The potted plant has not been kept for long, so why are there all these small black flies around the flowerpot?

Do you know what these small flying insects are? They are actually what flower lovers often call small black flies, with the scientific name "Sciaridae" (dark-winged fungus gnat), and can be understood as insects that can fly but are a bit smaller than mosquitoes. What kind of environment do they like?

They like dark and damp environments. Normally, healthy and fresh fruit will not cause small black flies to appear, but once the fruit rots, small black flies will be everywhere.

If fruit is placed next to pothos and becomes mushy and rotten, a damp and dark environment is created, and this is exactly what small black flies like most, especially oranges, peaches, bananas, watermelons, pears, and so on. After these fruits rot, the area around the fruit becomes especially damp.

In such an especially damp environment, after small black flies mate, the female can lay eggs within 24 hours, reproducing very quickly, and those eggs can become adults in less than half a month. By this analogy, you can understand why they easily become overrun.

If pothos is often given random tea leaves, coffee grounds, or leftover drinks people have not finished, these things easily breed small black flies. Although these things can be used as fertilizer, if they have not been fermented and decomposed, they will only be harmful and not beneficial to plants, and the greatest harm small black flies do to plants is biting through the root system, causing the plant to wither and die.

Some flower lovers buy potted pothos from unscrupulous sellers. If the potting soil contains undecomposed organic fertilizer, it is also very easy to produce small black flies. Everyone knows organic fertilizer is some kind of manure or other natural substance, and if it is not decomposed, it naturally easily breeds insects! When buying pothos, you should also pay attention to whether the potting soil has just been newly added.

How do you kill these annoying small black flies?

Many flower lovers say spraying pesticide is useless, but that is because the method is wrong. First, we need to know that small black flies are not only on the pothos, but also in the soil, and there are piles of eggs as well, so it is necessary to kill the insects both above and below the soil.

(Yellow sticky boards are the most commonly used. Yellow attracts these mosquitoes, but they cannot kill them all, because there are still eggs in the soil.)

The simplest method is to use "Huhuashen", mix the pesticide well, pour it into the soil, and also spray the plant evenly. Once a week, and after three or four sprays, they are gone.

Small black flies are actually fungus gnats, a type of mosquito. Do you think mosquito coils would have no effect in killing insects?