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Greenhouse Weed Control

By: Joe Neal Horticulture Information Leaflet

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.

Princep, Simazine (simazine)

By: Joe Neal Pesticide Fact Sheets

This pesticide factsheet covers the use and characteristics of Princep, Simazine (simazine).

HGH 75 (oxyfluorfen + trifluralin)

By: Joe Neal Pesticide Fact Sheets

This pesticide factsheet covers the use and characteristics of HGH 75 (oxyfluorfen + trifluralin).

Regal O-O (oxyfluorfen + oxadiazon)

By: Joe Neal Pesticide Fact Sheets

This pesticide factsheet covers the use and characteristics of Regal O-O (oxyfluorfen + oxadiazon).

Dimension (dithiopyr)

By: Joe Neal Pesticide Fact Sheets

This pesticide factsheet covers the use and characteristics of Dimension (dithiopyr).

Pennant Magnum (S-metolachlor)

By: Joe Neal Pesticide Fact Sheets

This pesticide factsheet covers the use and characteristics of Pennant Magnum (S-metolachlor).

Tower (dimethenamid-p)

By: Joe Neal Pesticide Fact Sheets

This pesticide factsheet covers the use and characteristics of Tower (dimethenamid-p).

Broadstar (flumioxazin)

By: Joe Neal Pesticide Fact Sheets

This pesticide factsheet covers the use and characteristics of Broadstar (flumioxazin).

Pendulum, Aquacap, Corral (pendimethalin)

By: Joe Neal Pesticide Fact Sheets

This pesticide factsheet covers the use and characteristics of Pendulum, Aquacap, Corral (pendimethalin).

Gallery (isoxaben)

By: Joe Neal Pesticide Fact Sheets

This pesticide factsheet covers the use and characteristics of Gallery (isoxaben).

Casoron (dichlobenil)

By: Joe Neal Pesticide Fact Sheets

This pesticide factsheet covers the use and characteristics of Casoron (dichlobenil).

Ornamental Herbicide II (oxyfluorfen + pendimethalin)

By: Joe Neal Pesticide Fact Sheets

This pesticide factsheet covers the use and characteristics of Ornamental Herbicide II (oxyfluorfen + pendimethalin).

Barricade, Prodiamine, Regalkade G (prodiamine)

By: Joe Neal Pesticide Fact Sheets

This pesticide factsheet covers the use and characteristics of the preemergence herbicide: Barricade, Prodiamine or Regalkade G (prodiamine).

Grafting and Budding Nursery Crop Plants

By: Ted Bilderback, R. E. Bir, T. G. Ranney

This publication provides information on budding and grafting techniques, which can be used successfully in commercial operations.

Marengo (indaziflam)

By: Joe Neal Pesticide Fact Sheets

This pesticide factsheet covers the use and characteristics of Marengo (indaziflam).

Managing Drought on Nursery Crops

By: Anthony LeBude, Ted Bilderback

Drought has always caused nursery crop producers great concern. If irrigation water becomes limiting, growers producing nursery crops in containers may lose their entire crop. Newly planted field-grown crops also sustain heavy losses if they are not irrigated frequently during the first year of production. Although established field-grown nursery stock will survive if not irrigated during periods of drought, they will not grow under these conditions. Adequate moisture during field production will produce field-grown shade trees of marketable size in three to five years. Poorly irrigated plants will take longer to reach marketable size, thus lengthening the time cost of production.

Using The PourThru Procedure For Checking EC and pH For Nursery Crops

By: Ted Bilderback Horticulture Information Leaflet

Every nursery needs to have someone who routinely checks Electrical Conductivity (EC) also called soluble salts, and pH of container crops, potting inventories and irrigation water. Checking EC and pH should be considered part of the quality control and scouting program in the nursery. Results from testing 3 to 5 containers in a irrigation zone each week can be used to schedule irrigation the following week. Comparing leachate solution collected from containers to water collected from irrigation nozzles provides a good insight into nutrient levels in the containers. Checking EC and pH of nursery crops grown in containers doesn't have to be time consuming, complicated or difficult. The intention of this article is to review the procedure and update growers on the Virginia Tech Extraction Method (VTEM), also called the PourThru extraction procedure.

Water Considerations for Container Production of Plants

By: Ted Bilderback, Douglas Bailey, Dick Bir Horticulture Information Leaflet

Water quality and quantity issues are extremely important in container production of plants. This article addresses both quality and quantity issues for greenhouse and nursery production from a best management practices view.

Weed Management in Conifer Seedbeds and Transplant Beds

By: Joe Neal

Weeds compete with conifer seedlings for light, water, nutrients and space. Of these, light competition is probably the most detrimental to conifer seedlings. Shading will reduce growth, and generally weaken seedlings making them more susceptible to insects, mites and diseases. Weed competition has also been known to reduce winter hardiness. Consequently, an intensive weed control program is required to produce quality seedlings and transplants.

Submission Procedures for Root Medium, Water, Fertilizer Solution, and Plant Tissue Samples

By: Brian Whipker Horticulture Information Leaflet

This publication offers a selected list of labs specializing in testing and analyzing samples of greenhouse root substrate, irrigation water, fertilizer solution and plant tissue. Providing the proper nutrition program for your plants is important for controlling growth.

Alkalinity Control for Irrigation Water Used in Nurseries and Greenhouses

By: Douglas Bailey, Ted Bilderback Horticulture Information Leaflet

High pH water and high alkalinity in water can be limiting factors in container production of greenhouse and nursery crops. An understanding of both is needed to accurately treat water with a high pH.

Commercial Boxwood Production

By: Ted Bilderback, James Baker, Richard Jones, R.E. Bir Horticulture Information Leaflet

Boxwood, thought to have been introduced to the United States in 1652, has long been associated with colonial architecture across North Carolina. It's suitability for formal and informal landscape use as edging, hedge, screen, accent and specimen plants makes boxwood a favorite of homeowners, landscape contractors and nurserymen.

Low Investment Propagation / Winter Protection Structure

By: Ted Bilderback, Kim Powell Horticulture Information Leaflet

This factsheet covers the basics of constructing a propagation / winter protection structure in a quonset design.

A Simple Intermittent Mist System For Propagation

By: Ted Bilderback, Kim Powell, R.E. Bir Horticulture Information Leaflet

Sophisticated propagation structures are not always required to successfully root ornamental plants. Summer propagation of many woody ornamentals can be accomplished by rooting softwood or semi-hardwood shoots in inexpensive frames equipped with an intermittent mist system. During high summer temperatures, leafy soft shoots root more readily if structures are equipped with mist.

Pruning Field Grown Shade and Flowering Trees

By: Ted Bilderback, Kim Powell, R.E. Bir Horticulture Information Leaflet

Every nurseryman should know how to prune trees and the reason for the various pruning practices. Many landscape problems can be avoided if correct pruning is performed, while the tree is growing in the nursery. Incorrect pruning practices or lack of pruning diminish the quality of the plant material.