With the increase of people's awareness of environmental protection and the improvement of health awareness, people are more and more fond of green food. Therefore, biological pesticides known for their pollution-free greenness have attracted more and more attention. This article will give you a detailed introduction to the correct use of biological pesticides.
First, the use of biological pesticides observation days
The use of biological pesticides is greatly affected by environmental factors. Therefore, in practice, it takes a certain time for biological pesticides to be taken from plants to insects to feed or contact with bacteria, and it takes a process from feeding pests to death, which is susceptible to external influence during this period. The most influential factors are temperature, humidity, light and wind. Temperature not only acts on biological insecticide spores, but also on the pest itself, thus affecting the pathogenicity and toxicity of pathogenic microorganisms; humidity has a direct relationship with the propagation and spread of biocide spores, humidity, microbial spore reproduction and Rapid diffusion, easy to infect and kill pests; ultraviolet rays in the sun have a lethal killing effect on spores, so try to avoid strong light when applying, such as better use after 4 pm, wind-to-powder bio- pesticide drift And diffusion has a vital role, the application of powder under the breeze, the best effect.
Second, the use of biological pesticides
The use of biopesticides varies from region to region. China has a vast territory and large regional differences. The south is humid and rainy, and the north and west are dry and rainless. Biological pesticides can only be most effective when they meet the best conditions for their lives. On the one hand, it is necessary to increase the amount of sprayed medicinal water in arid areas, resulting in a high-humidity environment, which is easy to survive and multiply microbial spores; on the other hand, it can add some specific high molecular substances and substances that increase the viscosity of the solution. Such as starch, animal bone glue, grass ash leaching solution, etc., this can reduce evaporation in the deposition solution sprayed by the carrier, thereby avoiding the occurrence of rapid drying, thereby improving the use effect of the biological pesticide.
Third, the use of biological pesticides to observe insects
Pests are the target of biological pesticides. For different types and characteristics of pests, the use of biological pesticides is also different. There are several different developmental stages in the life of the pest, and the resistance to the biological insecticide is different at each development stage. Therefore, it is necessary to understand the development stage of the pest. For example, the life cycle of the cabbage caterpillar can be divided into four different developmental stages: egg, larva, cockroach and moth. The egg stage is protected by egg shells, and the larvae are protected by the corpus callosum. The old larvae have thicker wax layer protection. Winged to fly. Therefore, only when the application of the young larvae is selected, the effect of the biological pesticides can be fully exerted, thereby achieving the requirements of "treating the disease, treating the disease early, and treating it". In addition, different types of bio-insecticides should be used according to the feeding characteristics of pests. For example, BT has a good effect on lepidopteran pests. It is distributed on the surface of plants after spraying, so that the pests feed or touch the medicine, but they suck the juice. Insects (such as mites) are ineffective, and avermectin works very well on aphids.
Fourth, biological pesticide use observation machinery
In practical applications, most spray systems are very inefficient, usually applied directly from the top to the bottom, causing a large amount of pesticides to accumulate on the top leaves of the crop, and other pesticides are lost in the soil, especially When the fog is large, the loss is even greater. At the same time, due to the high cost of biopesticide production, the drug technology should be optimized. It is imperative to use high-performance spraying machinery. If sprayed by mist, the nozzles sprayed with the fan-shaped air nozzles will be small and uniform, which will reduce the potential drift of the spray and make the smaller droplets spray to the expected. Target leaves, thereby improving the efficacy of biological pesticides and reducing production costs.
V. Observational dosage forms for biological pesticides
The control effect of biological pesticides is often closely related to the dosage form and use technology. Therefore, when using biological pesticides, according to the control object, meteorological conditions and the period of use, the correct dosage form should be correctly selected to achieve the maximum control effect. For example, the powder can be dispersed in a wide range by means of air buoyancy and wind, so that it has greater contact with pests. For pests with a large amount of edible leaves, such as cabbage caterpillar, a method of spraying a wettable powder with water to form a suspension can be used. Ok, and the effect of using the dusting method is worse. Capsules not only have a long-term effect, but also protect the pathogens from environmental factors, and can be used in greenhouses.
Sixth, biological pesticide use observation varieties
In the actual use of bio-pesticide, many people do not fully understand the nature of bio-pesticide. They mistakenly believe that bio-insecticides can kill all pests, so they choose to use them indiscriminately. In fact, this will not be acceptable. Some effects, increase production costs, increase the difficulty of prevention, but also delay the prevention period. In fact, biocides are highly specific and have a poor insecticidal spectrum. For example, Bacillus thuringiensis (BT) is effective against lepidopteran larvae, while it is not fatal to the leafhoppers of the same wing, and Bacillus thuringiensis There are also differences in the control of several important pests in different strains. Therefore, suitable biopesticide varieties should be selected in a targeted manner for different target pests.
7. Use of biological pesticides to observe the migration characteristics of pests
In the actual use of bio-pesticide, according to the migratory characteristics of pests, bio-pesticide should be used in combination with high-efficiency, low-toxic and low-residue chemical pesticides, because the addition of low-dose chemical pesticides to bio-pesticide can reduce the resistance of pests. Force, to create conditions for the invasion of pathogenic microorganisms, while the pests are infected by pathogenic microorganisms, and reduce the resistance to chemical pesticides, so that the two complement each other, thus playing a role in synergy.
Have you ever heard about the Video Surveillance System? The Video Surveillance System is an important part of the Security and Protection Camera field, which has brought us great convenience in all kinds of feilds such as the industry, commerce, education,forest protection, animal and plant research, home secuirty and so on.
The Video Surveillance System is the combination of the Video Capture Device(also called the Camera) and the Video Storage Device(also called the Video Recorder), and we usually call this kinds of combination(the Camera&the Video Recorder)as the CCTV Kit/ CCTV kits/ CCTV Cameras Kit/ CCTV Kits UK/ CCTV Kit for Home/ Boat CCTV Kit.
So what are the advantages of the CCTV Kit?
Some people may think it more easier and can save much time and energy if they don't need to combine the Camera and the Video Recorder by themselves, which can also help avoiding some errors for those people who don't know much about this Video Surveillance System but need this kind of products to solve some security problems.
How about the disadvantages of the CCTV kit?
The CCTV kit combination is not so flexible as the what some people need. They may prefer to dividually purchase the Camera and the Video Recorder rather that directly choice the CCTV kit that has be combined by the supplier. To dividually choose the models and parameters of these devices and combine them the way they need, then they can get their own CCTV kit, which can more efficiently solve their actual problems.
What kind of people is the CCTV Kit more suitable for?
The CCTV Kit is more suitable for the people who don't know much about the Video Surveillance System and don't know how to combine them. As for the people who have well handled the Video Surveillance System and can precisly know the parameters and functions of the CCTV Camera and video recorder which can perfectly meet their demand, it would be better for them to combine their own CCTV Kit instead of directly chooing the combined CCTV Kit from the supplier.
CCTV Kit
CCTV kits ,Wireless Nvr Kit,Security Camera Kit,CCTV Camera Kits
SHENZHEN SANAN TECHNOLOGY CO.,LTD , https://www.sanan-cctv.com