What pesticides are used in apple trees?

Apple is a low-calorie food with high nutritional value and is rich in minerals, vitamins and calcium, which helps to metabolize excess salt in the body. It is planted in many parts of our country, so what pesticides are used in apple trees? The pesticides used in apple trees need to be seen according to their growth cycle, disease symptoms and actual situation.

1. Common pest control methods in apple trees

1. Aphids

Aphids are common in both southern and northern fruit trees. at present, imidacloprid and acetamiprid are the main control agents for aphids. Due to the low temperature in the north, the effect of acetamiprid is poor. At present, the recommended agents are chlorpyrifos, cyhalothrin and internal absorption agents, such as imidacloprid, thiazide, furosemide, imidacloprid and so on.

2. Red spiders and other mites

The harm caused by mites is also widespread. Generally, avermectin, ethacazole, spiromether, cypermethrin, biphenylhydrazine, mineral oil and so on are commonly used. It is generally recommended that many kinds of agents should be used together, and 3-4 kinds of agents can be used together on citrus. Some mineral oil can be added appropriately to improve insecticidal efficiency.

3. Scale insects

At present, there are no good insecticides for scale insect control, and the promotion of acetophos has been banned in the past. at present, the products with good results are toxic chlorpyrifos, thiazinone, spirochete ethyl ester, mineral oil, thiazide and so on.

2. Control methods of common diseases in apple trees

1. Apple brown spot

It is mainly harmful to leaves and can also infect fruits and petioles. Commonly used medicament: Bordeaux liquid (1GRV 2ve200), 30% Ludebao 500 times, 77% Kouzaide 800 times, 70% methyl thiophanate wettable powder 800 times, 70% mancozeb wettable powder 500 times, 75% chlorothalonil wettable powder 800 times, etc. Note that if you spray Bordeaux solution in the young fruit stage, it is easy to produce fruit rust.

2. Apple ring disease

It is one of the most important diseases of apple branches and fruits. It is often mixed with dry rot and anthracnose, which is a major threat to fruit production. Commonly used sterilized Dan wettable powder, carbendazim wettable powder and so on.

3. Apple anthracnose

Also known as bitter rot and late rot, it is one of the most important fruit diseases of apple. it occurs in most apple producing areas in China, especially in hot, rainy and humid areas in summer. With apple ring disease, dry rot. From half a month after falling flowers, broad-spectrum fungicides were sprayed every 15 to 20 days.

In the use of pesticides in apple trees, we need to find out the symptoms of the disease first, and then prescribe the right medicine, not blindly.