Ice and persistent snow cover will be the primary reasons for winterkill in the Northeast.
This winter's low temperatures and high energy prices have greenhouse operators across the state looking for ways to manage heating and power costs. Penn State Agricultural Engineer Dan Ciolkosz addressed this topic at a recent Extension greenhouse meeting held at Gumto Greenhouses near Butler, PA. According to Ciolkosz, the key to energy conservation is in eliminating unnecessary waste by using high efficiency equipment, turning things off when not in use, and re-using energy when practical.
You’ve observed dieback in the crowns of a several recently planted green ash trees on a property that you’re responsible for in your work area. Some of the trees have declined in recent years, and your clients want you to diagnose the problem and save their ash trees from any further decline.
You know the situation…you and your crew spent days cleaning, pruning and moving perennial and nursery stock into your overwintering houses. After a few weeks you walk through and notice some of the pots have half the media volume they had when you moved them!
Each year in February, horticultural professional growers, educators, and hobbyists are putting the finishing touches on their projects for the grand and delightful Philadelphia Flower Show.
One major service that the Master Gardeners provide is plant problem diagnostics. This can be done over the phone or in person at an Extension office, although bringing a sample into the office expedites the diagnostic process.
The Northeastern IPM Center fosters the development and adoption of integrated pest management, a science-based approach to dealing with pests—one that provides economic, environmental, and human health benefits. They have created a unique annual report for 2013.
The IPM Practitioner’s 2013 Directory of Least-Toxic Pest Control Products is now available online.
While the gray dogwood has many attributes, it would never be planted alone as a specimen in the landscape.
Needled evergreens have been described as the “backbones of the landscape,” the unchanging canvas designers use as a foil for flowering trees and shrubs, herbaceous ornamentals, and even turfgrass areas.
Henbit (Lamium amplexicaule) is a common winter annual. Like many of our common weed species, it grows in many areas – lawns, landscape plantings, nursery containers, unmanaged sites.
My neighbor came up to me last month and told me he was sorry that my tree had died. I was puzzled, because I was not aware that any of my trees had died.
Fuchsias are typically sold in hanging baskets, but are also produced as standards. Plants are considered to be upright or trailing in habit. Usually the trailing cultivars are placed in baskets.
In early January, Penn State Extension conducted a “Green Industry” conference at Delaware Valley College.
Understanding the life cycles of plant pathogens is a critical part of integrated pest management in landscapes and ornamentals. Sometimes it is difficult to really picture what is happening when a pathogen infects a plant.
After 20 plus years, most growers, applicators, and licensed pesticide companies are aware of the CHEMSWEEP Program, managed by the Pennsylvania Department of Agriculture’s Plant Industry Bureau.
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The eastern half of the Unites States is just emerging from some of the nastiest cold weather we have had in decades and the green industry might see some plant death or at least severe dieback in certain shrubs.
This winter the Penn State Extension Green Industry Team will be offering a series of educational sessions called the Green Industry Winter Updates.
As the year draws to a close, it is natural to reflect upon the past, near past or long past, and that would pertain to our horticultural field as well. Did you know when the first greenhouses were erected in the USA, and what they were used for?