How to Control Land Tiger with Potato

Potato tubers grow underground. Because they are rich in nutrients, they are favorite foods of many pests. They are often bitten off by pests or infected with potato flesh, resulting in uneven emergence and serious decline in yield and quality. The cutworm is the most serious pest, so how to prevent potato cutworm harm? Let's take a look.

1. Agricultural control

In autumn, the soil is deeply ploughed to destroy the overwintering environment of cutworms, and the overwintering larvae, pupae and adults are reduced by using low temperature to reduce the number of overwintering pests and reduce the harm of the coming year. Clear the field during its breeding season, clearing weeds and debris from the field and ditch edges and taking them out of the field to reduce the number of larvae and eggs. Molasses and black light can also be used to trap and kill the adults of cutworm by using its phototaxis and molasses, which can reduce the number of eggs laid by adults, reduce the number of larvae and reduce the harm of cutworm.

2. Chemical control

When using chemical control, try to choose high-efficiency and low-toxicity pesticides. You can use toxic soil and granules evenly spread among sowing ditches when sowing. Pay attention to the concentration of pesticides. Chlorpyrifos or phoxim can be used to spray the sowing ditch with water, and the sowing soil can be modified to prevent underground pests. It can also be used in seedling stage with 40% phoxim EC 1500-2000 times solution irrigation roots, generally 50-100 ml per plant, can kill larvae and eggs very well.

3. Poison bait trapping

If it is a small area of harm, you can use bait fried incense, such as bran, bean cake, and then mix with trichlorfon, pay attention to the concentration, then water the right amount, keep the bait slightly moist, generally spread 1.5-2.5 kg per mu, so that the tiger will die after eating this poison bait, so the effect is more effective than spraying chemicals.

The above is how to control potato cutworm introduction, hope to help you, want to know more related knowledge, please pay attention to us.