Bugs that are harmful to plants, are bugs in potted plants harmful to people?

As long as it is herbivorous, most of them are harmful, grasshoppers (locusts), cicadas, moths, and butterflies.

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.

No, there is no way to do the psychological effects. In the flower pots, there are generally beetle mites or jumping insects or something, which mainly feed on humus and are harmless to people.

It's not harmful to people, it's harmful to potted plants.

<> if it is a plant-based insecticide or a homemade organic insecticide, as long as it is applied rationally and the correct application method and concentration are adopted, there is basically no harm to the plant. If it is a household mosquito and cockroach insecticide, then there may be some damage to the plant, although the damage is not great, but it should also be noted, if you must use it, you also need to grasp the concentration.

1. Do pesticides harm plants?

1. Whether the insecticide is harmful to the plant, mainly depends on what kind of insecticide, if it is a plant-based insecticide or a homemade organic insecticide, as long as it is applied reasonably, there is basically no harm to the plant; If it is a household mosquito and cockroach insecticide, then it may cause some damage to the plant, although the damage is not great, but you should pay more attention, even if you want to use it, you must also grasp the concentration, so as not to cause harm to the plant due to excessive concentration.

2. There are many types of pesticides, generally including organic insecticides (organochlorine, organophosphorus, organosulfur preparations and carbamate and pyrethroids), inorganic insecticides (inorganic arsenic, inorganic fluorine, inorganic sulfur preparations), vegetable insecticides, mineral oil insecticides, and microbial insecticides.

2. Precautions for the use of pesticides

1. It is best not to use pesticides when they are not needed. Although it plays an extremely important role in increasing agricultural production and solving the problem of human food, it is also the most important factor causing pesticides to pollute the environment.

2. Household spray insecticides must be in appropriate amounts, otherwise they will pollute the living environment and cause headaches and other symptoms. Also wear a mask when spraying, and be careful not to spray on food, dining utensils, furniture, and bedding. After spraying, you should leave the room in time, and open the doors and windows after half an hour to disperse the smell.

3. Keep the insecticide properly, store it in a cool place to avoid invalidation, and keep it out of the reach of children.

4. Spray insecticides should not be in contact with open flames to avoid accidents.

5. Long-term use of the same insecticide can make pests resistant, when the effect is not significant, it is necessary to replace another insecticide or choose other brands of insecticide products in time.

6. There are a variety of pesticides on the market, please read the relevant instructions carefully when purchasing, and purchase according to your own needs.

It is divided into direct harm and indirect harm, and the direct harm is that adults and nymphs suck the sap of plants, causing leaf curling, distortion of young stems, and necrosis of growth points, resulting in reduced yield; Indirect harm means that aphids can transmit a variety of viral diseases while directly harming them, causing slow plant growth, yellowing and deformation of leaves, causing more serious harm. It mainly has its excrement honeydew, which is transparent and sticky, which plays a blocking role in the physiological activities of flowers, and is a good medium for pathogens, which is easy to induce soot disease.

Aphids are also important for viral transmission**; Clustering damages young leaves, tender leaves, flower buds and other parts, resulting in the development of flower deformity, irregular wrinkling, curling, falling off on the back of the leaves, flower bud deformation, flower reduction or smallening, and even the whole plant withering and death. ​

The harm of aphids is divided into direct harm and indirect harm, the direct harm is that adults and nymphs suck the sap of plants, resulting in leaf curling, young stem distortion, growth point necrosis, resulting in yield reduction; Indirect harm means that aphids can transmit a variety of viral diseases while directly harming them, causing slow plant growth, yellowing and deformation of leaves, causing more serious harm.

It should be an aphid.

Aphids do not overwinter in the south, in the north to the adult overwintering, can also fertilize eggs to overwinter, in peach trees, wheat, greenhouses and other places to overwinter, when the temperature is suitable in spring, the eggs hatch into the dry mother, parthenogenesis 2 or 3 generations. In early summer, winged migratory aphids were transferred to vegetables, fruit trees, cotton, wheat and other crops.

Parhenogenesis reproduces for several generations to more than 20 to 30 generations, and in late autumn the winged female and male aphids migrate from the second host to the first host again. Winged female oviparity gives birth to female aphids, and females mate with winged males to lay eggs for overwintering. Aphids reproduce very quickly, occurring more than 20 to 30 generations per year, and are the fastest reproducing pests.