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Annual and perennial grasses can be selectively controlled in most broadleaf crops and landscapes using postemergence herbicides that control only grasses -- chemicals often referred to as “postemergence graminicides”. There are four graminicides labeled for use in horticultural crops – fenoxaprop, fluazifop-p, sethoxydim and clethodim. Each graminicide is systemic (translocated) and has short-term soil residual (about 2 weeks). Although each herbicide kills grasses in the same way (acting upon the same site of action), they differ in their effectiveness on grass weeds, safety on crops, and labeled uses.
This pesticide factsheet covers the use and characteristics of the herbicide, glyphosate.
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 postemergent herbicide Acclaim Extra (fenoxaprop-p).
This pesticide factsheet covers the use and characteristics of Dimension (dithiopyr).
This pesticide factsheet covers the use and characteristics of the preemergence herbicide Barricade, Prodiamine or Regalkade G (prodiamine).
This pesticide factsheet covers the use and characteristics of Casoron (dichlobenil).
This pest control guide was a project of the Southern Nursery IPM Working Group (SNIPM) and collaborators. It is intended to provide up to date information about pest control products used in nursery crops and ornamental landscape plantings, and as a supplement to the more comprehensive integrated pest management (IPM) manuals for trees and shrubs. Recommendations for the use of agricultural chemicals are included in this publication as a convenience to the reader.
This pesticide factsheet covers the use and characteristics of Scythe (pelargonic acid) or Axxe (ammonium nonanoate).
This pesticide factsheet covers the use and characteristics of Sedgehammer (halosulfuron).
This pesticide factsheet covers the use and characteristics of Marengo (indaziflam).
This pesticide factsheet covers the use and characteristics of the herbicide Dismiss (sulfentrazone).
This pesticide factsheet covers the use and characteristics of the herbicide Oxadiazon (oxadiazon).
This pesticide factsheet covers the use and characteristics of Reward (diquat dibromide).
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.
This pesticide factsheet covers the use and characteristics of Snapshot TG (isoxaben +trifluralin).
This pesticide factsheet covers the use and characteristics of Basagran T/O (bentazon).
This pesticide factsheet covers the use and characteristics of Tower (dimethenamid-p).
This pesticide factsheet covers the use and characteristics of the preemergent herbicide Princep, Simazine (simazine).
This pesticide factsheet covers the use and characteristics of StriCore (pethoxamid).
This pesticide factsheet covers the use and characteristics of Goal and GoalTender (oxyfluorfen).
This pesticide factsheet covers the use and characteristics of Ornamental Herbicide II (oxyfluorfen + pendimethalin).
This pesticide factsheet covers the use and characteristics of Pendulum, Aquacap, Corral (pendimethalin).
This pesticide factsheet covers the use and characteristics of Envoy Plus (clethodim).
This publication discusses best practices for managing and controlling weeds in container nurseries and greenhouses, focusing on woody plant propagation and containerized liner production.
Immediately after a flood, most farmers, nursery crops producers and grounds maintenance staff have much more urgent matters to worry about than weeds. But, eventually the questions arise: Has my preemergence herbicide washed away? How do I know? Should I re-treat? What’s going to happen now? Unfortunately there is no way to provide definitive answers to these questions. But this publication offers some tips and suggestions that will help you plan a response.
This publication is a compilation of ideas from a few specialists based on research, reports in the landscape, experience, and intuition on how to manage storm and disaster damage in landscapes and nurseries.
This pesticide factsheet covers the use and characteristics of Gallery (isoxaben).
This pesticide factsheet covers the use and characteristics of Pennant Magnum (S-metolachlor).
This pesticide factsheet covers the use and characteristics of Broadstar (flumioxazin).
This pesticide factsheet covers the use and characteristics of Finale XL or Cheetah Pro (glufosinate).
This pesticide factsheet covers the use and characteristics of the herbicide Fortress (isoxaben + dithiopyr).
This pesticide factsheet covers the use and characteristics of Regal O-O (oxyfluorfen + oxadiazon).
This pesticide factsheet covers the use and characteristics of Biathlon (oxyfluorfen + prodiamine).
In container nurseries -- frequent hand weeding reduces cumulative weeding costs by an average of ~ 36% compared to weeding only before herbicide reapplications. Based on research conducted at North Carolina State University.
This pesticide factsheet covers the use and characteristics of Fuerte (fumioxazin + prodiamine).
Research has shown that up to 75% of the preemergence herbicides broadcast-applied to container nursery crops falls to the ground between the pots. As the size of the crop increases, the space between pots increases - -resulting in greater and greater percentages of the applied herbicide falling between pots. This factsheet covers how to apply preemergence herbicides to individual pots uniformly and accurately.
Sanitation is an under-utilized component of container nursery weed management. Nursery sanitation is a commitment to weed prevention and management throughout the nursery and throughout the production cycle. This publication describes strategies to prevent weeds from spreading into and within container nurseries.
This table presents information on postemergence herbicides registered for use on woody ornamentals.
Various mulches, including fabric or organic disks, plastic pot-toppers, and organic mulches, have been investigated for weed control in containers. Advantages, disadvantages, and cost estimates, of using mulches in container nursery crops are presented.
