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Horse owners should manage catsear presence in pastures and limit their horses' contact with the plant.

Explore new plant varieties for fall sales through a guided tour of trial displays featuring annuals and perennials, seasonal merchandising ideas, and inspiration for fall offerings.

Informational table showing disease name, symptoms, pathogen/cause, and management of Gloxinia diseases.

Informational table showing disease name, symptoms, pathogen/cause, and management of Gladiolus diseases.

Informational table showing disease name, symptoms, pathogen/cause, and management of Gerbera diseases.

Informational table showing disease name, symptoms, pathogen/cause, and management of Gaillardia diseases.

Informational table showing disease name, symptoms, pathogen/cause, and management of azalea and rhododendron diseases.

Learn to manage landscape plant and turfgrass pests with expert instruction, pest identification, and horticultural best practices at this all-day workshop.

Penn State Extension Master Watershed Stewards to Host Seventh Annual Native Tree and Shrub Events to Promote Healthy Watersheds. Now Open!

Soil testing is a soil-management tool used to determine the fertility of soil as well as the optimum lime and fertilizer requirements for crops.

Many things make plants unwell and pests and diseases are only two causes of poor plant growth.

Nematodes undoubtedly are the most numerous multicellular animals in the world. You can pick up a handful of soil almost anywhere and extract nematodes from it.

The euonymus scale is a key pest of euonymus, pachysandra, and bittersweet. This armored scale insect is native to Japan and China.

The European pine sawfly is common in Pennsylvania. The larval stage feeds on the needles of pine trees in landscapes, nurseries, and Christmas tree plantations.

The fall webworm is a widely distributed native pest that appears from late summer through early fall. It feeds on many species of deciduous trees and shrubs.

The European pine shoot moth is a key pest of ornamental pine plantings, pines in production nurseries, and Christmas trees in Pennsylvania.

The black vine weevil is a serious pest in nurseries and established landscape plantings.

The boxelder bug frequently becomes a nuisance pest around homes and buildings near plantings of the boxelder, Acer negundo.

The boxwood leafminer is a serious pest of Pennsylvania plantings of boxwood, Buxus spp.

The boxwood psyllid is a common pest of boxwood, Buxus spp. It is not considered as destructive as other boxwood pests.

Many species of aphids or plant lice occur on ornamental trees and shrubs in Pennsylvania.

The magnolia scale is one of the largest scale insects in the United States. It feeds only on magnolia.

The Japanese maple scale is a recently detected pest of a wide range of woody host plants in Pennsylvania.

The pine needle scale is a key native pest of pine, Douglas-fir, spruce, and cedar in landscapes, nurseries, and Christmas tree plantations in Pennsylvania.

The potato leafhopper has been noted on more than 200 host plants, many of which are ornamental plants. However, this insect is best known as a field crop pest.