How Do I Become an Exterminator?

Hygienic insecticide refers to the agent that is mainly used in the public health field to control vector organisms and pests that affect people's lives. It mainly includes agents for controlling vector organisms and pests such as mosquitoes, flies, fleas, cockroaches, mites, ticks, ants and rats. These pesticides are different from pesticides that protect agricultural and forestry crops and kill agricultural and forestry pests. Sanitary pesticides directly affect the environment in which humans live, and some even come into contact with people for a long time (such as indoor space sprays, Residual sprays, e, mosquito net soaking agents, etc.), the object of protection is people. ^[1]

In addition to the requirements for agricultural and forestry pesticides, there are higher requirements for sanitary pesticides:

Toxicity requirements are high. The preparation has acute oral LD50> 5000mg / kg body weight, transdermal LD50> 2000mg / kg body weight, inhaled LC50> 10000mg / m3 (1h) in rats; no obvious irritation to skin and eyes, no sensitization effect; no genetic Toxicity or mutagenic effect, no delayed neurotoxicity; therefore, most of the current health insecticides are of low toxicity, and a few are of moderate toxicity.

Can degrade in the environment for a certain period of time without polluting the environment;

The active ingredient (purity) of the preparation is more than 90%, without odor. Because most pesticides are harmful to humans due to the impurities they contain, some pesticides used in agriculture and sanitation, such as fenaxyl, malathion, etc., must be refined, purified, and made. Only when the high purity is substantially free of impurities and no obvious irritation is the control of sanitary pests allowed.

Due to the high content of the active ingredient of the insecticidal original medicine, except for a few species that can be directly used for fumigation or ultra-low-volume spraying, it is rarely used directly and needs to be processed into various dosage forms before use. The purpose of dosage form processing: (1) improve the physical properties of pesticides to suit different places and different control objects; (2) improve the efficacy and safety; (3) delay the development of drug resistance and extend the life of drugs, Expand the scope of use; (4) Enhance the market competitiveness of products. The formulations currently produced and used in our province include the following: powders, wettable powders, suspensions, sprays (including oils, tinctures, aqueous emulsions, emulsifiable concentrates), aerosols, disc mosquito coils, electric mosquito coils, poison baits , Sticky trapping agent, smoke agent, insect repellent paint repellent.

Actually, sanitary pesticides are the same as pesticide pesticides, and the original drugs cannot be used directly. Need to be converted to a dosage form before use. Hygienic pesticide formulations refer to different forms of use through a certain processing process, have specific physical and chemical properties, different degrees of dispersion, and are convenient for use under different conditions. This is the so-called dosage form. Dosage forms can be divided into solid, semi-solid, and liquid according to their physical state. Common solid dosage forms are: powders, granules, wettable powders, granules, soluble powders, poison baits, cigarettes, mosquito coils, etc. The liquid is: aerosol, oil, emulsifiable concentrate and so on. The semi-solid dosage forms of sanitary insecticides are: pastes, smears, etc. Is it dazzling to see so many dosage forms, but with the advancement of science and technology, a lot of new formulations have been developed for hygienic pesticides, let us understand below.

With the improvement of people's living standards, the continuous development of science and technology, and the enhancement of people's awareness of environmental protection, sanitary pesticides have become more and more important to the people. It has become a tool for people to kill pests and a necessity in life. Its quality is related to people's health and safety. Therefore, people have higher requirements on the quality and application methods of sanitary pesticides, and sanitary pesticides have also developed in the direction of high quality, diversified dosage forms and multiple varieties. Tend to be refined and diversified. Therefore, many new dosage forms have appeared in recent years, such as ultra-low-volume agents, water emulsions, electrothermal mosquito coils, electrothermal liquid mosquito coils, electrothermal solid-liquid mosquito coils, and sustained-release agents. So how to choose a pesticide?

The choice of sanitary insecticides is mainly selected through the aspects of insecticide formulation, type, dosage and concentration. There are many types of sanitary insecticides on the market, but the daily use of insecticides should still be based on pyrethroids. Esters are mainly because of their broad insecticidal spectrum, high efficacy, low toxicity, easy biodegradation, and no toxic residue after biodegradation. So it's safer.

