Weed Control in Propagation: Sanitation, Mulches, and Pre-emergence Herbicides
Jennifer Gray • March 12, 2026
Weed infestations can begin in propagation then persist through the production cycle. Sanitation practices prevent the spread of weeds into propagation areas, while mulches and pre-emergence herbicides are used to suppress weed seed germination and growth during propagation. Explore best management practices for preventing weed infestations in greenhouse and nursery propagation systems. In this session, growers will learn about mulch products and pre-emergence herbicides that can be safely used in cutting and seedling propagation to reduce labor costs associated with hand weeding.
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As experienced growers retire and operations grow more complex, horticulture businesses are asking a critical question: who is coming next?
Learn how your nursery production practices can impact boxwood blight risk and your potential for outbreaks. Whether you’re currently dealing with this disease or working to prevent it, understanding key risk factors is essential for protecting your entire boxwood inventory. Join plant disease expert Jerry Weiland as he examines real-world case studies demonstrating how boxwood blight enters nurseries and spreads via common production activities. This webinar will cover critical factors that influence disease development and spread, including plant size and spacing, cultivar selection, environmental conditions (temperature and moisture), and fungicides. You’ll leave with practical management recommendations and actionable strategies for preventing and controlling boxwood blight in your operation.
HRI recognizes outgoing trustees Leigh Geschwill and Ed Bemis for outstanding service and stewardship
