What about orchid worms? prevention and control of common orchid diseases and insect pests (diluted washing powder can kill insects)

Orchids are common potted flowers in daily life. Orchids are very popular because they are beautiful and unpublicized. In nature, any plant can grow worms, and orchids are no exception. Common orchid pests are red spiders, scale insects, whitefly, many people do not know what to do with orchid worms, let's take a look at the prevention and control of common orchid diseases and insect pests.

What about the orchid worm? spray to kill the insect.

Earlier we talked about what to do when the orchid leaves turn yellow, and now let's take a look at the orchid worm. Common orchid pests are whitefly, scale insects, red spiders, each pest control method is different, insecticides will be different, the following we explain the orchid common pest control methods one by one.

II. Prevention and control of common diseases and insect pests in orchids

1. Whitefly

Whitefly is small in size and powdery all over the body, and orchids with thinner leaves are easy to suffer. When the disease occurs, the orchid leaves turn yellow, brown rot will occur in the wound, and even the whole plant will die.

Solution: spray the liquid 2000 times as much as Shuijiaoding in time.

2. Red spider

It often occurs in places with strong light, dry operation and high temperature. The reproduction is fast, and it can reproduce 14-18 generations every year. The damage is serious, and the leaves of the affected plants are yellow or necrotic plaques. It completely lost its ornamental value, and some even died of the whole plant.

Solution: inject exhaustive ventilation and spray water to increase humidity, such as a few pots can be washed manually, the quantity is more than 40% drunk, 80% dichlorvos or 40% omethoate 1000 times liquid spray, the control effect is good.

3. Scale insects

Scale insects are the most common pests in orchids, which are mainly parasitic on stems and leaves. It has a strong reproductive ability and can reproduce for several generations in a short period of time. And there are many species of scale insects, including shield scale, striped pink scale, mulberry white shield scale and bran shield scale.

Solution: the main reason for the occurrence of scale insects is poor ventilation, so it is necessary to strengthen ventilation, supplement sunlight and ensure proper humidity in maintenance. Dilute with liquor, vinegar and alcohol, wipe the plant repeatedly, this method is convenient and safe, not only eliminate insect pests but also let the leaves return to the new green. The above is the orchid insect how to do and the solution, let's take a look at the orchid common diseases and insect pests control.

3. The most practical methods for orchid pest control

1. Cigarette butts

Usage: take more than 20 cigarette butts and a portion of quicklime, add water and stir evenly, soak overnight, then filter, add 30 times of water, directly spray orchid plants, spray basin bottom can also kill ants and other pests. Tobacco leaves contain nicotine, which can detect and kill insect pests.

2. Washing powder

The washing powder can dissolve the cornea of the shell worm and form a layer of foam to wrap it around the worm, causing the shell worm to suffocate to death. Washing powder solution can control some diseases and insect pests.

Usage: dissolve the washing powder with a small amount of warm water, then dilute it to 1000 times with water, spray the orchid plant, and kill aphids, whiteflies and red spiders.

3. Liquor

Usage: mix liquor and water at the ratio of 1:2, spray orchid plant, spray once a week, spray three more times, can kill scale insects.

4. Brown sugar

Usage: what about orchid worms? Powdered brown sugar and boiled water can be mixed at the ratio of 1 to 100. After cooling, the orchid plant is sprayed with brown sugar solution, once every 3 days, for three times, which has a good effect on the control of downy mildew, powdery mildew, black spot and leaf blight.

5. Vinegar

Usage: mix vinegar and water at the ratio of 1:8 and spray the orchid leaves evenly on the front and back of the orchid leaves to treat scale insects. If the scale insect has become an adult, it can slightly increase the acidity of the mixture and spray it once every three days for three more times, which can kill the scale worm of its own adult. Foliar spraying vinegar can also eliminate black spot, powdery mildew, leaf spot, chlorosis and so on. Do not use sour vinegar for industrial use.

6. Odorous vegetables

Odorous vegetables have their own peculiar smell, and their odors can play a role in insecticidal and sterilization. The odorous vegetables commonly used in the family are onions, garlic, leeks, ginger, onions and so on. Usage: take appropriate amount of odorous vegetables. Mash it into juice, mix it with less water, and spray the orchid plant directly. It can treat aphids, red spiders, shell insects and gray mold. The above is the orchid worm how to do, orchid common pest control all the content, I hope to help you.

Symptoms and control methods of 9 succulent diseases and insect pests

No. 1: scale insects

Small scale insects are often seen parasitic on the leaves. They are usually white and do not move much. It is difficult to find them hidden in the center of the leaves. How to get rid of them and prevent them from multiplying in large numbers?

The white bug pictured above is a scale insect.

