Beneficial bugs? You better bee-lieve it! - BC SPCA
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Beneficial bugs? You better bee-lieve it!

May 16, 2022

As we head outside to tend our yards and gardens, an unseen — and often underappreciated — world of work is happening all around us. Beneath our feet and overhead, insects of all kinds are busy helping to propagate and protect plants.

Photo credit: Jay Bessembinders

“There’s an astonishing diversity of insects here in British Columbia,” says Erin Ryan, BC SPCA wild animal welfare specialist. In fact, our province is home to an estimated 30,000 to 40,000 different species, and each has an important role to play in the ecosystem. Some, such as ladybugs and lacewings, help defend plants by eating the insects that feed on them. Others, such as bumblebees and swallowtails, help plants reproduce through pollination.

Knowing what roles insects play can help us design and maintain our green spaces in a more natural — and environmentally friendly — manner. “We can support beneficial insects by making our yards and gardens more attractive to them,” says Ryan. “Once there, they’ll do the work for free!” She suggests the following strategies to bring on the bugs:

  • Think local. Choose native plants adapted to your local climate. This attracts native insects who, in turn, attract other helpful native wildlife species such as birds.
  • Diversity is key. Different plants attract different insects. Having a variety also ensures that food is available to insects at different times of year.
  • Think in 3D. Provide horizontal and vertical plant structure (e.g., herbs, shrubs and trees) to create a choice of microclimates and provide insects with shelter from inclement weather.
  • Say no to drugs. Even pesticides with low toxicity, such as soap, can still harm beneficial insects.
  • Tidiness is overrated. Let an area ‘go wild’ with grasses, weeds, wildflowers, logs and brush, and allow leaves to pile up for insects to hide, nest and overwinter in.
  • Water woes. Insects need water, too! Provide some in a shallow dish filled with rocks to keep them from drowning.
Yellow and black butterfly on white flowers
Photo credit: Christie Tujik

Ultimately, attracting beneficial insects will help reduce our reliance on chemicals and boost our biodiversity. “Many insects are already hard at work in your yard or garden,” says Ryan. “Why not do what you can to encourage them?”

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