What to do when Violet grows worms? pest control of Violet / including detailed measures

Although the flowers of violets are beautiful, they can grow healthily and blossom on the premise of enjoying the beauty. If diseases and insect pests are caused by improper cultivation of violets, it will undoubtedly do great harm to violets. What if violets grow bugs? Today, I will introduce to you the commonly used pest control methods of violets.

What if Violet has worms?

If there is a lack of management of the growth of violets, it will often cause some bad consequences, the long worm is one of them, and what if the violets grow bugs? We should find out which kind of insect and take effective measures to remove it. At present, the two common pests in violets are aphids and root-knot nematodes. The following mainly introduces the control of these two kinds of insects.

1. Aphids

Aphids appear in many plants, and the leaves, buds and buds of violets are also one of the favorite places of aphids. They use mouthparts to pierce the tissue of the plant to absorb juice, and then leave black or yellow spots on the leaves and buds. Then cause the leaves to fall off, the buds can not bloom, and even lead to the death of violets.

What to do: spray with a solution diluted to 1500 times the concentration of dimethoate or omethoate, or 3000 times with fenvalerate.

2. Root-knot nematode

It usually spreads by irrigation, such as soil with germs, etc. Once the basin soil contains root-knot nematodes, violets will soon be infected, so measures should be taken as soon as possible.

What to do: what if violets have worms at this time? Disinfect the soil before planting. If it is found that root-knot nematodes must be treated with chemicals, chemical agents can be used to control them.

Prevention and Control of Violet Diseases and insect pests

1. White rust

Symptoms: if the plant appears white rust, its leaves will initially turn yellow, and then turn brown, producing chain-shaped colorless spores under the epidermis. The pest control of this violet is as follows.

How to prevent and cure: the stone-sulfur mixture of 3-4 degrees can be sprayed in the usual maintenance process to prevent; if a disease occurs, it should be diluted to 600 times the solution with 65% Dysen zinc wettable powder.

2. Violet Fusarium wilt

Symptoms: the plant becomes shorter, obvious veins appear on the leaves of the young plants, and the leaves sag on the larger plants.

How to prevent and cure: pay attention to soil disinfection and spray with 1000 times potassium permanganate solution when you get sick. Diseased plants with serious infection should be burned in time to avoid contagion.

3. Verticillium wilt

Symptoms: the lower leaves turned yellow and wilted, the diseased plants were seriously dwarfed, and the tissue of bundle management changed color rapidly.

How to prevent and cure: same as the prevention and treatment of Fusarium wilt, the seriously infected plants were burned by spraying with 1000 times potassium permanganate solution.

4. Downy mildew

Symptoms: the leaves are drooping and even the whole plant is dead, usually caused by poor drainage and over-planting of penguins.

How to prevent and cure: too dense should be avoided when planting. If downy mildew occurs, the new fungicide A3 should be sprayed with a concentration of 2Mel 3 grams per liter of water.

5. Leaf spot

Symptoms: yellow or brown markings on the leaves, usually caused by poorly ventilated penguins with high humidity.

How to prevent it: spray with Bordeaux solution diluted to 300 times with a concentration of 1%, or spray with a solution diluted to 600 times with carbendazim wettable powder with a concentration of 25%.

6. Violet blight

Symptoms: the leaves appear round disease spot, soft rot when wet, bluish white when dry, easy to crack late; the stem is watery and dark green, and the disease part is generally constricted, but the vascular bundle does not change color, and the leaves above the affected part wilt; seedlings are susceptible, the growth point is often dark green, water stains, and dry tip after soft rot.

How to control: select disease-resistant Violet varieties, and take rotation cultivation management, at the same time the use of drugs to diseased plants.

7. Rot disease

Symptoms: root or leaf decay, generally due to insufficient light, too much watering, high humidity caused by environmental factors.

How to prevent and control: control the amount of water, pay attention to environmental hygiene, and increase lighting and ventilation.

8. Sudden collapse disease

Symptoms: the growth of seedlings is relatively thin, which usually occurs when the temperature is high and the planting is too dense.

