How to Manage Pests
Pests in Gardens and Landscapes
Watering onions and garlic
In many areas, winter rains supply adequate moisture for garlic during the early part of the growing
season. If there is inadequate rainfall, irrigation may be necessary. For best yields, never drought-stress
garlic before the first signs of maturity. Garlic is shallow rooted, so wet to 2 feet with drip irrigation
when you do irrigate. When the crop approaches maturity (when the tops begin to break or become dry),
stop irrigation to allow drying.
Onions have a fairly high water requirement. The soils need to kept evenly moist throughout the
growing season. Water stress during the development period will affect flavor. Infrequently applied
water increases the pungency. As the onions approach maturity and the tops begin to fall over,
water should be withheld to stop root growth and allow the outer scales of the bulb to become dry.
a hose or drip tape between rows of plants