Common diseases and pests control in Yushu

aphid

1. Symptoms:

This kind of pest and disease mainly targets the young and tender parts of the plant. It prefers juice, so it will often suck the juice away, which will cause problems for the growth of the seed plants. The secretions of this kind of insect can easily attract ants, and some other diseases may also occur.

2. Prevention and control methods:

1. When the amount is relatively small, we can use a brush to brush away the bugs, or we can use a solution of laundry detergent to brush them away.

2. We can use dichlorvos. The method is to soak a piece of cloth with DDT, then put the cloth in the pot, then use a plastic bag to cover the plant and the pot together, and keep it sealed for a day.

3. We can also use mosquito repellent to kill it, or we can use 600 and 800 times solution of Fengyoujing to spray it.

4. Dilute the soaked cigarette butts water and spray it on aphids to treat them. In addition, use 20 grams of crushed onions and add 1000 grams of water. Spray it after 24 hours to kill them.

5. You can also buy medicines such as omethoate emulsifiable concentrate to treat this type of insect.

Rot

1. Symptoms:

This disease rots from the bottom. Usually brown in color, it is soft and rotten, and then spreads throughout the plant.

2. Reasons:

There are generally several causes of this disease, including watering, drainage, soil permeability, and uncomposted organic fertilizer.

3. Solution:

There are several general solutions, including proper watering, improving air permeability, pulling out plants with more serious diseases, applying Daknin or sulfuric acid powder to the injured areas, and fertilizing with decomposed fertilizers. In addition, we also need to use disinfected soil. The disinfectants generally used are formaldehyde, carbendazim or mancozeb.