How to prevent and cure: at the initial stage, it can be sprayed with 50% Dysenamine aqueous solution diluted 400 times; in severe cases, it can be diluted to 1000 times solution with 70% methyl topiramate wettable powder.

Conclusion: the prevention and control of Violet's diseases and insect pests should be understood by everyone who raises it. As the saying goes, even if there is no disease in the Violet, its prevention work can not be ignored, which is related to its health and even death.

How do African violets grow bugs? pest control of African violets / 2 insects and 3 diseases

As a beautiful flower, African Violet has many effects. It not only looks good, but also repels mosquitoes and beautifies the home. But when raised indoors, plants usually grow worms and get sick because of poor environment and improper maintenance. What about African violets with worms? The above are several common pest control of African violets, let's go and have a look!

I. African violets grow worms

In fact, it is not easy to grow insects and get sick when raising African violets indoors, but when operation errors lead to high air humidity, insufficient light, and poor ventilation, it is also prone to diseases and insect pests such as Fusarium wilt, powdery mildew, leaf rot, shell insects and red spiders. They will seriously affect the ornamental of the plant. In this regard, we should spray prevention and control in time after discovery.

II. Pest control of African violets

1. Scale insects

Scale insects, the main pest of African violets, generally occur in poorly ventilated and poorly lit environments. The insect generally floats and attaches to the surface of the plant leaves, and the secretions contaminate the leaves and cause the yellowing and shedding of African violets.

Control methods: Rice vinegar can be used when shell insects are few, rice vinegar can be soaked with water cotton balls, and damaged leaves can be lightly rubbed to wipe off the shell insects; when there are too many shell insects, 40% omethoate 1000 times solution can be sprayed for control, once a week, 2 or 3 times in a row.

2. Red spider

To say that African violets grow worms, red spiders also need to pay attention. It uses mouthparts to pierce the leaves of African violets to suck juice, so that the chlorophyll of the plant is destroyed, the leaves show gray-yellow spots or patches, and the leaves become withered and yellow, or even fall off.

Prevention and treatment: usually should pay attention to the observation of flowers, found that the above symptoms, timely check the back of the leaves. When individual leaves are damaged, insect leaves can be removed; when more leaves are damaged, propargite, dicofol, dimethoate, Huachongjing and other drugs should be sprayed as soon as possible to control them.

3. Fusarium wilt

In addition to insect pests, African violets are also infected during growth, the most common of which is Fusarium wilt, a plant disease caused by fungi or bacteria. There are several symptoms of the disease: severe spots, wilting or the death of leaves, flowers, fruits, stems or whole plants.

Prevention and treatment methods: after discovering the above symptoms, you can spray wilt Rick 600 times 800 times liquid, 50% carbendazim 600 times liquid, and so on. And the diseased branches were cleared and burned in time to reduce the source of the disease.

4. Powdery mildew

Powdery mildew, another disease of African violets, mainly harms leaves, tender stems, flower buds and buds. After suffering from the disease, the diseased leaves will appear a lot of white dust-like disease spots, which very affect its photosynthesis, and even lead to plant death over a long time.

Prevention and treatment methods: when the above diseases are found, the seriously diseased plants or seriously diseased parts should be cut off in time and burned centrally to reduce the source of the disease; at the initial stage of the disease, 50% carbendazim wettable powder 800 times solution, 80% Dysen zinc 500 times solution, 75% chlorothalonil 500 solution can be sprayed for prevention and treatment, and the effect is better alternately.

5. Leaf rot

When it comes to the disease of African violets, there is another disease that can not be ignored, which is leaf rot. After suffering from the disease, the diseased leaf will appear waterlogged disease spot, the disease spot around the halo; in the later stage, the disease spot expansion speed, the emergence of deep and shallow concentric wheel striated disease spot.

Prevention and treatment methods: when the above diseases are found, 72% agricultural streptomycin sulfate soluble powder or 4000 times solution of neophytomycin should be sprayed in time for prevention and treatment. In order to prevent drug resistance, you can take turns spraying once every 10 days, even prevention for 2 or 3 times can be effective.

