What to Do About Small Black Bugs on Flowers? Identify the Type and Treat the Root Cause to Eradicate Them Completely

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How do you treat small black bugs in flowers?

If there are small black bugs on the surface of the potting soil, and they are the kind that can fly, and there are also transparent elongated worms in the soil, then these are fungus gnats. If the bugs are on the leaves and flowers, then these are thrips, and you must apply pesticide. I will explain separately how to prevent and control each.

Fungus gnats are especially annoying. Whenever the weather turns warm, the soil is moist and contains humus, they will breed, and they cannot be completely driven away or killed off. One option is to apply pesticide, but not long after applying it, they will breed again just the same. Very annoying.

There are quite a few methods, but I will tell everyone the most effective one and skip the others. Because growing flowers requires soil, and the soil needs nutrients, it must contain humus, which easily breeds fungus gnat larvae. These things are all connected, so the best method is to find loess and cover it over the surface of the potting soil; river sand also works. After covering it, you can smother them to death, then apply pesticide once more, and the ones outside can be completely killed. That simple!

Thrips, as shown in the picture above, these bugs are mainly on the flowers and leaves. These are the kind of long black bugs. If it is this type, you must deal with them promptly when you find them, because they reproduce very quickly. We can use imidacloprid or acetamiprid, and about three applications can effectively kill them. The interval should be more than seven days. When applying pesticide, try to choose the time when the bugs are active and frequent. One application can effectively show results. If there are small black bugs in flowers, distinguish which type they are, treat the root cause, and eradicate them completely.

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