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This publication covers chemical weed control and weed response to a variety of crops.
The objective of this leaflet is to discuss orchard floor management options in pecan orchards, along with herbicide considerations, and potential herbicides. It should be used as a guide for producers making orchard floor management decisions.
Orchard management guide for apples, with information on insect, disease, weed, and mammal control, plus horticultural and fertility practices, use of IPM, prevention of insecticide resistance, and sprayer calibration.
This publication is intended to help you manage diseases and pests of peaches. In choosing a management program, you must weigh the extent of pesticide use against the amount of risk of crop damage you are willing to accept. A rigorous spray program provides the least risk of loss, whereas a minimal spray program using less effective but possibly less hazardous pesticides involves a greater risk of loss.
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.
This factsheet describes the symptoms of a protoporphyrinogen oxidase inhibitor herbicide injury.
This factsheet describes the symptoms of a photosystem II (PS II) inhibitor herbicide injury.
This factsheet describes the symptoms of a carotenoid pigment inhibitor herbicide injury.
This factsheet describes the symptoms of a metribuzin herbicide injury.
This factsheet describes the symptoms of natural oil and acid herbicide injuries.
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.
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.
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.
This factsheet describes the symptoms of a photosystem I (PS I) inhibitor herbicide injury.
Grapes are subject to attack by many different pests, including nematodes, fungal, bacterial, and viral pathogens, insects, and wildlife, such as deer and birds.Weeds, which compete with the vines for soil moisture and nutrients, may also be included in this list. Recognizing and understanding the nature of these pests is essential to minimizing crop losses.This chapter briefly describes the major pests that routinely threaten bunch grapes in North Carolina and discusses control measures.
This factsheet describes the symptoms of cellulose-inhibiting herbicide injuries.
Growing strawberries as an annual crop on black plastic requires a different weed management strategy than the perennial matted row strawberries. When black plastic is combined with fumigation by methyl bromide, excellent control of most weeds in the row can be expected. However, weeds that have hard seed coats, such as vetch and clover, emerge for long periods of time and 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.
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.
This factsheet describes the symptoms of a shoot inhibitor herbicide injury.
The objective of this leaflet is to discuss weed-control considerations and herbicide options for grape vineyards in the Southeastern United States. It should be used as a guide for growers making vineyard floor management decisions. It should not be used as an alternative to a pesticide label.