The difference between outdoor and indoor meat & some meat introduced that they left home for 20 days in the summer of August. When they came home, they were found to be miserable, some dried to death, some rotten, and gnawed by worms. I always feel that these domestic plants have been completely domesticated now. Just like pets, they are not managed when they are separated from people at home, but they all grow well. The mortality rate of almost zero may be very high in peacetime. If you find bugs or are in a bad state, you can immediately improve the environment and make adjustments, although sometimes you simply move from one location to another. But this often becomes the key to the healthy growth of meat and meat. In this trip, there should be 1x10 deaths and injuries, and there is also a lot of potted paper available. Now there is really no time to clean up and spend most of the time on the glass pavilion, and the progress of construction is much slower than expected, but there is no hurry, because the whole surrounding area is under construction, and even if I tidy it up, I can't open it. There are more steel bars on the construction site, so it is easy to get hurt, so now we pay less attention to the meat than before, but the state is beginning to recover. Maybe there are a lot of pictures in the family, some of which were taken before, but they all feel like the meat outside or in the glass house within a month. although there is a big difference due to sunshine and ventilation, there is little difference in diseases and insect pests and mortality, and the mortality rate of open-air breeding is higher. After all, if there are weather factors that are difficult to grasp, we will begin to record these processes little by little. Although the meat in the glass room can enjoy a relatively stable environment, however, because frames, anticorrosive wood, flower racks and other shading actually have a lot of sunshine time of less than 1 hour, and those with better sunshine will have about 2 hours, so this sunshine time is far from enough, but the doors and windows are open all the year round. The ventilation is very good, and screen windows are installed, so as to prevent mosquitoes from flying in, especially the disgusting "Xuanghui butterfly". Once invaded by this guy, it will be troublesome. Later, it will be said that the temperature in the glass room will be about 3-5 degrees higher outside during the day, if the windows are not opened, it will be very muggy, so watering is not much, and some corners are even watered once a month. Most of them have an interval of more than two weeks in summer, and now the temperature drops to about 20-25, and the wind is strong every day, plus the growing season is coming. Watering is more frequent. The mortality rate of having to be watered once a week is much lower than outdoors. After all, the environment is still relatively stable, but there are many cases of strange deaths mainly caused by muggy heat. Especially when the sunshine is strong in summer or autumn, the sun shines directly on the dark flowerpot because the dark color absorbs heat, resulting in a rapid increase in the internal temperature of the flowerpot. If the local temperature is 35, the temperature inside the flowerpot is even more terrible. At this time, if it is suddenly watered, it will be over. Some white or reflective plastic baffles can be used to block it. As long as you don't let the sun shine directly around the flowerpot, [quiet Night] this row of quiet nights has a direct sunlight time of 0 every day, only astigmatism, but the futile growth is not too strong because the ventilation here is not bad, and you can change the position later. Move to a sunny place as long as the ventilation is good enough, you can have about 3 hours of sunshine every day. It will soon become beautiful ~ [brilliant] really good-looking ~ but it is also very good-looking to lose leaves in summer ~ it is normal to fall into a bare rod in hotter areas. You must not think that you will die and leave as long as the root system is fine. Yo, it will still grow well in autumn. Figure 3 below is expected to wait more than a month to recover, but now it is still very ugly [Sweden Monan] um …... The goods were very strong before leaving the door, but let me put it in a place with longer sunshine and direct sunlight on the flowerpot, so that the temperature inside the flowerpot increased sharply, and then the sauna died. Now this pot has completely disappeared, just 20 days. No, no, no. During this period, we have not yet watered it, and in summer, we are still very afraid of high temperature. I try to put it in the well-ventilated astigmatism [Bear Boy Baijin] White Bear. I don't know if this breed is not suitable for us to die in summer every summer, and then grow full again in autumn. Remember that it doesn't matter if the temperature is so high in South Africa, maybe it's because this mutated plant needs more time to domesticate ~ the lotus palm on the left is the sunburn