The winter weather is starting to weigh upon me. In fact, Punxsutawney Phil saw his shadow earlier this month which tells us that we are in for six more weeks of winter.
Parrotia persica, also known as Persian ironwood, is native to a relatively small region of northern Iran and Azerbaijan, near the southern edge of the Caspian Sea.
Calibrachoa is closely related to the petunia and was first introduced to Europe in the early 19th century about the same time as the petunia.
Carpetweed (Mollugo verticillata) is a low-growing, multi-shoot annual that grows into a circular mat.
People want to know how pesticide use could affect them. Residents who live near your fields, people who buy your produce, employees of your farm, members of your family and even you may be interested in information about the potential health effects of the pesticides you use. If you give people off-the-cuff answers that are meant to be reassuring, but not based on science, you may prompt them to be less careful than they should be. Conversely, some responses may prompt people to act out of fear instead of truly understanding risks.
Juniperus chinensis can grow to 50 feet in height with a 15 foot spread, acting like a tree. This makes it a bit too large for many of our urban landscapes where clientele are looking for somewhat smaller plants to add color and structure to the winter garden.
Now is the perfect time to go out and scout your Viburnums for this pest.
On a list of evildoers, the woolly adelgid doesn't have quite the same ring to it as, say, Count Dracula or the Green Goblin. But make no mistake, to Pennsylvania's endangered state tree, the eastern hemlock, the woolly adelgid might as well be named Doctor Doom.
Tobacco Mosaic Virus (TMV) was detected in many PA greenhouses and high tunnels in 2014. TMV is a very stable virus and is capable of being transmitted to susceptible plants on worker’s hands, clothing, or tools.
Every bit of color that we can add to Pennsylvania’s winter landscape is welcome relief from the long, gray days. While evergreen conifers enliven to the winter landscape, it adds even more interest to use conifers of a different color, at least sparingly.
Not all weeds get a “cool” common name, but yellow rocket (Barbarea vulgaris) is one of them.
As you spend winter plowing streets, salting sidewalks or just enjoying the wintery weather, have you noticed some trees hang on to their leaves after all the other have colored up and fallen to the ground?
This winter the Penn State Extension Green Industry Team will be offering the Green Industry Winter Updates Series.
Poinsettia plants have been grown and used as a holiday decoration for a considerable period of time.
V. nudum ‘Winterthur’ is well adapted to most of the mid-Atlantic region and southern US, and performs well in a variety of conditions.
Last winter was a cold one throughout Pennsylvania. Countless poorly planted, stressed or marginally hardy (Leyland cypress I am looking at you!) trees and shrubs experienced severe winter injury.
Lacebark pine, Pinus bungeana, is native to eastern and central China. It is commonly grown on the grounds of Buddhist temples. This attractive conifer has stiff, bright green needles in bundles of three.
Prostrate knotweed (Polygonum aviculare) is a summer annual.
Harrisburg – Agricultural businesses and pesticide applicators in 18 counties can dispose of unwanted pesticides safely and easily in 2015 through the Pennsylvania Department of Agriculture’s CHEMSWEEP program.
Poison-ivy (Toxicodendron radicans) is a native woody, perennial vine. Though it doesn’t pose the problem in terms of nutrient and water competition that a majority of other common weed species do, it has its own significant pest quality.