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Mushroom mosquitoes Lycoria (sciara fly) - small black with a thin body about 1.5-2 mm long, lay their whitish, translucent eggs in the roots of plants. The mosquitoes themselves, if they get started, usually fly in large numbers, but do no harm. But the larvae of the mushroom gnat eat organic matter, it is believed that mainly rotting remains, including small thin roots of plants. A waterlogged substrate promotes the appearance of mushroom mosquitoes. And if the plant withers, drops leaves, turns yellow - the reason is not in mosquitoes, but in root rot from excessive watering.
Sometimes the plants are not flooded, the waterlogging was short-lived, the earth managed to dry out, the plant was not damaged, but the mosquitoes managed to hatch from the eggs. In this case, you need to properly dry all the flower pots.
Photo sciarid (mushroom mosquito)
How to get rid of midges
First of all, you need to dry the soil by sprinkling it with dry river sand two fingers thick, but this is effective if the mosquitoes have just appeared and did not have time to lay eggs. It makes sense to thoroughly shed the soil with insecticides (fufan, actellik, inta-vir, see preparations). You can transplant the plant with careful removal of old soil.
For more information about mushroom gnats and measures to combat them, see Sciarids
fly beetle remedy works well against mushroom mosquitoes. The drug is introduced into the soil surface when pests appear. After application, the preparation is embedded in the soil by loosening. Consumption rate 2-3 gr, i.e. 1-1.5 teaspoon. It is inexpensive. In my opinion, a very good and easy-to-use drug.
I advise you to spill all the pots with actara. Just do not water on dry soil (you can burn the roots). Aktara helped me right away. Bazudin did not help.
In the morning, before leaving for work, in a room where midges flew in flowers, I left the liquid fumigator on for the whole day. But I still bought aktara and bazudin. When I came home and turned off the fumigator, I was pleasantly surprised - there were practically no midges. And the two that nevertheless turned up under my arm were so lethargic and numb that it was not difficult to catch them. Absolutely all pots, even freshly purchased ones and those near which I never noticed anyone flying, were taken into the bathroom, and powdered on the wet soil with a thin layer of basudin. A day has passed - all the plants are vigorous. The mosques are not visible at all.
fumigator killed only the flying ones, but the larvae remained in the ground, so in a couple of days new individuals may appear. Therefore, it is additionally necessary to process either with actara or bazudin. Do not use both means at the same time, the soil will acidify.
My mosquitoes appear precisely when waterlogging. I try very hard not to allow this, but it does not always work out. The most dangerous time for the appearance of midges is autumn. When the batteries have not yet been turned on, and it is humid outside, the earth dries for a long time, and mushroom mosquitoes often start. I don't spill the plants, I just cut the watering a lot. After all, midges in a pot are a sure sign of waterlogging, the roots of plants can rot! If adult flies do not harm the plants, then the larvae of mushroom mosquitoes can devour the roots of flowers.