Hot weather and nasty mosquitoes also follow. Mosquito repellent becomes a big problem for people in summer. Insecticide aerosols have become the first choice for people to repel mosquitoes, which are necessary for almost every household. Insecticide aerosols have become an indispensable daily necessities in people's homes. With the development of current science and technology, there are many types of insecticides, and their insecticidal effects are also different. How can we find mosquito repellent products suitable for ourselves among so many insecticides. What are the advantages and disadvantages of so many mosquito repellent products? How should we use them to be safe? Let the experts analyze and answer this question for us.

There are many mosquito repellent products on the market today, and they are dazzling. Pesticides have become a must-have in our lives. The quality of pesticides has a bearing on our health. Pesticides sold on the market are marked with "low toxicity" and "micro toxicity". Kill these abominable mosquitoes, but the ingredients of the pesticides contain flammable substances. Use pesticides with caution. The pesticides should be kept away from fire sources when they are used to prevent the pesticides from turning into spray guns and causing serious consequences. Although the pesticides are marked for use away from sources of fire, many citizens are skeptical of this. They do not understand this. Will pesticides really become spitfires when they encounter real fire? Then those ingredients of the pesticides encounter open flames. Will it burn? Let the experts answer it for us.

Experts said: After research and analysis, the pressure pesticide, its pesticide composition will be contained in some organic solvents, and these organic solvents are some aliphatic hydrocarbons, low-level components like liquefied gas, such as kerosene gasoline Such a substance can distribute the pesticide ingredients evenly, and the insecticidal effect is effectively improved, and the insecticidal effect is guaranteed. In fact, these low-level aliphatic hydrocarbons are important for causing the insecticide to become a lance. factor. These are flammable and explosive chemicals that burn when they encounter sparks or electric sparks. Especially when it comes to electric sparks, it can cause an explosion. It should not be exposed to the sun and away from high temperature. Especially for new products, the pressure is very high, and it will cause expansion and explosion or safety accidents when encountering high temperatures. There are also accidents caused by such high temperatures when using firewood in rural areas and cars. These are all caused by careless use. of.

First of all, we need to understand what aerosol technology is. Aerosol technology is a complex and multidisciplinary comprehensive technology. It is not simply a combination of a container and a propellant with the effective ingredients of insecticides. Insecticides Need to consider aerosol product integrity. Because this is related to the effectiveness, safety and economics of pesticide use, the most important thing is that pesticides need the World Health Organization's regulations on pesticide toxicity. Pesticides have become a must-have for home life, and its quality is related to people's health.

For the quality evaluation of pesticide products, comprehensive evaluation needs to be made from the three major aspects of the product's physical and chemical properties, safety, and biological effects. A small part of traditional medicines, such as mineral oil emulsions, are mainly reflected in the physical function of the pest's surface. Most organic synthetic pesticides can enter the pest's body and can interfere with normal physiological and biochemical reactions at certain locations, becoming The way to enter the body of the pest, enter the digestive tract, penetrate into the blood and chemical reactions with various enzymes in the body. To achieve the purpose of pest control.

In order to use it safely, before using pesticides, we should seal all food, water and cupboards in the home. Spraying is best done after meals to avoid contamination. All protective measures should be taken before use. Wear a mask, and it is best to wear long-sleeved clothing to prevent skin or respiratory tract poisoning. Insecticides should be used in an appropriate amount without overdosing and easily cause poisoning. Leave as soon as possible after spraying, and open doors and windows to ventilate after half an hour. In addition, do not spray it directly into the fire source to avoid danger.

However, you must pay attention to the use of pesticides. Currently, pesticides sold on the market are marked with "low toxicity" and "micro toxicity". Although they are only slightly toxic, you must be careful when using them. There are asthma patients in the home People with allergic signs should use pesticides with caution. Avoid pesticides when using pesticides. Be sure to leave as soon as possible after spraying pesticides. Open doors and windows in a timely manner and ventilate after half an hour. He should be allowed to leave the place where the pesticide was used in time to breathe fresh air, and he should be immediately sent to the hospital for treatment.