Chironomids at home, useful tips

Chironomids at home, useful tips

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Chironomids in the house: remedies for insects that resemble mosquitoes but lack a sucking system. They are called Chironomids and proliferate near lagoons and canals. Solutions to eliminate them.

That ofChironomidsis a very large family. In appearance, these insects, they aresimilar to mosquitoesbut they are notbloodsuckingas well as the female mosquito. This family is very large, so much so that in Europe the need was felt to classify it into eight subfamilies. In Italy ichironomidsthey are little studied, however over 400 species have already been observed, among this, the one we encounter most frequentlyin homeis the Chironomus plumosus, shown in the photo above.

Chironomids, algae and other consequences

The most common species are theChironomus pulmosusand Chironomus salinarius, these specimens, for a long time, have become the nightmare of those who live near canals or lagoons. Chironomus pulmosus develop mainly in fresh waters while Chironomus salinarius develop in brackish waters such as the case of the Venice Lagoon.

Several researches have highlighted a correlation between the increase in the populations ofchironomidsand the phenomenon of water eutrophication. The spread ofalgaeit is not the only consequence of the increase inchironomids. The spread of these annoying insects sees a strong increase in allergic phenomena, especially allergies due to inhalation (asthma) and contact (especially conjunctivitis).

Chironomids, life cycle

Females layegg massesin water. The female of Chironomus pulmosus lays 400 to 800 eggs.

The eggs, even if deposited on the surface, increase in volume and settle on the bottom of canals, lagoons, lakes, ponds… From the eggs hatch larvae that feed on any organic debris. The larvae spend the entire winter in water and with the increase in temperatures, between spring and summer,flickerand they tend to colonize urban environments. They are attracted to the lights.

Chironomids, breeding

Even if we humans consider them annoying insects, there are those who are interested in starting various forms of farming. THEchironomidsthey are useful from an environmental point of view, in particular we are talking about the larval stage. Larvae are the food base for ichthyofauna and for a large number of predatory freshwater animals. It is for this reason that some companies breed chironomids and then market their dried, freeze-dried, frozen or processed larvae into pods and tablets to be used as fish feed. Chironomids are also used as bait by fishermen hunting for cyprinids.

Chironomids, biological struggle

As stated, ichironomidsin larval form, they form the food base of many fish and aquatic predators. The biological fight against chironomids should be carried out above all in marshy areas or areas rich in canals such as Scafati in the province of Salerno, Orbetello in the province of Grosseto or in the lagoon of Venice itself.

The common toad is a great predator of chironomid larvae, as are the black redstart (the bird Phoenicurus phoenicurus), the spotted newt (Triturus vulgaris) or crested, salamanders and other insects such as dragonflies and damsels.

Chironomids in the house

In spring and summer it is not uncommon to come acrosschironomidson the porch of the house. These insects rest on glass, walls and ceilings of the house.

THEchironomidsthey can be eliminated with normal household insecticides to be applied directly on the walls of the house and on the windows. When placed on the walls, they can be easily vacuumed with a vacuum cleaner.

Interventions with classic spray insecticides that are commonly used to kill mosquitoes and flies are not very effective. Those who have a garden pond will have to provide continuous prevention by diluting effervescent tablets with larvicidal action in water, also useful for preventing mosquito and tiger mosquito flicker.

Video: How to Fish: Chironomid Fly Fishing Strategies. GoFishBC (May 2022).


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