是专门针对蚊子的生物细菌。市政府的west Neil 项目就是用的这个,河北gatineau从1996年就用这个统一灭蚊。 全世界范围已经有大量的研究证明该生物细菌投放到死水中通过破坏蚊子幼虫的内腔杀死蚊子幼虫。对其他动物和人无毒无害。并且二十四小时之内自然分解。灭蚊同时有Carleton大学主导的研究项目研究的是灭蚊会不会影响自然保护区的食物链。灭蚊的具体操作是往各个池塘和沼泽的死水投放稀释的生物细菌,在蚊子幼虫阶段灭蚊。不是到处在公园足球场喷药。主要范围是政府拥有的自然保护区和各小区的防洪人造池塘。并会设立1-800号码供大家举报蚊子来保证灭蚊效果。
以下摘自坎屯小报
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GDG Environment won the contract to apply the bacterial pesticide known as Bacillus thuringiensis isrealensis or Bti in a nuisance mosquito program – the first of its kind in the city.
Applied in dozens of other communities, including Winnipeg and as nearby as Gatineau, the bacteria has been in use for more than 30 years. It affects only the larva of certain kinds of mosquitos and blackflies, said Roy.
The bacteria works by producing microscopic crystals that bug larva then ingest. However the crystals can only be dissolved by the alkaline environment in blackfly or mosquito larva digestive systems. It then becomes a toxic protein that destroys the insect’s stomach, according to Health Canada.
According to research, it does not affect humans, plants or animals, said Stow.
Stow had originally been against the idea of using Bti, fearing that it could have a negative affect on the chironomid population (also known as nonbiting midges) in the wetlands where it would be applied. However, after further research, Stow said any affect on those insects is extremely unlikely as it would require a much higher dosage of the bacteria than is needed for mosquitos.
Stow then said he approved of the proposed four-year program, provided studies were done to determine the effect of the program during its first three years.
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