Mosquito plague despite BTI: Mayor cannot spend tablets!

Mosquito plague despite BTI: Mayor cannot spend tablets!

The problems with mosquitoes are a recurring topic in Au am Rhein (Rastatt district) that affects the garden owners in the region. Especially the use of BTI tablets that work with the biological active ingredient Bacillus Thuringiensis Israelensis is a much-discussed means to combat mosquito larvae in water vessels. According to swr , the free submission of these tablets is currently more difficult. The EU Ordinance on submitting biocidi is perceived as a hindrance, especially during the high season for snacks.

Currently, garden owners can only receive BTI tablets once a week from the local forester, who must show certificate of expertise. Mayor Veronika Laukart, who is storing BTI tablets in the town hall, is not entitled to issue them because she has no such evidence. The tablets are kept in a safe in the town hall, while the municipal campaign community to combat the schnaken plague (KABS) is unable to deliver new units, since their employees also have no certificate of expertise.

Use and meaning of BTI

The scientific director of KABS, Dirk Reichle, emphasizes BTI's importance in the fight against the Asian tiger mosquito, which can transmit dangerous viral diseases. In recent years, an estimated 60,000 BTI tablet units have been issued to affected garden owners. Online training for KabS employees is planned to enable the output of the BTI tablets again.

BTI works by killing the larvae of mosquitoes in the water by damaging their intestinal cells. It has a broadband effect on all mosquito mosquito species and on non -teaing sugar mosquitos, which represent an important source of food for many animals. However, studies show that the use of BTI causes significant reductions in the population of mosquitoes and mosquitoes, which can also have negative effects on the food chain, as BUND nature conservation reports.

The comprehensive control of mosquitoes, according to the federal government, often ignores the ecological relationships and can harm more than benefit. Mosquitoes live not only in waters, but also in other habitats, so that fighting on the water could be ineffective. The animals have a radius of up to 20 km, which means that treated areas are not guaranteed to remain free of mosquitos.

ecological context and risks

Additional concerns about the use of BTI arise from current studies. Researchers of University Koblenz-Landau have examined the sensitivity of the mosquito art chironomus riparius compared to this bizid. The results show that younger larvae stages are more sensitive to BTI than older people, which indicates a potential exceeding of the risk wave factors. These findings suggest that the risk of other animal groups in treated protected areas cannot be excluded.