Expert Column

Hand weeding vs. Herbicides

For a commercial nursery operation, weed control is vital. Weeds compete with desirable nursery stock for water, nutrients and space. In addition, weeds host and attract pests and diseases. Not only does the nursery and greenhouse stock need to be weed-free, but the grounds need to be clean as well to avoid contamination. Maintaining a comprehensive weed control program must be a top priority for nursery operators. More

Common chickweed

This weed is often found in container-grown nursery ornamentals because it favors well-watered areas.

Thrips

Less than 2 mm long, these tiny insects damage plants by feeding on and laying eggs on leaves and foliage.

Powdery mildew

Spores of this common plant disease are carried by wind, and although powdery mildew prefers humid conditions, it can germinate and grow without water.