What kind of insect is on the beech tree and how to treat it?

Methods of beech pest control

1.When the beech tree appears big bag moth to eat the leaves, you need to use 90% trichlorfon dilution 1200 times of the solution, or with 6 diluted 000 times of the solution of the beech to kill 1 2 times every 2 months to control the bag moth, to avoid the yellowing of the leaves of the plant, wilting, the big bag moth generally appears on the back of the leaves, spraying pesticides must be sprayed on the back of the plant.

2.When there are borers on the zelkova tree to suck nutrients, it is necessary to dilute the solution of 1000 1500 times with 50% malathion emulsion, or the solution of deltamethrin emulsifiable concentrate diluted 3000 times to spray the zelkova tree to avoid malnutrition and defoliation when the plant grows.

3.When poisonous moths appear on beech trees, it is necessary to spray the plants with a solution of 1000 1500 times diluted with 40% acemethamidophos emulsifiable concentrate and a solution diluted 1000 times with 50% pine borer to prevent the poisonous moth from burrowing into the cracks of the bark of the plant, eating the trunk and roots, resulting in the failure of the plant to grow normally, or even death.

4.When there is a small ground tiger on the beech tree, it can be controlled by manual hunting. Soak a towel in a solution diluted 1000 times with 50% dichlorvos, soak for 10 minutes, take it out, and wipe off the trunk where there are small ground tigers and wipe them off with a damp towel.

The bugs are relatively small and look like ladybug larvae.

That's a bug larvae.

It is controlled with avirtrolide plus imidacloprid or other equivalent agents.

Bugs feed on the sap of plant tissues, causing the affected area to stop growing or the tissue to die.

You are welcome! Medication is required.

Yes, other drugs with the same effect will do.

Refer to package instructions for dosage.

Ok, welcome to the exchange! Thanks for the review.

Pest control. There are not many beech tree diseases and insect pests, and the common ones are big bag moths that eat leaves, and the damage is the most serious from July to September, and can be sprayed with 90% trichlorfon solution. It can also be manually cut in winter or early spring.

Summary. The common pests and diseases of zelkova trees are autumn four-veined cotton aphid, spot disease, psyllid, mildew disease, yellowing disease, etc., and the main pests in the seedling stage are small ground tigers, aphids, inchworms, etc., and pests and diseases should be prevented early, detected early, and early.

The common pests and diseases of zelkova trees are autumn four to do the mold vein streptocratic aphid, spot disease, psyllid, mildew disease, yellowing disease, etc., the main pests in the seedling stage are small tigers, pure slow aphids, inchworms, etc., pests and diseases should be prevented early, early detection, early **.

1.How to prevent and control brown spot disease is a fungal disease, the initial lesion is purple-brown, and can be connected into a piece when it is serious, mainly harming leaves and stems, and if not managed, it will lead to plant rot and death. The more effective prevention and control method is to completely remove the diseased residues, ventilate and drain the dampness, spray 50% carbendazim wettable powder in the initial stage, and apply it in combination with 50% benomyl wettable powder when Yan Heyou Wang is heavy.

2. How to control aphids Aphids damage the leaves and stems, the reproduction speed is extremely fast, the harm is more concentrated, the high incidence period is obvious, and targeted prevention and control is required. The control of aphids is mainly prevention, and can be sprayed for prevention in three seasons a year, sprayed in spring and summer for prevention, and sprayed once in winter with 45% crystal sulfur mixture to kill overwintering insect eggs.

3.How to prevent and control woodlice beech tree lice damage is in the end of April to late May, during which the southern region is hot and rainy, and it is most tolerant of rapid breeding of this insect pest, and it is pre-leakage in advance. Spraying with 5000 times of 70% imidacloprid and 20% carbofuran 2000 times dilution can basically control the pest of resale.

Please help me determine what disease the zelkova tree on the picture is.

I can't see your picture here, I don't see the picture you sent.

Okay, received, wait.

Pro, is the first pathogen, that is, the empty sail brown spot disease is a fungal disease, the initial lesion purple brown Qi loss eggplant, can be serious when it can be connected into a piece, mainly harm Gaocha leaves, stems, if not managed will lead to plant rot and death. The more effective prevention and control method is to completely remove the diseased residues, ventilate and drain the dampness, spray 50% carbendazim wettable powder in the initial stage, and apply it in combination with 50% benzyl wettable powder in severe cases.

Beech trees have serious diseases, and more than 20 kinds of insect pests have been found. The main pests at the seedling stage are small ground tigers, aphids, inchworms, leaf borers, poisonous moths, bag moths, beetles and other hazards, which can be sprayed with 80% dichlorvos 1000 times liquid, 90% trichlorfon 1200 times liquid or 6000 times liquid and other insecticides 1 2 times per month. Small-ground tigers must be watered or killed with poisonous bait.

After afforestation, it is necessary to control the main dry-boring pests such as purple stem beetle, a little flat moth, and codling moth. It should be combined with tending, germination, pruning and other work, check the harmful parts, and kill them with iron wire in a timely manner, or use absorbent cotton dipped in insecticide stock solution or low-power dilution solution such as methamidophos, dimethoate, dichlorvos, etc. to block the insect holes to kill. The fundamental method of control of purple stem beetle is to remove kudzu vines in the forest.

For leaf-eating pests, it can also be considered to trap with black light or sweet and sour liquid with insecticides.

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