Holiday decorating? Experts say to check for these invasive pests first

As the holiday season approaches, experts are urging those who are decorating for the holidays to be mindful of potential invasive species that could be hiding in their trees, wreaths, and garland. Insect eggs from spongy moths and spotted lanternflies have the potential to wreak havoc on the local environment if not properly disposed of.

Derissa Vincentini, the community science coordinator at the Invasive Species Centre, emphasized the importance of checking holiday decor for hidden pests. She warned that invasive species do not rest, even during the winter months, and could still be lurking in holiday decorations. Christmas trees sold at big-box stores may come from other cities, potentially bringing along invasive egg masses. These egg masses, which can contain up to a thousand eggs, may not cause harm indoors but can pose a threat once they hatch outdoors in the spring.

Traditional holiday plants like English ivy, English holly, and invasive barberry can also be harmful if they end up in the natural environment. These plants can outcompete native species, impacting wildlife and insect populations. Invasive species like spongy moth caterpillars and spotted lanternflies can cause damage to forests and crops if left unchecked.

Vincentini advised people to be on the lookout for egg masses, which may be found under tree branches. Spongy moth egg masses are tan in color with a felt-like texture, while spotted lanternfly egg masses resemble a smear of mud. If either type of egg mass is found, she recommended contacting the Invading Species Hotline for guidance on proper disposal.

In addition to checking for invasive insects, experts also stressed the importance of properly disposing of holiday plants. Wreaths and garland should be thrown in the garbage, not the compost bin, at the end of the season. Plants should be allowed to rot before being discarded to ensure they are no longer viable.

Suba Sivakumar, from VanLuyk Garden Centre, suggested using native alternatives to traditional holiday plants. Winterberry holly, white pine, cedar, and red-osier dogwood branches are all safe options that can be used in holiday displays without posing a risk to the environment.

By being mindful of invasive species and opting for native alternatives, people can enjoy festive decorations while protecting the local ecosystem. With a little awareness and care, holiday decor can bring joy without causing harm to nature.