Dakota Gardener: The biggest threat to our gardens

What’s the biggest threat to gardens today in the Dakotas?

It is herbicide misuse. Nothing else comes close.

Gardeners send me over 1,000 photos of sick plants every summer. The most common photos are of tomato and potato vines that are mysteriously twisted and curled. In many cases, nearby tree leaves are stretched and cupped.

These symptoms are caused by herbicide injury. Today’s herbicides are...