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There is no fermentation and rotting with nutrient soil, and there are more pests and diseases in the soil, and there are more pests and diseases in the animal manure, crop straw, and scraps, and if they are directly applied to the soil, they will spread, breed, and hatch in the soil, endangering the growth of crops, and outbreaks of pests and diseases.
People who have been raising flowers for a long time often encounter the situation of potting insects, and I will briefly introduce a few methods below:
1. Precautionary Act. Before potting the potted flowers, put the potting soil into a larger old food bag, pour boiling water, tie the bag tightly, expose it to the sun for a day, and then spread it out and dry it to use, which can play a role in killing insect eggs.
2. Chemical method. Long-term dampness in the potting soil causes insect pests, insecticides can be purchased, sprayed to kill insects, and indoor potted plants should be avoided.
3. Change the living environment of pests, move the flower pot to a dry and ventilated place, bask in the sun, pay attention to timely watering, and shade-loving flowers, such as orchids and bamboos, should cover the plants and prevent sunburn leaves.
Fourth, replace the potting soil. After changing the soil, it is necessary to pay attention to shading and maintenance for a period of time before it can be transferred to normal cultivation.
Summary: It is a very common phenomenon to grow insects in the soil of planting flowers, and there are many reasons for the generation, the most important reason is that the soil is not treated well, and many germs, eggs and pests are living or overwintering in the soil. So the best way is to change the pot, that is, to change the soil.
If you haven't started potting yet, sanitize the soil before potting.
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Try carbendazim, a spectral fungicide that can be used for page spraying, seed bulbs, and soil treatments.
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When there are very small white insects growing in the soil in the pot, you can remove a layer of 5 cm of topsoil, properly loosen the potting soil, find a bucket or basin that is larger and deeper than the pot, fill the water to a higher water level than the pot, loosen the soil for three hours, soak the whole pot of flowers into a container with bottled water, slowly sink the pot into the water, sink until the water seeps out of the pot, and these small worms are easy to die after soaking for ten minutes. After ten minutes, the potted flowers are removed and placed in a sunny and ventilated place, which is not easy to dry the sun recently to prevent dehydration and death. Removing 5 cm of topsoil can be filled with other nutrient soil or humus.
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This is a leaf mite, also called spider mites, and it takes about 3 weeks from egg to adult. A loose silk web is formed on the plant, so it is sometimes mistaken for a small spider, and when the plant is severely damaged, the leaves fall off completely.
The application of mite danger 4000-5000 times (100 ml per bottle mixed with water 800-1000 pounds) uniform spray, 40% dicofol EC 1000 1500 times, 20% mite kill net wettable powder 2000 times, 15% pyridafen EC 2000 times, 1 8% zitogenol EC 6000 8000 times, etc.
Or take advantage of the feigned death of the adult worm to hunt and kill in the evening. Taking advantage of the phototaxis of the adults, trap them with a black light. When the adult worm feeds on the harm, spray it with 1000 times of 50% malathion emulsifiable concentrate.
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I can't see clearly, it may be a mealybug.
In the roots of potted flowers such as hibiscus, cactus, palmetto, jasmine, bamboo sunflower and other plants, there are often small insects covered with wax cotton and white wax powder. This is a live mealybug, which can cause potted flowers to weaken, yellowish leaves, and even the death of the whole plant.
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The soil is so fertile! It can be killed with a hundred insect spirits.
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The black bug on the flower is the thrip, which sucks the sap of the moon season and causes its leaves to become thinner. Thrips can spray imidacloprid, acetamiprid and extreme sharp at the same time, thrips will only be active at night, so it is best to choose to spray at night, or you can hang a blue sticky board on the plant in the moon**Thrips.
Some flower friends will ask what is the reason for the black insects on the moon flowers, the black insects on the moon flowers are usually attacked by thrips, thrips mainly feed on the juice of plants, mostly in autumn, the leaves that are violated by thrips will become thin and curly, and gray-white stripes will appear on the leaves.
Thrips are very resistant, spraying a drug does not have much effect on it, you can spray imidacloprid, acetamiprid and extremely sharp mixture on the leaves, these drugs are more effective, can be effective **thrips, thrips are afraid of light, generally sleep during the day and move at night, so spraying should be carried out at night.
