No-Hassle White Grub Control

(The Less You Do, the Fewer You Will Have)

juillet 22

In most areas, damage to lawns from white grubs begins to appear in July. You’ll see patches of yellowed, dying grass appear here and there. When you pull on these patches, they lift right up with no effort and you can see grubs (plump whitish C-shaped larvae) in the soil underneath. Also, different animals, including skunks, dig holes in the lawn in search of grubs, thus signaling their presence.

To try to control white grubs, learn not to mow too short (never below 3 inches), because adults (June bugs, European chafers and Japanese beetles, all large beetles) prefer to lay their eggs in short grass. In addition, mowing the grass short stresses the lawn itself, so when when grubs are present, it suffers to a greater degree (long grass lawns can sustain considerable grub populations with no obvious symptoms). Always leave grass clippings on the lawn, as they repel adults. Also prefer a lawn containing a good portion of plants other than grass – clover, thyme, ground ivy, etc. – as adults prefer lawns largely composed of turf grasses. Learn to tolerate the presence of small ant nests in the grass, as ants greedily consume beetle eggs. Finally, avoid watering the lawn during drought, as grubs die massively when the lawn goes summer dormant.

And there you go: lots of tips on dealing with grubs, simply by doing less work rather than more!

Larry Hodgson is one of Canada’s best-known garden communicators. He has notably been editor-in-chief of HousePlant Magazine, Fleurs, Plantes et Jardins, À Fleur de Pot and Houseplant Forum magazines and is currently the garden correspondent for Le Soleil and radio garden commentator for CKIA-FM Radio. He has written for many garden publications in both the United States and Canada, including Canadian Gardening, Harrowsmith, Horticulture, Fine Gardening and Organic Gardening. He also speaks frequently to horticultural groups throughout Canada and the U.S. His book credits include The Garden Lover’s Guide to Canada, Complete Guide to Houseplants, Making the Most of Shade, Perennials for Every Purpose, Annuals for Every Purpose, and Houseplants for Dummies, as well as nearly 60 other titles in English and French. He is a past president of the Garden Writers Association (now Garden Communicators International) and the winner of the prestigious 2006 Garden Media Promoter Award offered by the Perennial Plant Association. He resides in Quebec City, Quebec, Canada.

1 comment on “No-Hassle White Grub Control

  1. Good advice. Also mowing grass short just promotes weeds. And raising the lawnmower blades to midway makes it easier to push the mower. Love lazy tips.

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