There are a lot of scale insects found on orchids, what should I do?

Scale insect is a very stubborn pest, used to be found on the pecan tree by a good farmer, did not care at the time, sprayed with the commonly used pyrethroid pesticides, no effect at all, and later learned in the explanation of agricultural technicians, first of all, we understand the scale insects. Scale insects, also known as orchid lice, are one of the common pests of orchids. It mainly harms leaves, leaf sheaths, and pseudobulbs.

In the early stage of infection, it attaches to the back of the leaf and pseudobulb and reproduces quickly. Scale insect is a common disease of orchids, scale insects are very small, the surface is wrapped with a layer of waxy shell, showing white or yellow-white, the disease will be densely distributed on the leaf surface of orchids, firmly attached to the leaves of orchids, orchid plants, leaves, shoots, insect pests, there are many kinds of pests, such as: nematodes, leaf miners, red spiders, scale insects, ......Wait.

Scale insect is a kind of crustacean insect, similar to flea, orchid plants, leaves, shoots, there are many kinds of pests, such as: nematodes, leaf miners, red spiders, scale insects ......Wait. Scale insects are crustacean insects that resemble fleas.

Agricultural dimethoate is watered thoroughly, and the effect of using it twice in a row is very good, which can kill a variety of pests! Spider mite, scale insect insects, nematodes, earthworms, polypod insects, and so on tens of thousands of orchids have excellent ventilation, but they can still be infected with scale insects.

Flowering fragrant, make people have a long aftertaste, for thousands of years, has been deeply loved by people, friends who raise orchids in the process of raising orchids, like a shell attached to the leaves, slowly spread the leaves, its reproduction is very fast, it attaches to the leaves, sucks the juice of the leaves, and leaves pale yellow and white traces on the leaves.

<> orchid is one of the top ten traditional flowers in China, and the orchid has a reputation of being indifferent and elegant, beautiful and pure. The orchid fragrance is far away, and the grass is fragrant roots. It is the praise of the Tang Dynasty poet Li Bai for orchids!

There are two treatment methods, the first is to spray a special insecticide if the number of scale insects is relatively large. Type 2: If the quantity is relatively small, mix vinegar with water and spray this liquid on the leaves. Do not water after beating.

Scale insect is a very stubborn pest, orchids have this situation, can be used with agricultural dimethoate with water water, twice in a row, each time between a few days, the effect is very good, and such a combination, but also kill a variety of other pests.

Insecticidal spray can directly kill this insect, so it is necessary to clean up the pests regularly in life to avoid damage to orchids.

Orchids have scale insects, no medicine, just give it a "vinegar bath".

It's August now, and the temperature is very high. At this time, the growth rate of orchids is slow, and the water demand is less. In addition, in order to avoid the breeding of pests and diseases, we will reduce the watering of the potting soil and maintain it properly.

However, in this case, orchids are very susceptible to scale insects, so how should scale insects be prevented? The way it controls is actually quite simple. We only need to purify and sprinkle this little white medicine dinotefuran on the potting soil of the royal house.

It is a granular insecticide with a strong systemic and contact killing effect. We take a small spoon and touch and poison these pests with the method of watering. Like this kind of medicine, we generally only use it once every forty or fifty days, and the validity period is still relatively long.

If we are already infected with scale worms, we need to disinfect these scale worms with alcohol first. Then use a cotton swab to get rid of all the scale insects, and then sprinkle small white medicine in the potting soil for control. Therefore, when raising orchids in August, I am most afraid of being infected with scale insects.

Once the scale insect is overflowing, it will cause great harm to the plant, eating its stems and leaves, blocking the transport of nutrients, is very bad for the growth of orchids, so prevention is the most critical.

In the process of raising orchids, if the leaves and shoots are deformed, the leaves gradually yellowing and falling, and the whole plant withers and withers, we must pay attention to it. This may be an infection with scale worms. You can open the surface of the orchid, the back of the leaf, the axillary bud and the bottom of the plant to see it.

Scale insects come in different colors, the most common ones are white, and of course they can be yellow, brown, gray or black when they become adults. In addition, a hard shell will form on the back, which can resist common pesticides and is difficult to remove.

If the plant is infected with scale insects, you can use a brush to scrape the scale insects clean, and then depot them in time, clean the root system, and manually remove all the pests on the plants, pot them with new potting soil, and then bury them in the soil. It can solve the situation of plant infection with scale insects and allow plants to grow healthily. Usually the plant is not infected with insect pests, and it can also be buried in the soil to prevent it.

What are the little white dots on orchid leaves? How to get rid of scale insects? Explained!

Prevention and control methods: (1) Prevention is the mainstay. When buying orchids, it is necessary to ensure that the seedlings are free of scale insects, and secondly, because scale insects are mostly caused by excessive water humidity and poor ventilation, therefore, special attention should be paid to environmental ventilation in daily management to avoid excessive humidity.

2) When there is a small number of scale insects, you can use a soft brush to gently brush off the artificial removal of the insects, and then rinse them with water. (3) When using drug control, when the nymphs hatch soon and have not yet formed a waxy shell, the pesticides used can be 40 dimethoate or oxidized dimethoate EC 1000 times, or 50 trichlorfon 250 times, or 80 dichlorvos EC 1000-1500 times, or deltamethrin EC 2000 2500 times. Generally, spray 1 3 times continuously, with an interval of 7 to 10 days each time, and the effect is better.

