Flea beetles are infesting Winnipeg vegetable and flower gardens.

Cruciferous plants like broccoli, brussel sprouts, cabbage, alyssum and nasturtium, are under attack.

Flea beetles normally eat canola this time of year but that crop is weeks behind schedule because of the late spring. So they're finding other sources to munch on.

John Gavloski, an entomologist with Manitoba Agriculture, said there's not much gardeners can do but a protective covering could help.

"Using a row cover just to cover the plants up when the flea beetles are more abundant [but] aside from that, though, there's really not a lot people can do to protect things from flea beetles," he said.

Things should improve as the adult beetles die off in a few weeks, he added.