recovery state of the lotus palm on the left. [thousand-feathered crane] this species has been bought from the greenhouse master several times, each time died in the summer, and the strangest thing is that the roots grew very well before and covered the whole flowerpot. Stop watering when it is the hottest in summer. according to reason, it should not be blackened and withered, and there is no rot, so the whole plant will be blackened directly. I have tried re-pruning and saving before, but almost all of them are ineffective, so this time I absolutely give up this breed. I suggest that you can also choose some species according to the environment of your own home and don't buy a lot of them blindly. The one that suits you is the best. This is another one put outdoors, and it's dead. [Baocaojin] the jade dew and 12 kinds of jade dew in my family seldom bask in the sun, so all those who stay in the glass room are generally placed on the bottom floor with little sunshine. Ventilation is not bad. ~ if you find a place with sunshine, you will get a little sun in a place with sunshine [unknown lotus palms-sowing] Lotus palms are very dormant in summer, especially mountain roses. There is no need to rush to put it in a place where there is no direct sunlight, just choose the coolest time in a month and pour a little water. [Lu's stone lotus brocade] when it came home, it was very small and had no roots. At that time, I was afraid that it would not grow up and could not live. Now, after the root system is fixed, do not move to. After waiting for the center to grow a few leaves, you can put it in a place with good sunshine [unknown] although there is less sunshine in the glass room, but it is best ventilated in the window. The meat in the place where there is 2 hours of sunshine every day is still very beautiful and will not be harassed by pests, although occasionally a little scale insect can be found. Once with flower protection, there is no dance in the garden. This tree is also planted by leaves. Haha ~ the meat in the open air is stronger from the point of view of the state, especially the stone lotus, but it will drop powder on the leaves affected by the rainy day, but it is still very beautiful on the whole, because there is a maximum ventilation environment and plenty of sunshine, in fact, it is not much ~ can have about 3-4 hours a day, the color is very fast, but it is also more uncomfortable when the sunshine is strong. This requires the selection of varieties as far as possible to choose some skin thick and sun-resistant, flowerpot collocation is also need to choose, light-colored flowerpot is preferred to have other colors also does not matter, can be placed to block the sun, to avoid direct exposure to the flowerpot to create a hot and humid environment, but dew cultivation is the most terrible, especially for those meat whose state is not very good, the root system is not good, or the meat is sick and wants to adjust. Dew cultivation can sometimes cause a devastating blow. After a rain comes, a large area will die. After a few days, a large number of young butterflies will appear on the leaves. The strong sunlight will burn the leaves, and even the strong wind will blow several trees. Why are you so pretentious? Hey! Isn't it a lazy plant!? In view of the above unstable factors, it is best for patients to be placed alone in places where the environment is more stable, and it is also necessary to have some understanding and selection of species, such as the genus crassulaceae. I left it almost dead outside and indoors will grow infinitely, which makes me very distressed, where should I go? no, no, no. Finally, we have to give up this breed. If we encounter continuous rainy days, the meat with good root growth can soak for more than 10 days when the weather is cool, but it will still have an impact, so it is best to build a rain shelter. It's really good to use ~ ~ it's worth having! [blue stone lotus] on the whole, the stone lotus is very thick-skinned. There are also thick leaves and windmills, so this kind of outdoors is the most suitable for sunshine and the color will be very beautiful. Don't underestimate the most ordinary beauty [Violet Queen]. She feels that she has not yet adapted to my home environment, especially in the open air, so the state has not come out [Tia] is red in South Korea. It doesn't become popular with us, just after summer ~ wait for a while to have a look! Another super thick-skinned variety, strongly recommended ~ [Moonlight Goddess] whose name sounds so good, I now feel like the moonlight night. [flower and Moon Night] this is the one that changed the pot before, a very large one, because it has been kept outdoors for 10 consecutive days to soak Rain Water's whole plant and began to rot, especially the cub next to her began to rot from the middle, pulled it out and dried it again in despair of her, and then dried it into this flowerpot, put it in a cool and ventilated place for a week, and found that all the rotten leaves had dried