How to get rid of small insects on roses and nets?

There are white web-forming insects on the leaves of roses, and most of them are mites.

will seriously harm the leaves, and the growth of the entire plant will be affected. When found, it is necessary to spray and treat it in time, and it is recommended to spray avida difen or other miteicidal agents.

If the number of insect infestations is small, it can also be removed manually. Note that the conservation environment should be changed in the later stage. In particular, it is necessary to control the humidity and temperature, ensure good ventilation, and avoid re-infestation infestation.

Briefly introduce the following kinds of pest and disease hazards and control methods:

Spider mites. Hazards: Spider mites are a common pest.

It harms the leaves, sucking the sap from the leaves, causing them to dry up and fall off. Prevention and control methods: Spider mites are small, not easy to find, and very easy to control, and need to be controlled for a long time.

The eroded leaves are first removed and destroyed, and then dicofol mixed with water is sprayed to kill the insects. The agent should be sprayed on both sides of the leaf every 15 days.

Aphids. Hazards: Aphids are also one of the common pests.

It appears all year round, and it is more harmful to young branches and new leaves, causing the leaves to shrink and become brittle, and also affect flowering. Control method: Wipe off the aphids with a brush or damp cloth, and cut off all the branches and leaves that have been harmed by the aphids.

Fallen leaves should be treated in time to reduce the possibility of eggs surviving. Laundry detergent can also be used.

Mix with water and spray to kill.

Rose stem and leaf bee, hazard: The rose stem and leaf bee is a pest that harms the stem of plants. It can cause wilting of the branches and, in severe cases, death.

Control method: When pruning roses in winter, check the roots to see if there are pests that have infested the cavities. After discovery, two drops of dichlorvos can be dropped.

Then seal the mouth with mud. If the shoots are eroded, they need to be removed and burned intensively.

Spodoptera exigua, damage: The larvae of Spodoptera exigua, roses, feed on the leaves of roses. It can also harm flower buds.

and petals. Control method: The larvae can be captured manually and the adults can be trapped. Trichlorfon can also be used.

Or kill the borer, fully diluted and sprayed.

There are many insects that harm roses. Rose stem and leaf wasps can damage the stems of the plant, and the roots need to be inspected for cavities in the winter, and dichlorvos is dripped to control insects.

The larvae of Spodoptera exigua in roses feed on leaves and need to be caught manually and the adults are trapped. Spider mites suck the sap and need to be sprayed with dicofol, aphids cause new leaves to curl up and need to be sprayed with laundry detergent mixed with water.

When pruning roses in winter, check the roots to see if there are any cavities infested by pests. After discovery, two drops of dichlorvos can be dropped, and then the mouth can be sealed with mud. If the shoots are eroded, they need to be removed and burned intensively.

It's not bugs, it's rose powdery mildew. Prevention and control methods:

1. To improve planting conditions, the greenhouse should be ventilated and transmitted, reduce humidity, avoid applying too much nitrogen fertilizer, and appropriately apply more phosphorus and potassium fertilizer.

2. Combined with pruning and pruning to remove diseased branches, diseased buds and diseased leaves, reduce the source of impregnation.

3. Biological control: Use 50ml of quick net + 10ml of garlic oil mixed with 30 kg of water for spraying, once every 3 days, spray 2-3 times in a row. In addition, the stone sulfur mixture also has a certain control effect on strawberry powdery mildew.

4. Before or at the beginning of the disease, 300 million CFU Trichoderma catthurium leaf wettable powder can be diluted 300 times, Bacillus subtilis 500 times diluted, 95% mineral oil 200-400 times diluted clove, celeryl 600 times, neophytomycin and other agents can be used to ensure uniform spraying, and apply the pesticide once every 7 days.

First of all, you need to know what kind of insect it is, and then go to the store to buy insecticides, or manually remove them one by one with small tweezers!

Find a large plastic bag, stick a few sticks higher than the flowers on the edge of the pot, spray the bag with insecticide and buckle it on the pot, it is best not to touch the flowers, remove the bag when you see bugs falling!! ~