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English ivy (Hedera helix) is a shade-tolerant, woody perennial vine. When established it creates a dense ground cover with attractive dark green foliage. But, left un-checked this introduced plant invades woodlands, climbs (and kills) trees and is considered an invasive species. Pursuing the internet you can find several “recommendations” for controlling English Ivy. Some good, some are questionable. This publication describes cultural and chemical control options.
Manual removal of weeds is time consuming, expensive, and often results in damage to landscape plants when intertwined roots of both the weed and the ornamental plant are pulled up. Nonselective herbicides (which must be selectively applied to avoid injury to desirable plants) are typically used for postemergence annual and perennial weed control. This publication covers choosing the right herbicide for this situation.
General guidelines on how to conduct a bioassay for herbicide residues in soil.
This pesticide factsheet covers the use and characteristics of the herbicide, glyphosate.
This pesticide factsheet covers the use and characteristics of Dimension (dithiopyr).
This pesticide factsheet covers the use and characteristics of Sureguard (flumioxazin).
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 pesticide factsheet covers the use and characteristics of Marengo (indaziflam).
This factsheet describes the symptoms of a glyphosate herbicide injury.
This pesticide factsheet covers the use and characteristics of Reward (diquat dibromide).
This pesticide factsheet covers the use and characteristics of Scythe (pelargonic acid) or Axxe (ammonium nonanoate).
When it comes to weeds, “start clean – stay clean” should be the moto of every nursery manager. This is especially true for producers of herbaceous perennials. Although we can control most grassy weeds with postemergence herbicide; otherwise, we have few herbicides to use when weeds get out of hand. Furthermore, the herbicides labeled for use in herbaceous ornamentals are either safe on many ornamentals and do not control many weeds, or control lots of weeds but are safe on only a few ornamentals. Consequently, to manage weeds effectively a comprehensive nursery weed management program including exclusion, sanitation, preemergence herbicides, some postemergence herbicides and hand weeding will be needed.
This pesticide factsheet covers the use and characteristics of Sedgehammer (halosulfuron).
This pesticide factsheet covers the use and characteristics of Basagran T/O (bentazon).
This factsheet describes the symptoms of an ALS inhibitor herbicide injury.
This factsheet describes the symptoms of a synthetic auxin (SA) herbicide injury.
This factsheet describes the symptoms of a photosystem I (PS I) inhibitor herbicide injury.
This factsheet describes the symptoms of cellulose-inhibiting herbicide injuries.
This pesticide factsheet covers the use and characteristics of StriCore (pethoxamid).
This pesticide factsheet covers the use and characteristics of Tower (dimethenamid-p).
This factsheet describes the symptoms of a carotenoid pigment inhibitor herbicide injury.
This factsheet describes the symptoms of a lipid biosynthesis (Acetyl CoA carboxylase or ACCase) inhibitor herbicide injury.
This pesticide factsheet covers the use and characteristics of Goal and GoalTender (oxyfluorfen).
This factsheet describes the symptoms of root-inhibiting herbicide injuries.
This pesticide factsheet covers the use and characteristics of Ornamental Herbicide II (oxyfluorfen + pendimethalin).
This pesticide factsheet covers the use and characteristics of Lontrel (clopyralid).
This pesticide factsheet covers the use and characteristics of Devrinol (napropamide).
This pesticide factsheet covers the use and characteristics of the preemergent herbicide Princep, Simazine (simazine).
This pesticide factsheet covers the use and characteristics of Surflan (oryzalin).
This pesticide factsheet covers the use and characteristics of Pendulum, Aquacap, Corral (pendimethalin).
This pesticide factsheet covers the use and characteristics of Gemini (isoxaben + prodiamine).
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 pesticide factsheet covers the use and characteristics of Envoy Plus (clethodim).
This pesticide factsheet covers the use and characteristics of Broadstar (flumioxazin).
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 Regal O-O (oxyfluorfen + oxadiazon).
This factsheet describes the symptoms of a shoot inhibitor herbicide injury.
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 pesticide factsheet covers the use and characteristics of Finale XL or Cheetah Pro (glufosinate).
This table presents information on preemergence herbicides for herbaceous ornamentals.
This pesticide factsheet covers the use and characteristics of Fuerte (fumioxazin + prodiamine).
This factsheet describes the symptoms of a dichlobenil herbicide injury.
This factsheet describes the symptoms of a metribuzin herbicide injury.
This factsheet describes the symptoms of natural oil and acid herbicide injuries.
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.
A table of efficacy rankings for preemergence herbicides labeled for use in nursery crops and/or ornamental landscape plantings.
This table presents information on postemergence herbicides registered for use on woody ornamentals.
This table presents information on preemergence herbicides registered for use on woody ornamentals.