up. And there are signs of growth, it is really a miracle! [black mage primitive species] the following are all sunburn, but also suddenly moved from the glass house to the courtyard on the first floor without any buffer to introduce the scorching summer sun every day, and finally can not hold on. However, fortunately, after sunburn, the flesh also slowly adapted to this new environment, and after the center kept growing new leaves, it was not afraid of being burned at all. [Lotus palms] these trees were particularly badly sunburned, but it was also expected. after the late adaptation to the open-air environment, the central leaf began to grow and now it has grown completely. This is the case with the succulent plants of the genus Lotus. Rapid growth recovery [hibiscus snow lotus] the slowest recovery after sunburn, especially the rainstorm after sunny days and sunny days, it is easy to cause collective decay of the bottom leaves. If this happens, don't hesitate to clean it all. Otherwise, it is easy to cause the whole tree to rot. In the picture below, you need to clean up the leaves at the bottom and wait for them to grow again. It's really slow. [star Prince] Green lock dragons like Star Prince and money string are fine if they are sunburned, and they can heal themselves by cutting their heads or keeping them in this way. the Pagoda of Xi, which grows much faster than the stone lotus, has been excluded from my succulent list. I can't raise it every time. I found this sample paper after coming back from a business trip. So I gave up treatment. [black Prince] at present, the effect of hydroponic culture is still very good. It is suitable for some meat that already has roots but has worms in their roots. For example, these black princes of mine are actually infected with root bark beetles. But I don't have a good way to eradicate it, so I thought of hydroponics ~ soaking the roots in water directly. After a few months of growth, the old root can be trimmed off and dried a little and the whole plant can be replanted. Usually, you only need to pay attention to the water level and adjust it at any time. Hydroponics can also be exposed to Yo [unknown] and occasionally there are children to harass. The best thing about this bee is that she is basking in the sun! Are there any?! Bees bask in the sun! And rolling! [Lu's stone lotus] if you've seen enough blossoms like this, cut it off quickly ~ it's really nutrient-consuming ~ the dead leaves underneath can also be cleaned up a little bit. [quiet Night] the proudest quiet Night Children's shoes! After changing the big basin, it broke out, has been exposed, has been in the rain. So the color has always been very green, but due to sufficient moisture and good ventilation, the growth rate has doubled. Recently, the state is not so good, because the water droplets on the leaves remain on a sunny day immediately after a heavy rain after I left on a business trip. It was directly maimed by the sun, and only a few trees were damaged by the sun, and the impact was not great. Attention that can be recovered in the later stage: after being exposed to the rain, be sure to blow off the water droplets left in the center of the rosette leaves to avoid sunburn. Recently, the newly photographed Bear Boy has always been a key protection. On sunny days, the bear is usually sent outdoors to bask in the sun, and it is not regarded as exposure. If the scattered place can have about 2 hours of rain every day, if the weather forecast has rain, it will be brought back to the glass room immediately. After the rain is over, I move out again. Anyway, it belongs to moving in and out of the glass museum, so I won't be so tired. No, no, no. Similar to the white bear, the leaves still fall when it is hotter in summer, not too much, and recover quickly in autumn, as long as the sunshine and moisture keep up, they will soon be full of [chicks] as long as they are not bored, there is nothing wrong with basking in the open air. The butterfly is often used as an important spawning object to see large tracts of white eggs every day, but there don't seem to be many successful hatching. Maybe the strong sunshine can also kill some eggs. I feel that the chicks are suitable for outdoor rearing, and it is easy to grow in vain if left indoors. [Ji Qiuli] Ji Qiuli, who turns pink only when exposed to the sun for enough time, is very suitable for dew rearing, but there is also a huge flaw. This small, succulent leaf is the main target of the butterfly. It is easy to be eaten empty by a small green worm in the leaf, and the leaf itself is very easy to fall off. Fortunately, it is very easy to insert the leaves, and the growth rate is relatively fast. No, no, no. No, no, no. Ye Zhan's army depends on her. [new jade pendant] has always liked the meat that can hang very much, and it just so happens that this kind of new jade pendant feels good inside and outside. If there are more uncertain factors inside and outside, especially the long branches, it is easy to rot