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Alien species
Alien species are species that have spread from their natural range to new areas with humans. Among the harmful alien species, especially Spanish sirenians and giant balsam occur in Riihimäki. The city of Riihimäki repels from its own lands, among other things, giant pipes, giant balsams, handsome lupines and Spanish sirens. Non-native species are taken into account in the daily operation of maintenance.
Control of alien species in Riihimäki
You can prevent the spread of Spanish snails in your own yard by picking up the slugs, removing piles of leaves and twigs, and keeping the lawn and other yard vegetation short. Check newly planted plants for Spanish hornet eggs. Water the plants sparingly and preferably during the day. Do not make open composts. And pick up dog droppings - they attract Spanish rutanas to eat! The simultaneous control of Spanish snails in a large area is important for successful control.
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For several years now, Park Services has been bringing 240-liter trash cans intended only for snails to locations selected based on the observations of the department's employees and residents. The snail dumps are placed in places that are also supported by the findings of the map surveys. Garbage can be found in the city from the map service.
First, kill the Spanish rutanas by cutting them in half lengthwise, or by crushing or dropping them into boiling water. The water should be removed before putting the snails in a closed container, for example an empty milk can.
One snail collected in the spring is hundreds of snails less in the fall. A huge thank you to all the hard-working municipal residents for this valuable work to combat alien species!
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We are about to start the Snail Control campaign. Could you be the Etanakummi of your neighborhood? For example, we would like Etanakummi to organize 1-2 snail talks in its own area so that the city's park services would deliver the necessary equipment. In addition, we hope for an active flow of information about the presence of snails and the effects of control work, and we welcome development ideas. Sign up for the activity, contact information can be found below under Contact information.
If you would like to join the active Spanish Snail Control WhatsApp group that was already established last summer, please let us know your contact information.
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Riihimäki was involved VieKas LIFE in the project (Finvasive LIFE+ project). The cooperation project focused on combating alien species and increasing alien species awareness continued until 2023.
The giant balsam control team, which started in 2017 with the VieKas project, fought giant balsam every year until the 2023 season. Get to know the group's activities by watching the prevention team's video on YouTube.
Learn more about the control of giant balsam and Spanish hornworms by watching the video On Youtube.
The city's park services will continue the fight against giant balsam.
Park services have been fighting and keeping records of giant pipes since the 1990s. Due to the long germination of the seeds, monitoring has also been done in old places where the giant pipe has not been found for years.
