co., Ltd. , https://www.lewinmed.com