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This is a normal phenomenon, there will definitely be insects, and you can kill them regularly.
Plant ash. Grass ash is the ash left over from the burning of straw and so on, and plant ash is a good flower fertilizer. Grass ash can promote the growth of flower and grass roots, and can also improve the ability of plants to resist diseases, drought, and lodging.
Spraying 3-5% of the plant ash leaching solution also has the effect of controlling aphids, red spiders and other pests. You can also directly sprinkle the plant ash on the surface of the pot soil, spray a little water to let the plant ash melt, and generally control aphids, small black flies, slugs and so on.
Egg shells. The eggshells left over from the eggs we usually eat are good flower fertilizer, which can be sprinkled into flower pots after being exposed to the sun and crushed, which can prevent snails, slugs and other pests.
Mothball. Mothballs are also a more effective way to prevent insects, and the use is also very simple, directly crush the mothballs, and sprinkle the crushed dust on the surface of the soil, which can prevent mosquitoes, flies, cockroaches, and some small insects in flower pots. There are also some kitchen spices such as garlic, ginger, pepper and other solutions made of spraying plants can also prevent some pests, that is, pay attention to ventilation when using, or the smell will be very rushing.
In addition, soaking in tobacco and water, dish soap, etc. can also effectively remove aphids.
If it is their own humus soil, although spring is suitable for planting new potted plants, but it is recommended to prepare the soil in winter, which has many benefits, in winter, because the temperature is particularly low, some small insects will also freeze to death, so the soil found in winter is relatively clean, and there will be no insects. The easiest way to disinfect the soil is to disinfect and kill insects in the sun, of course, before exposure, put it in a sealed bucket or plastic bag, do not leave a breath opening, stuffy for ten days, if possible, put it in a place with high temperature, so that the small insects that can be seen by the naked eye will basically be much less, and you can't see it. Then pour out the soil and spread it out and put it on the roof and terrace tiles to expose to the sun, which has the best effect in summer.
If there is extra time, the second thing is to pour boiling water into the soil, boiling water to disinfect and kill insects, sprinkle some quicklime, and more careful flower friends will even use a microwave oven to disinfect and kill insects.
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Yes. You need to apply the medicine regularly.
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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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Flies are born in flower pots, mainly because the pot surface is not clean or the potting soil is buried in ripe material, and the flies that are not buried deeply.
One: clean the pot topsoil layer up to 5-7 cm, after filling with new pot soil, can mainly remove a large number of eggs in the topsoil layer to reduce the number of flies, fill in the topsoil of the new soil is best sprinkled with a layer of quicklime, mainly play a role in preventing the larvae in the deep layer to climb up can be eliminated in the quicklime at the same time can prevent flies from laying eggs in the topsoil, so that it is a better and more effective way to remove flies.
Two: you can use fly sticker paper to rent lead tape on the basin surface, as long as there are flies flying to the basin surface or drilling to the basin surface to lay eggs, it is easy to stick to the paper, which can reduce most of the flies.
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