e-GRO recently released a series of videos on managing insect and mite pests in the greenhouse, presented by Raymond Cloyd of Kansas State University. Dr. Cloyd describes the basic steps of scouting, diagnosis, and the proper use of biological control agents.
Spider mites are usually associated with hot weather, and we in the northeast have had precious little warmth and sunshine of late.
Wet springs are very conducive to the spread of this pathogen and Colorado Spruce trees that are grown in crowded settings with poor air circulation are often predisposed to infection.
Penn State Extension is recruiting property owners to trap and destroy the spotted lanternfly in the quarantined areas of Berks, Bucks, Chester and Montgomery Counties. To participate, volunteers must own property with the preferred host Ailanthus altissima (tree of heaven) trees.
Horticulture Educator Emelie Swackhamer is now based out of the Montgomery County Extension office. She will be working as part of the statewide green industry team, emphasizing integrated pest management and storm water management programming.
Smooth groundcherry (Physalis longifolia var. subglabrata) is a perennial plant.
Insects, diseases and weeds aren't the only pests we encounter in greenhouses. Sometimes the damage we see to seeds, seedling and overwintering stock plants is caused by four-footed furry pests - rodents! This article discusses the two most common rodent pests of greenhouses, mice and voles, and how to control them.
This new bulletin (E3314) was published in April by the Michigan State University Extension. This easy-to-read bulletin contains research-based, practical information that can be useful to create and maintain pollinator friendly landscapes.
If you are a certified pesticide applicator you are hopefully familiar with the PA Plants website. This site is where certified applicators can update their profiles, check the credits they have received and need before license expiration, find out what fees are due and check records of payment.
Looking to add some diversity and oomph to your pollinator garden? Or maybe create a landscape that you can also eat? Check out the Oregon grapeholly. While perennial and annual flowers get most of the glory and attention, there are not a lot of options in shrub material that are an early season food source.
Now that spring weather, with unusually high temperatures, came early to many parts of the Northeast and most woody trees and shrubs have broken bud and flowered almost a month early, we have suddenly dipped back into winter with below freezing temperatures.
Summer is a few months away, but it isn’t too early to start thinking about one of our most common landscape pests, and that is the two-spotted spider mite (Tetranychus urticae).
Pineappleweed can be either a summer or winter annual.
The invasive spotted lanternfly has been found in four southeastern counties in Pennsylvania. We are trying to eradicate this potential pest. There is a quarantine order in place that prohibits movement of any living life stage of this insect to areas outside of the quarantine area.
Oak trees are susceptible to a life-threatening fungal disease called oak wilt. The most important step you can take to protect them is to avoid pruning them when they are actively growing. While the standard wisdom is to prune oaks only from November through mid-April in our area, this spring is warming up rapidly. It may be prudent to stop pruning oaks earlier than you normally would.
In Pennsylvania, spring seems to come just a little later than we all want it to, and usually not before the weather roller-coasters us from the low 20s to the high 70s and back, tossing in snow, sleet, rain and sunshine, sometimes all in the same day. Looking forward to spring’s arrival, Western Pennsylvania greenhouse growers gather in early March each year for Penn State Extension’s Nearly Spring Greenhouse Night-Lighter.
It is early March and we are starting to see flower buds swelling on red maples, serviceberry and several other woody plants...
Taxodium distichum, or baldcypress, is a deciduous conifer native to the saturated and seasonally flooded soils of the Southeastern and Gulf Coastal Plains.
I have over 30 years experience in greenhouse production, and have used this wonderful manual for over twenty years. It has been a good friend in solving and managing the issues that I, and other greenhouse growers have faced.
Leaf spotting fungi comprise a wide range of plant disease pathogens that do injury to many host plants.