off the leaves due to some natural weather, and the size of the leaves is also in line with the taste of the butterfly. Like Ji Qiuli, you should pay more attention to the fallen leaves, which can be picked up and inserted. It is still very easy to succeed. Even if the growth rate is slower [Ji Longyue], this is also one of my favorites, because this kind of red is very rare, especially when it is used in combination with other succulent platters. I really never thought that she was so ordinary that she always thought that it was magical to put it in a place with plenty of sunshine in the open air, and the whole plant could turn red in a few days. If you encounter a rainy day, the color of the leaves will quickly change to green after moisture is accumulated in the flowerpot. Compared with other succulent plants, the speed of color change is faster and easier to produce beetles, and it is also the key spawning object of the butterfly, so you should pay special attention to ha ~ nothing to check the low-key luxury of [Chivalian] ! Stone lotus kind I really think she is very outstanding, raised a little more beautiful than the current imported meat yo super thick skin ~ super resistant to trouble, it is suitable for open-air breeding ~ the only thing to pay attention to is to blow off the water droplets in the center of the leaves after the rain. No, no, no. Up to now, I have not found a way to eradicate it completely, whether it is medication or thorough root cleaning. After half a year, I will still find some specific ways to remove it. See the previous blog article ~ this time, because I took a relatively clear picture, just for your reference, you must see it clearly ~ not necessarily white is the root powder. But the following must be especially able to find a lot of translucent bugs. [Tia] I introduced the "air root" here. I think this is really very common. There is no need to be nervous at all, but it is true that some of the old stumps will die because of the branches under the soil. And it can be seen that air roots grow on the branches on the soil surface. If you find it, you can just trim the cuttings again. [Clematis sylvestris] is also very suitable for open-air cultivation of fat meat ~ only in the open environment can grow perfect shape ~ [Paek Sul Hui] this is a very interesting plant, it will die when the temperature is a little lower in winter, but the parts below the roots will remain warm and then grow leaves again in the coming year. Some of them have been exposed in the yard this year, waiting for winter to see if they can spend the winter. If they can, they can be planted outdoors next year. They are almost pest-free species. I also introduced a lot of pink flower mesophore beetles before. The most annoying thing is that the liquid it secretes when eating leaves is many times more poisonous than that of aphids! It is particularly easy to cause infection, so it is found that spraying immediately BIUBIUBIU~~~ [Jinshangzhu] looks like a pearl orchid, but the actual growth rate is much slower. I don't know if it's my illusion that my house has been like this since I didn't feel like this. If I didn't grow much or lose much dew, it won't be a problem. This time because the picture is clearer than before and recently there are some new ways to prevent insects, so I will nag a little more. First of all, the "Xuanghui Butterfly" Weibo has been posted many times, giant pervert bug! Don't be fooled by appearance! This grave egg can lay hundreds of eggs in one night! Each egg will hatch into a small green worm, and then drill into the leaves to eat the small green worms, and as the body gets bigger, it will drill into larger leaves, and finally eat comfortably and wait for the cocoon to hatch into gray butterflies. The prevention of adults can only be eliminated manually, fly swatter! Or catch some spiders and put them near the flowerpot and wait for them to weave a web. The most annoying thing about this product is that it can remember the location. as long as it has been here once, it will continue to come here, and if it often brings a large group of sisters with the larvae, at present, it is still a good way to use "protecting the flower god". The preventive effect of regular spraying is still fine. it is much better than not spraying. The young green worms that have just hatched will basically be killed and the larvae will deal a devastating blow to the succulent plants like Sedum. If it is found that the most terrible thing about dealing with aphids at a certain time is the speed of reproduction, the most destructive thing is that the liquid secreted by them when they nibble on leaves will destroy the leaf surface and cause infection very easily. Some common scars and pimples on leaves are caused by them, so once found, it is necessary to clean up immediately, because the number of aphids will be more at a time. So spraying is still the first choice. If you don't want to spray, you can soak the plant in water and wash it thoroughly after 5 minutes.