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Watering the young tree in late June might be desirable, depending on the rainfall up to that time.

This schedule will not provide desirable control of brown rot unless there is Captan in the GPProduct mix.

Informational table showing apple varieties that are non-resistant to apple scab but recommended for home planting in Pennsylvania.

Supplement for green industry professionals and natural resource managers on the spotted lanternfly and effective management strategies.

Learn the basics of tree and shrub identification through observation of live plants, visual aids, and identification keys in this engaging Franklin County workshop.

Participants in this one-day pesticide update receive research-based information and recertification credits in hard-to-find categories.

Next growing season, why not use some natural pest management? Any landscape, nursery, or greenhouse can contain a large number of beneficial insects and arachnids.

Information about locating, identifying, and treating egg masses.

Learn to identify native trees and shrubs using bark, buds, and seeds during a guided walk focused on seed collection, conservation, and community stewardship.

Spring has sprung and while the change is welcome, it is often when problems emerge that gained a foothold last year.

The birch skeletonizer, Bucculatrix canadensisella, is a native North American moth. The caterpillars skeletonize the leaves of birch trees.

The armored obscure scale is a key pest of oak in Pennsylvania, and can attack other woody host plants such as beech, dogwood, hickory, maple, and willow.

The most common host plants of Cooley spruce gall adelgid are Colorado blue spruce and Douglas-fir that are grown as landscape ornamentals and Christmas trees.

The old house borer is an injurious wood-boring insect. The larva bores through pine, spruce, and other coniferous woods, weakening structural timbers.

Learn holly propagation, selection, and landscape use, including integrating native plants and steps to become a Certified Holly Arboretum.

The fall cankerworm is a native pest of hardwood trees in North America. It causes some defoliation in the forest every year, with larger outbreaks occasionally.

The tuliptree scale is a pest of yellow poplar, or tuliptree, magnolia, and linden. This soft scale insect is so prolific that it can cover twigs and branches.

Explore underutilized trees and shrubs and learn practical strategies to enhance landscapes, support biodiversity, and promote sustainable production systems.

Several varieties of currants and gooseberries are available and described below. Only varieties of black currants with good resistance to white pink blister rust are included.

Prepare for the Pennsylvania Department of Agriculture’s certified pesticide applicator exam while learning safe, effective, and environmentally responsible pesticide use practices.

Phomopsis twig blight and canker is a very common fungal disease in plantings. In addition to causing a twig blight and cankers, the fungus also causes leaf spots and a fruit rot.

The cranberry fruitworm, Acrobasis vaccinii (Riley), is found throughout the eastern United States wherever wild blueberries grow and can damage cultivated crops.

Blueberry varieties can be selected so that you have crops to be harvested from July through mid-September, if desired.

The plum curculio is dark brown, 1/4 inch long, and has four humps on its back and a long (one-third of the body length) snout projecting forward and downward from its head.

Black root rot a "disease complex," meaning that it can be caused by various pathogens combined with environmental stresses.