CATDOLL : CATDOLL: How to treat red spider mites

1. How to treat red spider mites

The control of red spider mites should be based on agricultural control, and the application of biological control and chemical control should be coordinated. In terms of strategy, the focus should be on the stage of spot occurrence to control the damage to the minimum.

(1) Agricultural prevention and control.

① Clean the fields. In late autumn, burn or compost the fallen leaves in the fields to reduce the places where red spiders overwinter. In spring, remove the remaining branches and weeds in and around the fields before planting to eliminate the insect sources that overwinter there. ② Strengthen field management. Especially in dry weather, pay attention to irrigation and combine fertilization to promote the healthy growth of plants and enhance resistance.

(2) Chemical control.

On the basis of strengthening the monitoring of field pest mites, timely treatment should be carried out at the stage of spot occurrence to avoid large-scale outbreaks. In recent years, due to the continuous use of chemical pesticides, especially the unreasonable types, concentrations and application periods of pesticides, spider mites have developed resistance, and their natural enemies have been killed in large numbers, leading to rampant harm. Therefore, when applying chemical pesticides, attention should be paid to the rotation of different types of pesticides, the use of compound synergistic pesticides or some new special-effect pesticides. At present, there are many chemical pesticides that can be used, such as 20% amitraz EC 1000 times solution, 73% cypermethrin EC 1000-1500 times solution, 40% chrysanthemum·horse EC 2000-3000 times solution, 25% mite-killing wettable powder 1000-1500 times solution, 5% flufenoxuron EC 1000-1200 times solution, 2.5% bifenthrin EC 1500 times solution, etc., all of which have good effects.

2. How to eliminate red spider mites on fruit trees and corn

If you can still buy carbofuran, it is a special medicine for killing red spiders. Spray it at a 1500-fold dilution. However, it is highly toxic and has a high residual amount. If you can't find it, spray it at a 800-fold dilution of cypermethrin, which is also effective and has low residual amount. Remember to "spray from bottom to top"

3. Can highly effective cypermethrin kill red spider mites?

Yes, but you have to control the concentration of water.

There are some cheap and easy-to-use plant pesticides on the Internet, which cost about 25 yuan. They can easily kill red spider mites without harming plants.

4. Can I use pesticides if red spider mites grow on plants?

Of course not, otherwise the gain will outweigh the loss.