district of Wesel.
Somer is also mosquito time: Which areas do the often annoying insects prefer in the district of Wesel? And what favors their spread?
When it gets warm outside, you suddenly hear buzzing and buzzing everywhere. Or is it perhaps simply because we are now increasingly sitting outside? For experts like Klaus Kretschmer from the Biological Station in the district of Wesel, who focuses on insects, it is normal to observe what crawls and flees in nature all year round. What about mosquitoes, for example, which are often rather annoying to humans? How does the current weather situation affect their distribution?
The Biological Station does not have precise data. At the moment it’s not that dramatic, Klaus Kretschmer gives his impression. He was recently out and about in Mecklenburg-Western Pomerania, where he noticed many more mosquitoes than here. “We’ve had worse years on the Lower Rhine.” The managing director of the biological station refers to the year 2016, when extreme rainfall was responsible. “The water stood there for a very long time and then it got warm,” says Kretschmer – and these are exactly the ideal conditions for mosquitoes. How the number of mosquitoes develops is therefore strongly dependent on the development of the weather in the coming weeks: “It could be more.”
Containers in the garden are popular with mosquitoes
According to Kretschmer, the mosquitoes that are usually known here have a short development phase: two to four days as an egg, one to three weeks as a larva, the pupa needs two to four days before it hatches – heat accelerates this process: “They transform completely like butterflies”. , explains Kretschmer. Smaller bodies of water are particularly interesting for the mosquitoes, it doesn’t have to rain much. Kretschmer points to containers such as bird baths, watering cans or rain barrels, which usually remain in the garden in summer with little water and are therefore popular for mosquitoes to lay their eggs on the water surface there. Kretschmer therefore recommends letting such containers dry out in the garden if you want to prevent them from attracting many mosquitoes. And of course always helpful: the mosquito net as protection.
Mosquitoes like to be where it’s damp, they prefer semi-shady areas – which are they in the district of Wesel, for example? For example in a moor-like landscape like in the Diersfordt Forest or the Dusk Forest, according to Kretschmer. In the meantime, quarry ponds or the banks of the Rhine are not so popular spots for the insects, “the many fish there are natural enemies,” says Kretschmer. It is different with the old arms of the Rhine, for example, they are not that deep, often standing water.
In the Bislicher Insel area, he had not recently noticed that there were more mosquitoes, as did the chairman of the nature conservation association (Nabu) in the district, Peter Malzbender. “I’m happy about every insect that flies,” he emphasizes. Because, as is well known, there is a lack of insects – and therefore of bird seed. Recently, some garden owners had turned to the Nabu because many tit young had died.
This is how it is with wasps, bees, butterflies and co.
What is the current situation with other insects in nature? “wasps peak in July,” says Peter Malzbender. Anyone who then observes nests on the house can contact the lower nature conservation authority of the Wesel district.
Meanwhile, when the wasps show up, this will end bee year – “It lasts from April to the summer solstice,” says Carsten Cebulla from the Moers beekeeping association. “Now the bees are preparing for the winter.” So far it has been a good bee year, according to the beekeeper. Unlike the previous one on the Lower Rhine, “the wrong weather at the wrong time,” says Cebulla. This had an impact on honey production.
butterflies are known not to sting – and are nice to watch. According to Klaus Kretschmer, they are available all year round. According to Malzbender, many can be discovered from the coming month – for example in the natural arena Bislich. There is, among other things, a butterfly garden.
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