How to get rid of roses, and what insecticides are used for rose insects?

A common insect infestation of roses is aphids, which can be covered with a plastic bag with lit cigarettes or mosquito coils; You can also soak cigarettes in water and spray the whole plant with a watering can. If it is a relatively large green worm, it can be caught by hand; In the case of other unknown insect pests, you can use the usual household anti-mosquito black cyclone spray. The above are the measures for growing flowers at home.

If it is a flower farmer, you can use special pesticides such as trichlorfon and dimethoate to kill it.

I encountered this when I was planting marigolds before, I forgot what the name was, it may be a spider like a red spider, the control is very simple, considering that you can't say that I will teach you a soil method with pesticides after all, I also used this method at the time, 1You go to the ground and pick up a few cigarette butts, and take out the tobacco in the bar (basically five cigarette butts).

2.Find an empty bottle, fill it with water, and put the tobacco in it.

3.Drop three drops of laundry detergent or the same amount of laundry detergent.

4.Shake vigorously for two minutes and leave for another half an hour.

5.Finally, filter out the tobacco, or change the bottle, poke a few holes in the cap, and then you can spray it directly, remember to spray the whole tree, and pour the excess water into the soil (do this step mainly to prevent the tobacco from blocking the nozzle).

The ingredients in tobacco are also a kind of pesticides, but the content is relatively small, but the effect can be guaranteed for 12 hours, spray there and die.

Note: The significance of laundry detergent is not for chemical reactions, mainly because there is a layer of oiliness on the body surface of insects, which will block the penetration of medicinal properties.

It is a very common insect pest of red spider, moon rose, golden full branch, love card mite, gram mite, avermectin are effective in killing red spider.

There are many insects that harm roses. Rose stem and leaf wasp will damage the stem of the plant, and it is necessary to check the roots for cavities in winter, and drip dichlorvos to exterminate insects; The larvae of Spodoptera exigua in roses feed on leaves and need to be captured manually and the adults are trapped. Spider mites suck the juice and need to be sprayed with dicofol; Aphids can cause new leaves to roll up and need to be sprayed with laundry detergent mixed with water.

Plant insecticides should be used, evenly sprayed on plant leaves, and should not be watered during the medication, otherwise there is no effect, you can spray several more times to consolidate it.

It can be sprayed with 600 times the liquid of mites that kill them; If there are few red spiders, the leaves can be removed directly and cleaned up; When there are many red spiders, you can use 20% dicofol emulsifiable concentrate 2000 times to spray and kill, and you can spray it several times.

The main pests of roses are beetles, marsupial moths, red spiders, aphids, scale insects, longhorn beetles, etc. Scarab and big bag moth mainly harm the tender shoots and leaves of roses, and can be sprayed with phosphine and killed by the enemy during the occurrence period.

Red spider, also known as cotton red spider, commonly known as big spider, big dragon, sand dragon, etc., scientific name leaf mites, the species of our country are mainly cinnabar leaf mites, belonging to arachnids, ticks, leaf mites. It is widely distributed and has a miscellaneous diet, which can harm more than 110 kinds of plants.

1) This insect is very small, less than 1 mm, round or oval, orange or reddish-brown, because of the small size is not easy to find, once it is found to be a pest, often the flower damage is relatively heavy. This insect pest method is to pierce the mouthparts into the leaves and suck the sap, so that the chlorophyll is destroyed, and the leaves appear gray and yellow spots or patches, and the leaves are orange, fall off, and even fall light.

2) Chemical control should be applied to 4000-5000 times of mite danger (800-1000 pounds of water per bottle of 100 ml) uniform spray, 40% dicofol EC 1000 1500 times, 20% mite kill net wettable powder 2000 times, 15% pyridoxine EC 2000 times, 1 8% zitogenol EC 6000 8000 times, etc.

1. Rose stem and leaf bee

Damage: The rose stem and leaf wasp is a pest that harms the stems 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, and then the mouth can be sealed with mud. If the shoots are eroded, they need to be removed and burned intensively.

2. Spodoptera in roses

Hazards: The larvae of Spodoptera exigua in 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 or pine borer can also be used to fully dilute and spray.

3. Red spiders

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.

4. 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. In addition, you can use laundry detergent mixed with water to spray and kill.

After the aphids are found, they should be sprayed with dimethoate immediately. However, aphids focus on prevention, and a variety of insecticides should be sprayed in the vigorous germination period to have a good control effect, and the key spraying parts are the growth point and the back of the leaves.

In the early stage, you can use 600 times the liquid spray of mites that kill you, if there are few red spiders, you can directly remove the leaves and clean them, when there are many red spiders, you can use 20% dicofol emulsifiable concentrate 2000 times liquid to spray and kill, and spray several times.

1. When pruning roses in winter, check the roots to see if there are cavities eroded 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.

2. Strengthen management, improve the environmental conditions for the growth of roses, enhance the growth potential, and improve the disease resistance of roses.

3. Completely remove the diseased buds in spring and burn them intensively to reduce the source of primary infection.

4. Spray 2000 times of 25% mixinmyconazole every 10 15 days after flowering.

5. Improve light transmission conditions and control field humidity.

6. Remove diseased leaves and buds at an early stage to reduce the source of re-infiltration.

7. Spray Bordeaux liquid or 2 degree stone sulfur mixture before germination; Spraying Henan Longdeng wettable powder, white powder 1+1 or 25% ethylmeticonazole emulsifiable concentrate can be sprayed during the disease period.