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Japanese stiltgrass (Microstegium vimineum) Identification and Management: Brief Description: Japanese stiltgrass (also known as annual jewgrass, bamboograss flexible sesagrass, Japanese grass, Mary’s grass, microstegium, Nepal microstegium, or Vietnamese grass) is a summer annual commonly found in shady, moist areas, and is spreading rapidly in woodlands as well as shaded landscapes and low maintenance turf throughout the southeastern U.S., Mid-Atlantic States and north to New England. Japanese stiltgrass germinates in early spring, several weeks before crabgrass, yet flowers and seeds much later, from mid-September through October. It has broader, shorter leaves than most other annual grasses; somewhat resembling broadleaf signalgrass or spreading dayflower. After frost, the foliage and wiry stems turn a distinctive light tan in color and persist through the winter. Vegetative identification characteristics include: rolled vernation, a very short membranous ligule, and leaf blades that are shorter and broader than most other grasses.
This publication provides an introduction to AI-enabled robotic weeders, their benefits to society, and how this technology can be used in North Carolina's agriculture sector.
This publication covers chemical weed control and weed response to a variety of crops.
This appendix from the Extension Gardener Handbook will help readers to understand the impact of pesticides on our environment, know when to use a pesticide, how to read its label, and how to apply it safely and to understand the signal words and their associated levels of toxicity.
This publication discusses a number of options that are available to the greenhouse manager for controlling weeds such as creeping woodsorrel, hairy bittercress, spotted spurge, and others. Not only are these persistent problems in greenhouses but they detract from the perceived quality of plants produced, and also are known to harbor insects, such as whitefly and thrips, and other pests such as mites, slugs and snails.
This pesticide factsheet covers the use and characteristics of the herbicide, glyphosate.
This chapter of the North Carolina Organic Commodities Production Guide discusses cultural, mechanical and chemical tactics used for weed control in organic farming.
This pesticide factsheet covers the use and characteristics of Casoron (dichlobenil).
This publication covers the identification, distribution and control of mulberryweed, an erect, branching, summer annual weed of landscapes and container nurseries that resembles a mulberry tree (Morus spp.) seedling. A native of eastern Asia, it was introduced into North America in the latter half of the 20th century.
Growing strawberries as an annual crop on black plastic requires a different weed management strategy than the perennial matted row strawberries. Weeds that have hard seed coats, such as vetch and clover, emerge for long periods of time can establish in the row. They emerge in late fall or spring, grow under the plastic for a period of time, and emerge from any holes in the plastic.
This appendix from the Extension Gardener Handbook includes tables to help gardeners identify common problems and management strategies for fruits, vegetables, and ornamental plants.
Supplemental hand weeding accounts for the majority of landscape bed maintenance costs. When used exclusively, it can cost 10 to 100 times as much as an effective herbicide or mulching program. However, many of the costly and unsightly weed problems can be avoided or at least minimized with a little planning. Developing a landscape weed management plan involves five basic steps.
This publication discusses the impacts of yellow nutsedge on sweetpotato crops and includes information on weed identification and management.
This pesticide factsheet covers the use and characteristics of Pendulum, Aquacap, Corral (pendimethalin).
This pesticide factsheet covers the use and characteristics of Ornamental Herbicide II (oxyfluorfen + pendimethalin).
Palmer amaranth is the most common and most troublesome weed in North Carolina sweetpotato. This publication discusses Palmer amaranth identification, reproduction and growth habit, impacts on sweetpotato yield and quality, and weed management options.
How often are you weeding? Is it frequently enough to prevent the next generation of weeds? Many of the most common weeds of container nurseries flower and produce seeds within 30 days. Our research suggests that you should be removing emerged weeds every 2 to 3 weeks. This publication offers information on some common container weeds.
This pesticide factsheet covers the use and characteristics of Broadstar (flumioxazin).
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