Shell insects are protected by hard shells, and it is not easy to kill them after the disease. Scale insects are most common in succulent plants of the family Cactus, Euphorbiaceae, Liliaceae, Amygdalaceae and jade.

Scale insects reproduce rapidly, each adult lays nearly 100 eggs twice a year, and the eggs are powdery. After drying and cracking, they float away with the wind and are scattered on the stems and leaves of plants everywhere. When the water is wet at high temperature, the adults hatch. At this time, the shell has not yet been formed, is the best time to destroy.

There are also many species of scale insects, which are covered with a waxy hard shell and are round or oval in shape. the former is about 3 to 3.5 mm in diameter, and the latter is about 2 mm in length and 1 mm in width. when the quantity is small, it is parasitic near the thorn seat or in the leaf back and leaf sheath of the plant. When the quantity is large, the stems, branches and leaves are parasitic everywhere, absorbing plant nutrients.

Treatment: when the number is small, you should immediately remove it with bamboo sticks and toothbrushes, isolate flowerpots with worms, so as to avoid infection, and use brush to wash with Bizhi diluent or high concentration of alcohol to kill larvae and eggs.

Note: the most suitable pharmaceutical recommendation

1. Protect the god of flowers

It can be eradicated with 500 times dilution, spraying stems and leaves once a week and 2-3 times. General toxicity, but can not be sprayed in the wind, do a good job of ventilation, and should wear masks, gloves, after the work, be sure to take a bath and change clothes.

2. The ratio of liquor to water is 1:2.

When controlling insects, water through the surface of the basin soil. Scale insects begin to move when the room temperature is 7 ℃ in spring. It can be watered once in April, and then every half a month or so, and it has been effective for 4 times in a row.

3. Vinegar (rice vinegar)

50ml, soak the small cotton balls in vinegar and gently wipe the damaged stems and leaves with wet cotton balls to wipe off the shell insects. This method is convenient and safe, which can not only achieve the purpose of disinfestation, but also make the damaged leaves green and shiny again.

4. Alcohol

Gently wipe the diseased plant repeatedly, you can get rid of the scale insects, and can be very clean and thorough. For example, when wiping the diseased leaves of orchids with alcohol, not only the scale insects can be removed, but also the larvae that are not visible to the naked eye can be completely killed, and the harm of scale insects is rarely found in the second year. This method is simple, safe and effective.

5. Diesel oil, washing powder and water

At this time, the mother liquor contains 60%, which is in the shape of milk. After diluting the oily 30% solution with water, the beetle insects on Milan, kumquat and cycad are carefully sprayed. After a week, most of the scale insects changed from fresh orange to withered state, indicating that this method has a good control effect on scale insects.

Second place: anthrax

There are small black spots on the leaves. What disease is it caused by?

The black spot above is anthrax.

Cause of illness:

It usually occurs in over-planted, poorly ventilated or injured wounds. The main damage occurred in the stem, stem node or near the edge of the small brown spots, and then expanded into round to oval or semicircular to amorphous brown spots.

Treatment:

Brown depressions and spots are produced in the early stage of the disease, and when serious, there is gangrene in the center of the spot, which is difficult to cure. When buying, you should pay attention to whether the plant has this epidemic disease and avoid buying. When you get sick, be sure to cut off and burn the disease, and then use special agents such as anthrax and Fumei.

No. 3: rust

A flower friend asked: there are rusty spots like rust on the leaves. What is the disease?

The picture above shows rust.

Cause of illness:

It is mainly caused by improper cultivation management, such as poor pot soil, lack of nutrients, or poor ventilation for a long time, direct watering at the top of the plant, and rust infection caused by environmental factors.

The disease occurs in the plant epidermis. At the initial stage, swollen dots appear in the stem epidermis, showing yellow or reddish brown in the center, and then slowly expand around, seriously sagging to form ulcers, blackening tissue and even death.

Treatment:

In addition to paying attention to management, to strengthen ventilation and avoid watering at the top of the plant, 12.5% uniconazole wettable powder 2000-3000 times or ammonium Naipu 1500002000 times diluent can be sprayed once a week.

No. 4: root powder scale insects

The plant root appears white cotton wool, filamentous disease, what disease is it after all, how should solve?

The above picture shows the root powder scale insect.

When the plant is dormant, the basin soil is dry, and the root powder beetle has strong fecundity, and it will climb out from the bottom of the basin and invade the other pot. if the plant is seriously injured, the soil near the flower root is white and cannot be watered.

Pest judgment:

This pest is mostly parasitic on the root of the plant, the body length is about a few millimeters, there is white powder on the outside, and the parasitic place is a lump.

Treatment:

Infuse the flower protection god with water into the culture soil, or "Guoguang must be treated", the two flower protection gods are less harmful and have a preventive effect; if they have been parasitized, they can wash the plants, remove the parasitic parts of the root lice, and plant new soil.

