Six prominent features of biological pesticides can alleviate pest resistance
In addition to having the characteristics of traditional bio-pesticides pesticides, but also have less pollution, injury and low, so in addition, bio-pesticides which also has a prominent feature? Here Xiaobian take a look at it Pesticide Network .
(1) Strong specificity and high activity. In biological pesticides, natural enemy insects and predatory mites are often oligophagous or obligate parasites; entomopathogenic fungi, bacteria, nematodes, viruses, microsporidia, etc. are all isolated from susceptible insects and artificially propagated to Insects; plant-based pesticides are targeted to the reorganization or transformation of a specific functional gene in living plants; biochemical pesticides are also more specific, such as insect sex pheromones only effective for the same species of insects .
(2) Relative to the safety of the environment, mammals and non-target organisms. Biological pesticides are naturally occurring living organisms or compounds that naturally metabolize in the environment, participate in energy and material circulation, are not easy to produce residues, and cause bioaccumulation. Biological pesticides are living organisms, which are safer for mammals because of their strong specificity.
(3) The mode of action is specific. Biological pesticides can play a role in controlling target pests through predation, parasitism, and antagonism. Pheromone biochemical pesticides mainly act by attracting, avoiding, and aggregating. Biological pesticides such as proteins or sugar elicitors can avoid or attenuate the effects of harmful organisms by inducing resistance to host plants. In addition to the same mode of action (contact, stomach poisoning, fumigation), plant-derived insecticides also exhibit specific effects such as antifeeding, inhibiting growth and development, avoiding, avoiding spawning, anesthesia, and inhibiting population formation. The mode of action, and often the same pesticide has multiple modes of action.
(4) The mechanism of action is different from conventional pesticides. Traditional insecticides are mostly nerve agents, and the mechanism of action of biological pesticides, especially biochemical pesticides, is more complicated. For example, azadirachtin has strong antifeedant, stomach poisoning, contact and growth inhibition activities, and its mechanism of action is mainly to interfere with the insect's allelopathy system and affect its behavior; disturb the insect endocrine system and affect its growth and development; Systemic effects lead to insects, systemic physiological lesions.
(5) Synergistic effects of various components make it difficult for pests to develop drug resistance. Long-term use of chemical pesticides can cause pest resistance. Biological pesticides, especially plant-derived biochemical pesticides, often act as multi-components, and these secondary metabolites are produced in the co-evolution of plants and insects. They are the result of long-term selection in nature, so insects are not easily resistant to them. .
(6) There are many ways to develop and utilize. Biological pesticides can be developed and utilized in a variety of ways: natural enemy animal pesticides can be artificially propagated and introduced, and microbial biological pesticides can be directly used by fermentation production or genetic recombination; biochemical pesticides can be directly used. Or use after artificially complete synthesis, or use bioengineering technology to direct culture, or use genetic recombination to convert into plant pesticides.
More bio-pesticide information, more China Pesticide Information Network ()
Cold Drawn Pipe,Seamless Duplex Tube,Cold Drawn Steel Tube,Hot Rolled Seamless Steel Pipe
Zhejiang Ruimai Stainless steel Tube Co.,Ltd. , https://www.ruimaitube.com