Winnipeg to start spraying for tree caterpillars next week

Tree pest caterpillars are back in Winnipeg, meaning the city will soon start spraying to control them.

The city said it plans to start spraying trees Tuesday night. Spraying will happen on weekdays for the next four weeks as long as weather conditions are favourable.

The first locations for spraying are Crescent Park, Point Road, Wildwood, and Rockwood.

The city said it focuses on areas where there are a lot of caterpillars and it is noticeable that trees are starting to defoliate.

The city uses Btk, which is an organic product sprayed directly onto tree leaves.

“Once Btk is ingested by the tree pest caterpillars, they stop feeding and die approximately three days later,” the city said in its news release.

Winnipeggers can request a buffer zone around their home, which would prevent spraying within 30 metres of their property.

People must submit the application a minimum of 72 hours before spraying takes place in their area.

An application can be sent online, by emailing or faxing 311, in person, or by mailing the Insect Control Branch. The application must include a letter and photo ID showing the address to avoid.

More details about the spraying process can be found on the city’s website.