You can also use prednisone, which can remove most pests. They can only be used occasionally on plants that are not edible. Plants used for eating cannot be used. Be sure to carefully look at the mode of use and dilution multiple.

No. 5: red spider

There are red spiders in the potted plants at home, which will spread to the nearby plants if you don't pay attention to them. How to prevent and cure them?

The picture above shows the red spider.

Red spiders reproduce rapidly during the drying period, and foliar spray can restrain the damage. Among the harmful flowers, cactus, apricot, Euphorbiaceae and Liliaceae are more common.

Red spider about 0.5 mm in diameter, fast crawling, small size, not easy to find, often gathered in groups, gnawing on stem and leaf epidermis, so that the injured place is mottled rough, indecent white or yellow.

Treatment:

Red spiders are easy to develop drug resistance, long-term use of a drug, will reduce the effectiveness. At present, the drugs used are imidacloprid, nicotine, carbofuran, pyrethroid insecticides are not very effective on it, the radar and other pesticides on the market have no effect, the above drugs are relatively easy to buy, but carbofuran is extremely toxic and cautious.

Florists can also smoke with mosquito-repellent incense for 30 to 60 minutes at a time.

PS: the method of self-made pepper water is simple, as long as crushing raw pepper and garlic, and then mixing with water, but the effect is not as effective as insecticides, so it is suitable for prevention and use in advance.

No. 6: aphids

Flower friend asked: dense aphids swarm on plants, how to eliminate them?

The picture above shows aphids.

Species that are prone to insect pests include Sedum, Compositae and Cactus, which are all common.

Diseases and insect pests:

Aphids can reproduce 5-10 larvae a day, which are usually gray-green pests, about 1-2 mm long. community plants pierce the plant tissue to absorb nutrients near the branches or on the new buds, and the young leaves are often curled into cylinders. In that way, flower friends can not see the aphids, which is very tricky.

Treatment:

Mix a bottle of Huasheng pesticide with a 500ml cola bottle, fill it into a spray can, and then spray it evenly on the plants. Spray must be comprehensive and meticulous; remove the surrounding weeds to ensure a clean environment, but also have a preventive effect.

No. 6: snails and slugs

The leaf was obviously bitten around. What kind of pest caused it? What should we do about it?

Causes of insect pests:

If the climate is warm and humid, snails and slugs will become more and more, and they will reproduce quickly. These soft bugs can be found in both urban and rural areas, and can be found when they grow more plants.

Generally speaking, these soft bugs are generally snails and slugs, and many flower lovers say that they cannot be found because they hide in damp and dark places during the day and come out to look for food at night, not only eating young branches and young leaves, but also old stems and leaves.

Treatment:

Remove weeds, rubbish, tiles and other deposits around the pot, keep clean can effectively prevent, in addition, install screen isolation around the pot, or buy special medicine to kill snails, you can also sprinkle lime or salt next to the flowerpot, do not sprinkle the soil.

No. 7: ants

Flower friend asked: ants will not directly bite plants, will it endanger plant health?

Of course, they are very harmful. They are the biggest accomplices in the destruction of succulent plants.

The picture above shows ants.

Cause of damage:

Because ants like to eat the secretions of aphids, woolly worms and shell insects, they often move these pests from diseased succulent insects to other succulent insects, which is really very abominable. These ants not only protect the survival of pests, but also eat the nectar secreted by pests. They collude with each other and are the biggest accomplices to harm plants.

Prevention and control measures:

When buying potted plants, carefully check the surroundings and the bottom of the pot to see if there are any ants, because once there are ants, it means that there may be other pests; when ant damage occurs, you can use general pesticides.

No. 8: big caterpillar

Flower friend asked: what should I do if I see a fat caterpillar in a potted plant at home?

The picture above shows the caterpillar.

Diseases and insect pests:

Some succulent plants close to shrubs and trees are easy to have this kind of caterpillar, some are blown down on flower plants by the wind, some climb to succulent plants at night from the shadows, and the most abominable is a kind of black burglar in the latent soil, which specializes in eating young stems and leaves of plants, and takes succulent plants as the main prey.

Treatment:

Remove weeds around the potted plant and set up gauze. In general, the oily insecticidal liquid on the market is very effective against caterpillars, but you must be careful with plants, otherwise plants are vulnerable to drugs, just grab one or two and kill them.

No. 9: Xiao Hefei

Xiao Hei Fei is a kind of thing similar to mosquito larvae, but it doesn't live in water, but it can fly, it can be found in warm and humid environment, and it breeds very fast, it's really annoying!

The picture above shows Xiao Hefei.

Diseases and insect pests:

In fact, harmful plants mainly leave scars after feeding, and they multiply very fast, which looks very bad.

