How about Bacillus thuringiensis against rice leaf roller

Bacillus thuringiensis (BT) is divided into a lot of strains, some are very good for rice, and some are far from the effect, I don't know which strain you use, this is also an important factor in the development of BT, but with the continuous improvement of production technology, BT has great potential for development, and has the potential to lead the bioinsecticide market.

Personally, it is recommended to use amide insecticides such as Kangkuan, which have good penetration, but one of the disadvantages of amide insecticides is that the effect on older insects is not very good, and some emamectin salt is added when it is serious.

After 7 days, the effect of using Bacillus thuringiensis to control rice leaf roller borer was poor.

Bacillus thuringiensis is a natural biopesticide with a strong insecticidal effect. It can kill some common pests, such as if flies, aphids, termites, etc.

First of all, Bacillus thuringiensis can effectively kill fruit flies. Fruit flies are a common pest that sucks on fruits and parasitizes them to lay eggs, causing a lot of damage to crops. The use of Bacillus thuringiensis can kill fruit flies and protect crops without affecting fruit quality.

Secondly, the thuringigold patting the slow bacillus attack can also kill aphids. Aphids are a common pest that sucks plant sap, which can lead to poor plant growth in the event of a large number of reproductions. The use of Bacillus thuringiensis can kill aphids quickly and effectively, allowing plants to grow healthily.

Finally, Bacillus thuringiensis can also be used for termite control. Termites are an important pest of cash crops, which can damage crop roots and soil structure. The use of Bacillus thuringiensis can kill termites quickly and effectively without polluting the environment, preventing termite damage.

In summary, Bacillus thuringiensis is a reliable biopesticide with strong insecticidal effect, which can be used to control a variety of pests such as fruit flies, aphids and termites. It not only protects crops, but is also harmless to the environment and human health, and is a soil biological agent worthy of popularization.

Bacillus thuringiensis can kill many kinds of Lepidoptera, Hymenoptera, Diptera and Coleoptera insects, such as pine caterpillars that harm pine trees, locust inchworms, spring inchworms, spruce inchworms, willow poison moths, poplar boat moths, black-spotted leaf wasps, pine leaf bees, canopy caterpillars, etc.

In nature, many insects damage the roots, stems and leaves of trees and crops, some hollow out tree trunks, and some burrow into the fruits and chew on them. Spraying them with a large number of chemical pesticides received some effect. But because some insects have developed resistance, insecticides are not very effective, and chemical insecticides also cause environmental pollution.

In the fight against pests, biologists have discovered a "living insecticide" - microorganisms. There are some microorganisms that specifically attack certain pests, but they are completely harmless to humans and animals, and do not pollute the environment, which is an ideal killer against pests.

The French scientist Bellinnae discovered a bacillus in a bakery in the Suyunjin area, which was named "Bacillus thuringi". This bacillus is the "natural enemy" of agricultural pests such as pine caterpillars, dance moths, armyworms, red bollworms, cabbage worms and corn borers.

People spray this bacillary agent on crops, when the pest bites the crop, this bacterium enters the pest's body with the food, and can produce a protein crystalline toxin, so that the pest's digestive organs get sick, and within a few days, it will rot and die.

Bacillus thuringiensis looks like a stick, short and stocky, and is less than five thousandths of a millimeter tall. When it grows to a certain stage, an oval spore will form at one end of the body, which will be used to reproduce offspring; At the other end, a diamond-shaped or nearly square crystal is produced, because it is accompanied by spores, which we call concomitant crystals, which are very toxic.

When the pest chews the crop, it eats the thuringibacillus into the stomach at the same time, which is like Sun Wukong burrowing into the belly of the princess of the iron fan, showing his majesty in the stomach of the pest. Its concomitant crystals contain toxins that can damage the digestive tract of pests, causing loss of appetite, sluggishness, vomiting, diarrhea; The spores can enter the bloodstream through the damaged digestive tract and multiply in the blood, causing sepsis, and eventually killing the pest.

The discovery of Bacillus thuringiensis provides a bright prospect for people to use microorganisms to eliminate plant pests and diseases. Now, people have used fermenters to produce Bacillus thuringiensis on a large scale, and after filtration, drying and other processes to make powder or wettable agent, liquid agent, sprayed on crops, cotton bollworm, cabbage worm, frog moth, pine caterpillar and corn borer, sorghum borer, three borers and other more than 100 kinds of pests have different pathogenic and toxic effects.

Bacillus thurturiensis also has a unique ability, it is not like chemical agents, whether it is pests or beneficial insects are killed, it can distinguish "friend and foe", dragonflies, praying mantises, parasitic wasps and other beneficial insects have no lethality, and there is no poison to humans and animals.

Scientists in our country have also cultivated borericidal bacteria and green worm bacteria. They are effective in eliminating pests in rice, vegetables and cotton fields, resulting in a significant increase in crop yields.

Bacillus thurturingiensis.