The four pests that are often said in life are

The four pests were mosquitoes, flies, rats, and cockroaches.

The Four Pests Removal Company was a company that specialized in indoor and outdoor environmental disinfection, pest control, termite control, and other services. These companies provided disinfection services such as killing rats, cockroaches, fleas, lice, and termites, as well as comprehensive services such as prevention, control, disinfection, and technical consultation. According to the information provided, there were some companies that provided pest control services in different regions, such as Hangzhou, Shen Zhen, Zhongshan, Xia Men, and Chong Qing. These companies usually had the qualifications and equipment to provide high-quality pest management services. However, it was impossible to determine which company had the best service because the information provided did not mention specific customer reviews or survey results.

The four pests referred to flies, mosquitoes, rats, and cockroaches.

The role of the four pests elimination included the following aspects: First, the four pests elimination could maintain the physical and mental health of humans. The four pests carried all kinds of germs. They appeared in the environment where humans lived. By eliminating them, they could prevent the germs from spreading to humans and protect people's physical and mental health. Secondly, the elimination of the four pests could avoid the loss of food crops. Rats were the most harmful of the four pests to food. They damaged or contaminated a large number of food crops every year, causing serious economic losses to human society and even restricting the development of society. By insisting on eliminating the four pests, they could control their numbers to the greatest extent and reduce economic losses. In addition, eliminating the four pests could also improve the quality of life. The four pests caused serious harassment to humans. If the density of the four pests in a certain area was too high, it meant that the living environment of the people in that area was poor, and it had a greater impact on people's lives and moods. Only by killing them completely could they effectively improve people's quality of life and happiness. Finally, the elimination of the four pests could promote the orderly development of society. The existence of the four pests would have a certain impact on social order and economic development. By eliminating the four pests, a better social environment could be created and the orderly development of society could be promoted. To sum up, the elimination of the four pests was of great significance for maintaining public health, improving the living environment, protecting agriculture and food safety, and promoting social development.

The new four pests were flies, mosquitoes, rats, and cockroaches.

The Four Pests Disinfection Technique referred to the technical methods to eliminate and control the four pests, including mosquitoes, flies, rats, and cockroaches. We can get some information about the technology of eliminating the four pests. For example, the breeding grounds of the four pests could be reduced through environmental renovation, such as regularly cleaning up garbage, repairing cracks, and keeping the room dry. In addition, drugs could also be used to kill, such as the use of safe, efficient, non-secondary poisoning chronic blood clot rodenticide, efficient, residual pesticide, etc. However, the search results provided did not describe in detail the specific methods and steps of the Four Pests Elimination Technique. Therefore, for more detailed technical information on the elimination of the four pests, it is recommended to consult a professional elimination company or experts in related fields.

The precautions for killing the four pests included choosing the appropriate killing method, paying attention to the safe use of killing tools, following the correct operation steps, paying attention to personal protection, and killing regularly. These precautions were the key to ensuring the killing effect and the safety of the personnel. When killing the four pests, appropriate killing methods should be selected according to different types and quantities, and attention should be paid to the safe use of killing tools to avoid harm to the human body. At the same time, when using killing tools or drugs, the correct operation steps should be followed to avoid affecting the killing effect or causing environmental pollution. In addition, when killing the four pests, attention should be paid to personal protection, such as wearing masks, gloves and other protective equipment to avoid harm to the human body. Finally, in order to maintain the cleanliness of the family environment, the four pests should be eliminated regularly, and timely measures should be taken to eliminate the number and activities of the four pests in the family.

The requirements for the elimination of the four pests included the elimination of rats, mosquitoes, flies, and cockroaches. The following standard requirements: 1. Rodent control standards: - In a standard room of 15 square meters, the positive powder did not exceed 3%. - Less than 2% of the rooms had traces of rat holes, rat feces, and rat bites. - Less than 5% of the anti-rat facilities in key units are unqualified. - Different types of external environments accumulated to 2000 meters, and there were no more than five rat tracks. 2. Anti-mosquito standard: - The positive rate of mosquito larvae and pupas in various water containers and accumulated water in residential buildings and the environment inside and outside the unit should not exceed 3%. - The positive rate of mosquito larvae or pupas collected from large and medium-sized water bodies in Urban area areas with 500ml scoops should not exceed 3%, and the average number of larvae or pupas in the positive scoops should not exceed 5. - In special places, the average number of adult mosquitoes captured per person was no more than one. 3. Fly killing standard: - There were no flies in the food and beverage industries, and less than 3% of the rooms in other industries and residential houses had flies. - The detection rate of maggots or pupas of flies should not exceed 2% in units and households, and should not exceed 5% in public places. 4. Cockroach extermination standard: - Less than 3% of the rooms had cockroach adults and nymphs. - On average, there were no more than 5 cockroaches and 10 cockroaches in each positive room. - Less than 2% of the rooms had live cockroach egg sheaths. - Less than 5% of the rooms had cockroach feces, molting, and other traces of cockroaches. It should be noted that the above standard requirements may be incomplete or missing, so it is recommended to consult more authoritative materials to obtain comprehensive and accurate information.

You can find handwritten pictures of the four pests. These handwritten pictures could be used to show the theme of getting rid of the four pests, including flies, mosquitoes, rats, and cockroaches. The content of the handwritten newspaper could be designed according to personal preferences and creativity. Elements such as grass, trees, and buildings could be drawn, and different colors could be used to color it. However, the specific content and style of the handwritten newspaper needed to be designed according to one's creativity, so no specific handwritten newspaper pictures were provided.

There was no fixed standard for the frequency of eliminating the four pests. The frequency of killing usually depended on the type and number of pests, as well as environmental conditions and hygiene. Generally speaking, for common pests such as rats, mosquitoes, flies, and cockroaches, killing them two to three times a week was a common frequency. If the pest problem is particularly serious, you may need to increase the frequency of killing, such as once or more per day. If the pest problem was not too serious, it might only need to be killed once or twice a month. In addition, the method of killing, the use of drugs and the professional level of the killing personnel would also affect the frequency of killing. In short, the frequency of elimination of the four pests should be determined according to the actual situation and could be determined according to local experience and practices. If you are not sure about the specific frequency, you can consult a professional.