The B.C. government will be spraying insecticides over sections of eastern Vancouver Island for an invasive species of sponge moths, which can have devastating impacts on forested areas. (Government of B.C.)

By Jordan Davidson

early morning spraying

Aerial spray treatments for invasive moths coming to Vancouver Island

Apr 17, 2024 | 12:59 PM

NANAIMO — Spray treatments for an invasive moth species will be happening across eastern Vancouver Island this spring.

Attempts to eradicate the invasive spongy moths, also known as Lymantria moths, will occur in Nanaimo, Qualicum Beach, Salt Spring Island, Cowichan Bay, North Saanich and the Greater Victoria area from the end of April until mid-June.

A release from the ministry of forests said they are planning three applications of the insecticide during that time, with each treatment occurring a week to 10 days apart, and could take up to two days to complete.

The first treatment for the Hammond Bay area of Nanaimo and in Qualicum Beach is scheduled for May 10, while Salt Spring Island will see treatments on May 3 or 4.

Each spray is expected to start at first light and end no later than 7:30 a.m., with changes subject to weather conditions.

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The insecticide used in the spraying, Foray 48B, is used in organic farming and only affects the moths and their caterpillars after it’s ingested.

The moths pose a risk to B.C.’s ecosystem, as their caterpillars feed on tree leaves and can cause serious damage to forested areas, with damage seen in areas of Ontario and the eastern United States in recent years.

More information on spongy moths and the upcoming sprays can be found here at the government’s website, or by calling 1-866-917-5999.

A map of treatment areas as well as information about pesticide-use permits can be found here.

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jordan@nanaimonewsnow.com

On Twitter: @JordanDHeyNow