Cross-use pesticides
What are the cross-use modes of agricultural pesticide use? Experts believe that there are four common modes of pesticide crossover:
1. Cross-use between biogenic pesticides, mineral-origin pesticides, and organic synthetic pesticides. For the control of cabbage caterpillars on Chinese cabbage production, Bt emulsion, rattan extract, diflubenzuron, permanthrin and trichlorfon can be used interchangeably.
2. Cross-use of protective agents and systemic agents. For example, for the downy mildew of vegetables, pesticides to be used before and after the onset of disease should be different and need to be used interchangeably.
3. Cross-use of sprays and smoke fumes. In ensuring the normal production of vegetables, we should be good at using the characteristics of good confinedness of greenhouses and plastic sheds. In addition to the commonly used spray methods, we can use cross-cutting methods of smoking.
4. Cross-use of other forms of agents. When pesticides are used, the stem and leaf treatments of pesticides are used in cross-over with soil treatments; insecticides without ovicidal activity are used in cross-over with ovicides.
The rational use of mixed pesticides can save manpower and time, but also achieve the purpose of concurrent treatment, increase efficiency and delay drug resistance.
At the same time, however, Zou Zhirong reminded the growers that the pesticide mix should be based on the combination of physical and chemical properties that will not destroy the original physical and chemical properties, and the prevention and control effects will not interfere or increase. When using pesticides in combination, it should be noted that fungi-based biological pesticides and chemical fungicides cannot be used together; organophosphorus pesticides, pyrethroid insecticides, and dithiocarbamate fungicides cannot be mixed with alkaline pesticides; similar in nature Pesticides cannot be mixed.
Mercury-free Glass Thermometer
Product name: Mercury-free glass Thermometer
Product use: used to measure the body temperature of the human body under the armpit or oral cavity
Composition structure: composed of glass tube material and gallium-based liquid alloy
Product performance: It has a temperature measuring point structure, measuring range: 35℃~42℃, tolerance of indication: +0.1℃~-0.15℃
1. Clear scale: adopts internal standard cardboard design, reading on the front, and the scale is clear and easy to read.
2. Environmental protection materials: using gallium indium tin liquid metal to replace traditional mercury (mercury), truly safe and non-toxic
3. Equipped with a throwing meter, it saves effort to use the throwing meter, and it is convenient to reset the normal throwing meter, and each one is equipped
4. The product includes: four-layer combination of temperature-sensitive bubble, scale plate, glass sleeve, inner core tube, rigorous structure, safe and secure
Mercury-free glass thermometer, internal standard thermometer, gallium indium tin liquid thermometer
Suzhou Xuanweicheng Biotechnology Co., Ltd , https://www.xwc-medical.com