Fungus gnats are also known as common plant pests from families Mycetophilidae and Sciaridae which are found in moist and humid conditions. They are usually seen as harmless insects flying around plants. The adult gnats do not bite but can become a flying nuisance. With these insects around, you are most likely to have larval stage gnats which can damage tender plant roots. Adults live only up to a week or so but within this span of time they lay up to 300 eggs. And within the week this tiny larvae begin feeding on plant roots. They cause a plant to sudden wilting, loss of vigor and poor growth. Fungus gnats favorite plants are geraniums, African violets, carnations and poinsettias.
So, how do you get rid of these gnats?
First off, thoroughly inspect plants before purchasing. If you can buy plants without gnats then you have one problem less in taking care of the plants. Turn the soils carefully near the base and try to look for glossy and clear larvae. If at first glance you see flying gnats upon inspection, it is better not to buy the plant.
If you happen to buy plants with fungus gnats then you have to make sure not to overwater them. During winter months use less water. Avoid water holding material such as peat moss. This is a conducive place for gnats to lay eggs. If there are pests present, allow the soil to dry. This will make egg laying female gnats less attracted to the soil. Then apply a gnat solution chemical that will lessen the population. Insect killers can also help get rid of gnats but use only those which are friendly to plants. Natural solutions also include peppermint, cinnamon and sesame oils. Spray these non toxic elements to get rid of those pesky pests.
To totally eliminate the fungus gnats, make sure that you just not get rid of the flying gnats but especially those which are still at larvae stage. By eliminating these pests, you will have a healthier and more blossoming/flowering plant.
For more information on how to tackle these gnats, click on http://www.cxhydroponics.com/main/dealing-with-fungus-gnats/.