Fire ants, now they have started to climb upstairs and enter the room. What do we do in recent years, as long as the weather is hot, red imported fire ants appear.

It is also necessary to master the biological characteristics of red imported fire ants to kill them, rather than blindly killing them with drugs. First of all, red imported fire ants are afraid of low temperature and high temperature, which means that red imported fire ants are more active in summer and inactive in winter. In addition, the breeding types of red imported fire ants are scattered, just like termites. In addition, its breeding time is April-June.

What medicine is used to kill red imported fire ants?

Pesticides for killing Solenopsis invicta include: bifenthrin, permethrin, fenvalerate, cypermethrin, deltamethrin, cyfluthrin, sevoflurane, pyrethrin, etc.

1. Use of bifenthrin

It has the characteristics of strong knock-down effect, broad spectrum, high efficiency, rapidity and long duration, which mainly has contact killing effect and stomach toxicity, but has no systemic effect.

2. Permethrin

Permethrin is an organic compound with the molecular formula C2 1H20Cl2O3 and the molecular weight 39 1.288. Colorless crystal (but the technical product is usually light brown liquid) is an insecticidal compound and nerve agent.

3. Fenvalerate

Fenvalerate is a moderately toxic pesticide. The acute oral LD50 of the original drug in rats was 45 1mg/kg, the acute percutaneous LD50 >:5000mg/kg, and the acute inhalation LC50 >:10/mg/m3, which was slightly irritating to rabbit skin and moderately irritating to eyes.

4. Cypermethrin

Cypermethrin is an organic compound with the chemical formula of C22H 19Cl2NO3, also known as Mibaike and Anlubao. Industrial products are yellow to brown viscous solids and viscous liquids at 60℃. This is an insecticide.

In addition, you can also spread bait in the feeding area of Solenopsis invicta, which is usually made of corn particles and soybean oil plus chemicals. After about 10 ~ 14 days, we can use the independent anthill treatment method and continue the treatment until the problem is solved.

In a word, red imported fire ants are very harmful to agriculture and people. If it is found, you can also ask professionals to eliminate it.