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Browse by Author: Andrew Senesac
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Are there alternatives to glyphosate for weed control in landscapes?

By: Joe Neal, Andrew Senesac

Many landscape maintenance professionals have grown reliant on glyphosate for weed control. Landscape weed control without glyphosate is certainly possible but will require more planning, careful consideration of alternative treatments, more frequent site visits, and higher costs. This publication discusses alternative treatments, their properties, uses and limitations.

Weed Control

By: Joe Neal, Jeffrey Derr, Chris Marble, Andrew Senesac

Weeds reduce the aesthetic qualities of landscape plantings and compete with nursery crops for nutrients, water, and light. Root systems compete for nitrogen and water. Even seemingly non-competitive weeds like bittercress (Cardamine spp.) have been shown to reduce growth of container-grown plants. Tall weeds and vines shade crops, reducing photosynthesis and growth. Vining weeds such as morningglory (Ipomoea spp.) are particularly damaging because they disfigure stems and new growth. In landscape plantings, weeds must be controlled or removed to maintain quality aesthetics. Weeds may also need to be removed for health and safety reasons

Preemergence Herbicides for Herbaceous Ornamentals

By: Joe Neal, Andrew Senesac

This table presents information on preemergence herbicides for herbaceous ornamentals.

Preemergence Herbicide Efficacy in Nurseries and Landscape Plantings

By: Joe Neal, Jeffrey Derr, Chris Marble, Andrew Senesac

Preemergence herbicide efficacy summary chart, Ranking the efficacy of preemergence herbicides on most weeds of nursery and landscape plantings.