If you don't want to use chemicals, you can buy a few blue sticky boards and hang them on the moon plants, and hang them on the same level as the moon plants, not too high. Thrips love the color blue and will pounce on the blue plate when they see it, and then it will get sticky, this method does no harm to the moon season.
Thrips are suitable for the warm, dry season, and the most effective way to prevent thrips is to control the growing temperature at 18 28 in the monthly season. When planting the month, we should pay attention to cooling in summer, pay attention to cold protection in winter, water in moderation, and do not apply too much fertilizer.
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When there are very small white insects growing in the soil in the pot, you can remove a layer of 5 cm of topsoil, properly loosen the potting soil, find a bucket or basin that is larger and deeper than the pot, fill the water to a higher water level than the pot, loosen the soil for three hours, soak the whole pot of flowers into a container with bottled water, slowly sink the pot into the water, sink until the water seeps out of the pot, and these small worms are easy to die after soaking for ten minutes. After ten minutes, the potted flowers are moved out and placed in a sunny and ventilated place, which is not easy to dry the sun recently to prevent dehydration and death. Removing 5 cm of topsoil can be filled with other nutrient soil or humus.
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Manual capture: After the insect grows in the moon, it is necessary to observe what kind of insect pest it is, and if it is a slightly larger pest, it can be captured manually. Especially for plants that are maintained indoors, manual capture is not only effective, but also does not affect the indoor environment.
Soil method control: when there is insect infestation in the month, you can make your own insecticidal solution. You can collect mosquito coil ash powder, put it in a small watering can, and add an appropriate amount of water to spray it on the plants.
Or chop the pepper, mix it with 20 to 30 times of water, and filter out the pepper water for 24 hours, and spray it on the plant, which also has a better insecticidal effect.
Pesticide control: If there are more pests in the month, it is recommended to spray pesticides. When spraying, it is necessary to use drugs according to insect pests.
If it is a scale insect, it can be sprayed with 25% chlorpylamine and diluted 2000 times. If it is an aphid, imidacloprid can be used. If it is a stinging moth, it can be sprayed with 800 times of 90% trichlorfon.
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There are dozens of insect pests that can occur during the monthly season, and the most common ones are scale insects, aphids, red spiders, thrips, stinging moths, and sawleaf wasps.
1) Scale insects. There are many kinds of scale insects, which harm the moon season, roses, and roses are mostly pseudo-rose white wheel shield and blowing cotton, often fixed on the branches of the plant to absorb the juice, so that the branches and leaves wither, when serious, the whole branch is covered by insects, like a layer of white flocculent, which can lead to death. Artificial control:
When larvae swarm, the leaves should be cut off and eliminated; Strengthen cultivation management to make plants grow vigorously and enhance insect resistance; Pay attention to soil disinfection before planting; In winter, pay attention to removing weeds and residual dry leaves, and burn them in a concentrated manner; When buying flower seedlings, it is necessary to check whether there are scale worm parasites, and once found, the worms should be brushed off as soon as possible. Drug prevention and control: 50% of the moth-killing emulsion can be sprayed with 600-800 times of aqueous solution.
In winter, Baume 3-5 degrees stone sulfur mixture can be sprayed, and 40% dimethoate emulsifiable concentrate 1000 times aqueous solution can be sprayed during the incubation period of nymphs, which has a good control effect.
2) Aphids. This insect often harms young shoots, young leaves, and flower buds, absorbs plant nutrients, and makes the leaves shrivel and curl, and in severe cases, the leaves wilt and die. The honeydew it excretes can also cause a variety of diseases.
Artificial control: during pruning and shaping during the hibernation period, pay attention to pruning the branches with insect eggs; Protecting aphids from aphid wasps, aphid cocoon wasps, aphid-eating flies, ladybugs, lacewings, etc.
3) Spider mites and thrips. Spider mites reproduce quickly in hot and humid weather in summer, often gathering on the back of leaves, spinning silk and growing, causing small yellow dots to appear on the leaves and gradually fall off their leaves. Thrips, on the other hand, infest the flowers and suck the sap of the flowers, causing them to wither quickly, and are also an important pest.
Prevention and control methods: Spider mites and thrips can be manually captured first to reduce the harm; Then kill with medicine. The above two pests can be sprayed with 80% dichlorvos emulsion 1500 times (pay attention to spraying on the back of the leaves).
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