Analysis of Common Misconceptions in the Use of Microbial Pesticides
Microbial pesticides have developed very rapidly in China in recent years. Because of their characteristics of being environmentally friendly and healthy, with low input and high returns, they have gained support from many people. Under normal circumstances, microbial pesticides have more advantages than disadvantages, and more and more people are using them. However, many misconceptions often arise when using microbial pesticides. So what exactly are these misconceptions? Let's take a look below at the common misconceptions about microbial pesticides!
1. Temperature too low
When applying microbial pesticides, we should pay attention to the surrounding temperature and environmental factors. Many people, when using them, do not apply them on warm sunny days, but instead apply them in low-temperature environments in spring and winter. As a result, the effect of the microbial pesticides is not very ideal, because the activity of microorganisms has relatively high temperature requirements. And according to professional data surveys, after spraying microbial pesticides, when the temperature is controlled at around 28 degrees, the effect is far higher than the spraying effect at 10-15.
2. Too dry
Applying them in an overly dry environment is also a common misconception in the use of microbial pesticides. Many people find that during the time period from 10 o'clock to 16 o'clock on sunny days, the effect of spraying microbial pesticides is not very good. This is mainly caused by humidity being too low, because many microbial pesticides can only exert their efficacy in a high-humidity environment. For example, the common Beauveria bassiana needs suitable humidity to germinate spores and achieve a control effect on pests. Therefore, when applying microbial pesticides, it should be done when humidity is relatively high.
3. Not avoiding light
When applying microbial pesticides, not avoiding light intensity and applying them in a strong-light environment will also affect the efficacy of microbial pesticides. This is because the microorganisms in microbial pesticides are most afraid of ultraviolet rays. Ultraviolet rays have a fatal effect on microorganisms, and ultraviolet rays can also cause the parasporal crystals of microorganisms to deform, thereby reducing efficacy. Therefore, we should pay attention to avoiding time periods with strong light to ensure the efficacy of microbial pesticides.
4. Rain after application
If microorganisms are exposed to heavy rain after application, then basically there will be no effect. The spores of microorganisms have very poor tolerance to heavy rain, and rainwater will wash away the bacterial liquid. However, if within 5 hours after spraying, there is light rain, then it can instead improve the control effect. This is because light rain basically has no washing force and can also promote the spores to germinate as soon as possible. Therefore, when applying, we should pay attention to understanding the weather forecast to ensure that there will be no heavy rain after spraying.
The above is a brief introduction to the common misconceptions in the use of microbial pesticides. That is all for today's introduction. This article is for reference only. Thank you all for reading and supporting.