In addition, special attention should be paid to the fact that scale insects are easy to develop resistance to drugs, and it is necessary to master the concentration of pesticides and alternate pesticides.

Scale insect treatment method: Mix liquor with water, the ratio is 1:2.

When treating insects, water the surface layer of the potting soil thoroughly. Scale insects begin to move at room temperature 7 in spring. It can be poured once in April, and then every half a month or so, and it is effective for 4 consecutive times.

Use 50 ml of vinegar (rice vinegar), soak a small cotton ball in vinegar, and gently rub it on the stems and leaves of the affected flowers and trees with a wet cotton ball to wipe off and kill the scale insects. This method is convenient and safe, which can not only achieve the purpose of insect control, but also make the damaged leaves green and shiny again.

Gently and repeatedly rubbing the diseased plants with sprinkler sperm can get rid of scale insects, and they can be removed very cleanly and thoroughly. If you wipe the orchid disease leaves with sprinkler semen, not only can the scale insects be removed, but also the larvae that are not clear to the naked eye, they are also completely killed, and the second year is rarely found to have scale insects as a pest, this method is simple, safe, and the effect is good.

Use diesel, washing powder, water according to the ratio of :6 to adjust the mother liquor, at this time the mother liquor contains 60%, milk-like, diluted with water 30% of the oil solution, the Milan, kumquat, cycad on the scale insects carefully sprayed. After one week, most of the scale insects changed from fresh orange to shriveled state, indicating that this method has a good control effect on scale insects.

Note that because the leaves of the orchid are relatively large and easy to clean, you can choose to wipe them with a damp and soft rag, because the scale insects are not easy to survive once they leave the plant body.

1: Here are some simple and easy prevention methods: Dissolve the laundry detergent in a small amount of warm water, dilute it with water to 600 times the liquid, and evenly spray the front and back of the leaves of the plant, once every 3 days.

Squirt 3 times in a row. Laundry detergent can relieve the keratin on the surface of the shell worm and form a layer of foam to wrap the worm and suffocate it. Press 1:for diesel and water

The ratio of 60 is adjusted into an emulsion, diluted with 100 times water, and sprayed on the front and back of the leaves. Mix vinegar and water in a ratio of 1:8 and spray the front and back of the leaves; If the scale worm has become an adult, the acidity of the stick compound can be slightly increased, once every 3 days, sprayed 3 times in a row.

2: There is also a drug, worm curd, which is also effective after the shell is born, but the concentration should be slightly increased. Recently, our pepper here is prone to scale insects, and the control effect is very good with 25% grassworm line 1000 times.

In particular, the control effect of blowing cotton scales is particularly prominent. The control effect of nicotinic insecticide Liu on stabbing and sucking mouthparts pests is also relatively good.

3: Flatten the leaf surface of the scale insect, select a piece of scotch tape equivalent to the size of the leaf and stick it on the scale insect body, gently compact, and then slowly remove the scotch, the scale insect will be glued up with the tape, so as to achieve the purpose of the scale insect, and also protect the leaf surface.

Cool white watering orchids, pros and cons coexist!

Home-raised Chunlan and Jianlan are the most susceptible to chaff scales. To control this pest, on the one hand, we should improve the environmental conditions, and place the orchids in a ventilated, cool and well-ventilated place in summer and autumn. On the other hand, it can be used to kill insects, and it is best to spray once every 10 days or so during the hatching period of scale insects in early June, and the effect is better.

You can also use an old brush and soak it in soapy water to wash the diseased leaves.

Put a spoonful of orchid potting soil, and you will not be afraid of any scale insects and eggs.

The insect pests that infest white orchids are generally scale insects.

Scale insects are an important pest group of garden plants, the main characteristics of this group are: small or tiny insects, hidden life, fast reproduction, wide host range, this kind of pests in addition to female adults and nymphs on the branches, stems, leaves, fruits of the plant to suck sap to cause direct harm to the host, but also excrete a large amount of dense dew to induce coal pollution disease, affecting the host photosynthesis. Because the body of the insect is covered with white powder or wax, the control of the insect is quite difficult.

The common species are Egyptian Rhizome scale, Crape Myrtle scale, Mulberry white scale, Cycad round shield scale, Japanese turtle wax scale, Blowing cotton scale, Kaobai's shield scale, black spot shield scale, etc.

Prevention and control methods: 1. Manual prevention and control. When the number of insects is small, the branches with insects can be cut off, or the insect body can be washed with a brush and washing powder, and the branches with insects can be destroyed in a centralized manner.

2. Prevention and control of garden technology. Combined with pruning and shaping, pruning the damaged branches; Promote healthy tree growth by strengthening water and fertilizer management, thereby enhancing plant resistance to scale insects.

3. Chemical control. a. In the occurrence period of young nymphs, scrape a branch ring about 25cm wide on the trunk, and then apply 40% dimethoate solution; b. In the peak period of the initial hatching nymphs, spray with 1000 times of 40% rapid killing emulsifiable concentrate, 1000-1500 times of 25% prochlorphanyl emulsifiable concentrate, or 10% imidacloprid emulsifiable concentrate 1000 times, spray 1 time in 10-15 days, and spray 3 times in a row; c. Implant 5% carbofuran granules or 15% aldicarb granules in the root of the host.