Insect pheromones are compounds used by insects to represent various information such as aggregation, foraging, mating, and alerting. They are the chemical molecular language of insect communication. At present, the basic control measures for pests in agricultural production mainly rely on chemical pesticides, but the long-term uncontrolled use of chemical pesticides has brought many side effects. The first is the emergence of pest resistance, which causes the use of drugs and drug concentrations to increase, the cost increases year by year, and the prevention and control of increasingly difficult; the second is to disrupt the ecological balance, while controlling a large number of natural enemies were killed, causing the pupae of secondary pests; Third, it pollutes the environment. A large amount of pesticides remain in crops, soils, rivers, lakes, and seas, and they are enriched in the human body through the form of food chain, causing another harm to humanity. Therefore, relevant research departments in many countries are currently working hard to explore and study new approaches and technologies for pest control. These studies include: the development of new, efficient, environmentally friendly, low-toxic, low-residue chemical pesticides; natural enemy insects and microorganisms The use of pesticides; insect sterilization technology and the application of insect hormones; among them, the research on the use of insect hormones, especially insect sex pheromones for pest control, is receiving increasing attention and attention.
Research on insect pheromone has been developing rapidly. Since the first insect pheromone Bombykol, has been isolated and identified, more than 2,000 insect pheromones and their analogs have been identified and synthesized worldwide, of which more than 100 insect pheromone To achieve commercial production, the production and research of Lepidoptera sex pheromones is the most extensive and comprehensive.
Insect communication, Including Sex pheromone, Collection pheromone,Alert pheromone, Tracking pheromone Taizhou Volsen Chemical Co., Ltd. , https://www.volsenchem.com
(1) Internal box size problem:
Generally, when determining the size, it is necessary to consider the size of the product to be tested and the quantity to be placed. Try to use the large product of Zui as the object. When the test product is placed in the test box for testing, in order to ensure that the atmosphere around the test product can meet the environmental test conditions specified in the test specification, the corresponding specifications should be followed between the work size and the outer dimensions of the test product: test chamber The volume of the studio should be at least 3 to 5 times the external volume of the test product.
(2) Dimensions:
We say that not only must we pay attention to the choice of inner box when purchasing, but the shape is also very important. Because some users (laboratory door frames, elevators, corridors, etc. are too small, the equipment can not enter) is inconvenient. Therefore, the manufacturer will give the user a reasonable solution because the elevator, the corridor, the door frame, etc. are explained in advance with the manufacturer.
Many users are only concerned about temperature and humidity when choosing a constant temperature and humidity test chamber. Of course, temperature and humidity are an important selection criterion, but we can't ignore the size of the equipment! Otherwise it may affect the work or cause unnecessary trouble (trouble: the manufacturer resets the production plan and delays the user's work progress).
In the process of selling the constant temperature and humidity test chamber, the manufacturer will recommend the box size according to the customer's product size, but it is related to some practical problems (the placement of the test items and the final placement of the equipment), which requires the user to arrange it himself. The following are the elements that must be referenced before the selection of the constant temperature and humidity test chamber:
Pheromone is a collective name for compounds that play a role in chemical communication between organisms, and which is the chemical molecular language of insect communication. Including sex pheromone, collection pheromone, alert pheromone, tracking pheromone, altruin, altruin, synergistic pheromone, evacuation pheromone. Pheromones are chemical substances that interact with each other and can affect each other's behavior, habits, and even development and physiological activities. Pheromone is produced by the glands in the body and is directly discharged to the outside. The pheromone is transmitted to other individuals by means of air, water and other conductive media. Pheromones are found in lower animals and higher mammals. Because the pheromone is transmitted by the external environment, it is also called pheromone. Chemical substances that interact between different species are called interspecies pheromones or heteropheres.