What does bio-pesticide mean? How to tell the true from the false?

Pesticides are commonly used in agricultural production to prevent the invasion of diseases and insect pests, which can be divided into biological pesticides and chemical pesticides. Then many people don't know what bio-pesticides mean. I don't know how to tell the true from the false. Let's take a look at it.

First, what is the biological pesticide?

Biopesticide refers to the use of living organisms (fungi, bacteria, insect viruses, genetically modified organisms, natural enemies, etc.) or their metabolites (pheromone, auxin, naphthalene acetic acid, 2mem4Mel D, etc.) to kill or inhibit agricultural pests.

There is no very accurate and unified definition of biological pesticides at home and abroad. In terms of their utilization objects, bio-pesticides are generally divided into two categories: the direct use of living organisms and the use of physiologically active substances derived from organisms, the former including bacteria, fungi, nematodes, viruses and antagonistic microorganisms, the latter includes agricultural antibiotics, plant growth regulators, sex pheromones, feeding inhibitors, juvenile hormones and plant-derived physiologically active substances. However, in the practical application of agricultural production in China, bio-pesticides generally refer to microbial pesticides that can be produced on a large scale.

Second, how to distinguish between true and false bio-pesticides?

To accurately determine the authenticity and quality of a pesticide product, it usually needs to go through the legal pesticide quality testing unit, according to the technical indicators and testing methods stipulated in the product standard.

1. Look at the product packaging specifications

Biological pesticides such as plant sources, mineral sources, microorganisms, proteins and oligosaccharides are likely to be fake drugs with large usage, large packaging specifications and packaging specifications less than 50 ml (g).

Plant growth regulators (such as brassinolide) and sex attractants with small dosage and packaging specifications of more than 100 ml (g) are likely to be fake drugs.

2. Check the dose used in the product label.

Biological pesticides such as plant sources, mineral sources, microorganisms, proteins and oligosaccharides are widely used, generally diluted less than 500 times. If the outer packaging of the product is marked in dozens of milliliters (grams) per mu, or if the dilution multiple is more than 1000 times, the product may be fake.

3. Check the scope of application of the product

Biological pesticides such as viruses and sex attractants generally work on only one kind of pest. If such pesticides are marked with multiple uses, the product may be fake.

4. Look at the period of validity of the product

The active components of microbial drugs are living organisms and are not resistant to storage, and the shelf life is generally half a year to one year. If this kind of product is marked as valid for two years, the product may be fake.

5. look at the description of the efficacy of the product.

The effect of biological pesticides such as plant sources, mineral sources, microorganisms, proteins and oligosaccharides is slow. If the nominal action is rapid and quick, the products may be fake.