Vegetable medicine should be applied in a timely manner

First, timely medication. This is the key to rational drug use. According to the different types of pests and diseases of vegetables, first select the applicable pesticide species, and then consider the optimal period of application. 1. According to the different characteristics of each growth period of pests, timely medication. Vegetable insect pests increase with the age of insects, and their drug resistance also gradually increases. The optimum period of pesticide pesticide application should be before the third stage of larval period; for borers, such as Helicoverpa armigera, borerworm, spotted fly, onion thrips, etc. should be used during the peak period of egg hatching, adult stage can be used Lure trapping, the effect is obvious. 2. Choose the best medication period according to different climates. The control effect of pesticides is closely related to the level of temperature, such as trichlorfon, dimethoate and phoxim, and the control effect will increase with increasing temperature within a certain temperature range. Such pesticides should be used at higher temperatures; Pyrethroid insecticides such as kungfu, profluthrin, bifenthrin, cyfluthrin, etc., have better control effects at lower temperatures. Such pesticides should be used in the morning and evening; insecticides, fungicides, herbicides, and growth regulators with endotracheal transport function, when the light in the field is weak, the temperature is low, and the relative humidity of the air begins to rise, the pharmaceutical agent Less volatile, better control effect. Such pesticides should be used in the afternoon or evening; microbiological insecticides are sensitive to light and humidity and should be selected when there is more fog or more dew. According to the characteristics of different diseases caused by the diseases of vegetables, the best period of use of fungicides was selected. It should be used for prevention and treatment before the diseases are most seriously harmed and the yield loss is heavier. When applying a protective bactericide, the drug should be applied before the bacteria infect the crop. Such as vegetable virus disease, it is difficult to control after onset, it is best to prevent medication before the onset of disease. 4. Select the best time based on the effect of cultivation management after medication. When using drugs in winter greenhouses, in order to maintain the temperature of the greenhouse and reduce the humidity of the air, medications should be taken on sunny mornings or at noon to facilitate air release and dehumidification; cultivation of open-air vegetables should be avoided to prevent the use of drugs before rain and prevent the rain from diluting the liquid. Second, the law of medication. At present, pesticides produced at home and abroad are mainly based on emulsifiable concentrates; bactericides and herbicides are mainly based on WP. At present, spraying is the main method of application, followed by seed dressing, dusting, dusting, and soil poisoning. 1. Control of underground pests. Available dressing, baits, poisonous soil, irrigation roots, soil treatment and other methods. 2. Prevent seed from bacteria. The seed can be treated with medicaments, soaked in warm soup, and the like. 3. Medication in protected land production. Spray and ignite aerosols are commonly used. The smog method is better than the spray method. The smog method has the advantages of convenient use, uniform application, good quick effect, timely prevention and control, high utilization rate, and no increase of air humidity. 4. The characteristics of different pests are different, and the location of medication is different. Such as vegetables, downy mildew, gray mold, disease, powdery mildew, scab, black mold, Penicillium and rust, spray should focus on the back of the spray; anthrax, ring disease, leaf blight Leaf rot and spot disease, etc., should be focused on the front of the spray. 5. Try to enhance the effectiveness of pesticide control. Such as adding 0.3% of salt in pesticides; in the avermectin series of pesticides by adding the right amount of copper, can enhance the penetration of pesticides, killing more powerful Liriomyza. Adding 0.5% white sugar to matrine is more beneficial for the elimination of whitefly.

Microcirculation Microscope:

The micro circulation is one of life basic characteristics, and is that the organism unceasingly carries on the matter, the energy and information transmission with the environment. The unicellular organism directly carries on transmission through the cell membrane, the extremity animal is carries on the transmission through the organization gap in blood lymph, but because of evolving to the mammal stage (for example human being), only has the lung ,the stomach and intestines separately carry on material, the energy, the information transmission through the trachea and the esophagus with the external environment, other organized the organ`s position, the function, the metabolism already to finalize, constitutes the organization and the cell of the organ, cannot be direct with the external environment communication, only through tissue fluid, the blood, and the lymph carry on material, the energy, the information transmission.

The Nailfold Capillaroscopy Microcirculation Microscope is an advance medical photoelectric apparatus,equipped with built in special LED light source,used mainly in observation on human nail fold capillary microcirculation or term as video Nailfold capillaroscopy,Such as capillary blood flow, abnormal microcirculation of the vascular structure, cell adhesion, through its powerful 380X(or 240X)optical magnification. Undistorted, real time dynamic video streaming via Sony CCD imaging device onto the LCD monitor screen.

Simply insert the finger to the holder below the optical lens apparatus, fine-tune to fix the focal length and uncover the desired images within seconds.Blood capilliary microcirculation microscope is a non-invasive diagnostic tools, which is gaining large credit among physicians of different specialities in for study of skin blood capilliary network.

8 Inch Micirculation Microscope

Handheld Microscope,8 Inch Micirculation Microscope,Microcirculation Detector,Nailfold Micirculation Microscope

Shenzhen Guangyang Zhongkang Technology Co., Ltd , http://www.lighttherapymachine.com