Tattoo Needles,Sterile Tattoo Needle,Tattoo Supply Kiay Trade Cosmetology Co., Ltd. , http://www.chinatattoomachines.com
The principle of rodent control should be followed (1)
Rats steal food, feed, and other food; destroy buildings, furniture, clothing, books; spread zoonotic diseases, can carry more than 200 kinds of pathogens, 57 of which can cause diseases; rodents can damage the circuit and cause fires. The digging of dams caused flooding; in some cases, they also bite people. For example, the incomplete statistics of the population of Yanhua County in Xingzi County had more than 30 people bitten by their hands, ears and ears. One of the infants was bitten by the rat and died of his eyes. So, "The rat crosses the street and everyone shouts." The rodent was so severe. Why did it not fight for thousands of years? This is mainly due to: 1) Rats have strong adaptability, are sensitive to reactions, are good at hiding, and are very difficult to clean up. Populations are wiped out after a batch of batches and soon reproduce; 2 people don’t know enough about the ecological characteristics of rodents, and rodent control methods are not ideal The organization is not strict enough to solve the problem fundamentally. For a long time, it has been in a state of being stopped and stopped. It is a long-term task to eradicate pests, prevent diseases, and reduce economic losses. It cannot be done once and for all. The current goal is: to work together to scientifically eradicate rats and keep the number of rodent pests at a minimum. According to many years of practical experience and scientific research in the past 10 years, it is fully possible to reduce or even eliminate rodent pests through hard work. However, the following four principles must be followed to eradicate rats: 1. Comprehensive control of past rodents is unsatisfactory The main reason is that the palliative treatment is not a cure, and the means are simple. In many places, only the chemical (rat poison) method is used, and the effect is getting worse. Rats breed quickly and have strong adaptability. Although people put poisonous baits to kill a group of rats, they always leave some. These mice use the more adequate food and more spacious covert conditions to quickly breed offspring. There is also the migration of the surrounding rodents. The density of rodents around rodent control areas is relatively high, and food is in short supply and crowded. It quickly migrates to low density areas and rapidly breeds offspring. Rats generally have an annual output of 3 to 4 tires, more than 7 to 8 tires, 5 to 7 litters per litter, many more than 10. Taking 1 pair of Rattus norvegicus as an example, generally from May to September, it is the prosperous period of breeding. The average number of births is 8 to 10 per litter and the maximum number is 16. If 1 year produces 4 tires, the average litter size of 6 per litter is calculated. Twenty-four young pigs can be born in 1 year; in the first and second generation young rats, the sex ratio is 1:1, the first generation pups can also breed 2 children, and the second generation pups can also breed 1 child. The fourth-generation pups are generally not breeding this year; the first generation increased by 144 and the second generation increased by 432. In this way, the population of one pair of Rattus norvegicus can increase to 600 in one year, an increase of 300 times; if the death is considered, the population can also increase by 30 times in one year. In order to control the breeding of rodents and prevent the intrusion (entry) of rodents, rodent control should be a permanent cure, that is, comprehensive management with ecological control as the core is the fundamental way to eradicate rats. The specific measures are based on the natural ecological characteristics of the regions and the pest population and community ecological characteristics. Such as remediation of the environment, the control of rat food, destroying the roosting habitat (building nest nest) conditions, you can reduce the local rat tolerance, and often change rodent methods, so that the mouse is difficult to adapt to achieve a lasting control of the rodent . (Department of Zoology, Jiangxi Academy of Sciences, Liao Yingchun, Dai Nianhua, Luo Xiaoyan, Ren Bengen)