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This publication covers chemical weed control and weed response to a variety of crops.
Cool-season leafy greens face a different weed spectrum than warm-season crops. The presence of weeds in harvested greens can result in lower prices or rejection at market. Learn about the cultivation and herbicide options that growers can use to avoid weed competition and contamination.
Intensive Vegetable Production refers to a system of marketing and producing vegetable crops in which great attention is placed on detail and optimization of resources such as land, capital, labor, equipment, transportation to market and management time. The objective of such a system is maximum profit for the farm. The system you choose should take into account your location, availability of markets, production seasons and personal interest. This publication covers irrigation, plastic mulch, pest management, precision seeding, market preparation and many other facets of intensive vegetable production.
Being related to cotton, okra can be a poor competitor with weeds, particularly early in the growing season. As the crop is harvested, more sunlight can reach the soil and increase late-season weed interference. Learn about the cultivation options and herbicides that growers can use for weed control in okra.
Keeping weeds out early in the season is very important for cole crops that are marketed by size. Learn how to use both cultivation and herbicides to achieve good early-season weed control and avoid losses in yield and profits.
Weeds are unwanted plants in gardens that reduce available moisture, nutrients, sunlight and growing space needed by crop plants. Their presence can reduced crop growth, quality and yield. In addition, they can make harvest difficult. Weeds also provide cover for diseases, insects and animals (rodents, box turtles, snakes, etc.). Garden weeds are hard to control because they grow rapidly, produce vast numbers of seeds, and spread aggressively by vegetative structures and/or seeds. There are several methods that should be used in a combined, coordinated effort to control weeds. They include cultural, mechanical and chemical methods.
Weed competition in lettuce reduces both yield and head quality. This cool-season crop faces competition from winter annuals as well as early summer weeds. Learn about the cultivation and herbicide options that growers can use to control weeds in lettuce, including advice for lettuce grown with plastic mulch.
With the increasing diversity of North Carolina agriculture, it is important to document and assess the presence of the commodities produced in the state. Crop data are publicly maintained on only the top 20 or so specialty crops, yet state and federal decisions impact hundreds of individual crop species. Because little information is available for most specialty crops, it must be gleaned from many different sources.
Most commercial onions produced in North Carolina are seeded in the fall and harvested in mid- to late-June. Weed competition can reduce onion yields up to 96 percent, and weeds must be controlled throughout the growing season. Learn about the cultivation and herbicide options growers can use to keep onions weed-free in both wide and narrow rows.
A new group of cover crops for winter and summer use include mustards, oilseed radishes and turnips. When young, these plants resemble turnip greens, are very succulent and have a low C:N ratio, resulting in rapid decomposition when incorporated into the soil. However, if allowed to mature, bolt and flower, they produce a large amount of biomass in a short period of time and become woody, resulting in slower decomposition than when killed at an immature stage.