Treatment:

It can be killed mainly with pyrethroid insecticides. Huasheng can be used to irrigate and spray plants in the soil, or carbofuran can be buried in the soil. Pay attention to the small amount of medicine, only one medicine is easy to make insects develop disease resistance; it can also be fumigated with a small section of mosquito incense, which is effective on adults and cannot kill the larvae in the hidden soil!

How to eliminate pests in flowerpots? Control methods of common flowerpot pests

Recently, there are always flower friends asking questions about killing insects. Today, the editor will give you a tip. As long as you find timely and timely measures, I believe your flowers will get rid of insect pests and become sturdy, shiny leaves and more flowering.

I. aphids

Which plants are harmed?

Rose, chrysanthemum, hibiscus, rhododendron, hyacinth and so on.

Solution.

1. Detergent and white vinegar

1. Prepare 550ml plastic bottle, fill it with water, drop 4 or 5 drops of detergent, pour 2 bottles of white vinegar with more than 2 caps, shake well and spray where there are bugs.

two。 Generally, spraying 2 or 3 times can solve the problem.

2. Cut tobacco

1. Take 5 or 6 cigarettes, pick out the cut tobacco and soak it in water for 2 days, take out the clear liquid, where there is insect spray.

2.2, 3 days later, spray again, usually 3 or 4 times, the aphids will die. Cut tobacco water can also be diluted 10 times before filling the root.

Scale insects

Which plants are harmed?

Succulent plants, orchids, happiness trees and so on.

Solution.

1. Washing powder

The detergent is diluted with water according to 1RV 500 or 1Rd 600, and the problem can be solved by spraying the worms once every 3 days and then spraying it for 3 times.

2. Alcohol

Dip in alcohol with cotton swabs, wipe the leaves and stems again, and wipe them again after 2 or 3 days.

Third, red spider

Which plants are harmed?

Milan, jasmine, begonia, sweet-scented osmanthus, rose and so on.

Solution.

Aika mite, Jinmanzhi

1. Ika mites are diluted with water, and the ratio of Eka mites to water is 2500. After dilution, spray directly on the leaves. Don't forget to spray on the back as well.

After 2.3 days, use Jinmanzhi and dilute it with water. The ratio of Jinmanzhi to clear water is 11500. spray branches and leaves.

3. In three days, Ika mite will be sprayed. Generally, two kinds of drugs can be sprayed alternately for 2 or 3 times to solve the problem of red spider.

Fourth, Xiao Hefei

Which plants are harmed?

Dahlia, impatiens, crape myrtle, acacia, calamus, carnation and so on.

Solution.

Plant ash

Collect plant ash and soak it with water. the ratio of plant ash to water is 1:5. After soaking for 1 day, the clear liquid can be sprayed with flowers for 1 or 2 times. Or paving with plant ash can also put an end to insect eggs and solve the problem of insect pests.

White whitefly

Which plants are harmed?

Gardenia, hydrangea, peony, Fusang, five-colored plum and so on.

Solution method

1. Chlorpyrifos

1. Dilute with clear water, the ratio of chlorpyrifos to water is 1RU 300, spray foliage or directly irrigate roots.

two。 After killing the insects, clean the river sand and give the flower shop surface after the sun exposure, effectively preventing the insects from laying eggs in the basin soil.

2. Protecting the god of flowers

1. Dilute the flower protector with clear water, the ratio of the flower protection god to the water is 1: 200. After dilution, it can be used to spray branches and leaves and kill insects, spraying once every 3 or 5 days.

two。 Dilute the flower protector with water. The ratio of the flower protector to the water is 1: 500, and then irrigate the root, once a week.

How to prevent plant pests?

First, start with the soil

If you want to cure diseases and insect pests, you should start with the soil, especially when you change the basin, remember to change the sterilized soil.

1. Exposure to the sun

After the soil is ready, spread it on a clean platform and let it be exposed to the sun. Remember to turn the soil every 2 or 3 days and use it again for 7 or 8 days.

two。 Use of carbendazim

Add carbendazim to the soil, the ratio of soil to carbendazim is 1: 800, stir it carefully and cover it with a plastic film. After 2 or 3 days, it can be used to grow flowers.

3. Cooking

Put the nutritious soil in a steamer and cook it at high temperature for 1 hour, then take it out to cool it and then use it.

2. Pruning plants in time

If the plant grows too thick, its interior is not easy to be ventilated, and the muggy environment is easy to get worms, so it is necessary to prune the plant in time.

Third, skillfully use tin foil

Collect tin foil and spread it on the basin, which will help the plant to receive light in all directions, and it will be difficult for pests such as aphids to survive in strong light.

Learn to interplant

When growing flowers, put a pot of cat mint or dry lotus next to them, these two tricks ladybugs, and ladybugs are the natural enemies of aphids, which can kill aphids.