What are the advantages and disadvantages of biopesticides?

1. Advantages:

The most prominent point is its safety, strong selectivity for pests and diseases, and safety for human and animal, environment and natural enemies. Some of the biopesticides are living organisms, which can reproduce on their own after use, greatly prolonging the period of efficacy and building a new environment of ecological balance.

For example, after releasing aphid wasps or predatory mites in vegetable greenhouses, relying on their continuous reproduction, mites, whiteflies and other pests can be controlled within the safe range, and there will be no outbreaks of infestation.

In addition, the biopesticide source is wide, the improvement potential is large, not easy to produce resistance, many aspects of the advantages make the biopesticide has become a hot spot for development in recent years. We use biopesticides, the most critical is to give full play to their advantages, rational application, in order to achieve better results.

2, shortcomings

Biological pesticides have many chemical pesticides difficult to have the advantages, but the biological pesticide products compared with chemical pesticides, there are many inherent weaknesses, such as slow onset of action, susceptible to temperature and humidity and other conditions, the role of the components of the complexity.

In the current vegetable farmers are accustomed to the use of chemical pesticides, these defects of the biopesticides are magnified, good things farmers will not use, affecting the promotion and application of biopesticides. This requires us to increase publicity in the use of methods and other aspects of guidance to vegetable farmers to make adjustments in order to amplify the advantages of biopesticides, to make up for the shortcomings, give full play to the role of biopesticides.

Extended information

Biochemical pesticides must meet two conditions: no direct toxicity to the control object, but only to regulate the growth, interfere with mating or seduction and other special effects; must be natural compounds, if synthetic, its structure must be the same as the natural compounds to allow for the difference in the proportion of isomers.

This type of pesticide contains pheromones, hormones, natural plant growth regulators and insect growth regulators and enzymes, some plant-derived pesticides such as neem, rotenone, nicotine, natural pyrethroids and herbs and other pesticides should also be used as biopesticides.

Microbial pesticides include preparations naturally produced by bacteria, fungi, viruses, etc. to control diseases, insects, grass, rodents and other harmful organisms, such as Pale Purple Purple Spore, Green Stiffy, Bacillus thuringiensis, Nuclear Polyhedrosis Virus, and Wellbutrin, etc.?

Baidu Encyclopedia - Biopesticides