Pests and Diseases

Recommendations for managing pests and diseases, including webworms, beetles, weevils, mites, slugs, spotted lanternflies, leafminers, spiders and aphids. Tips on scale, root rot, viruses and integrated pest management.

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Pennsylvania Department of Agriculture,
Spotted Lanternfly Seminar - Workshops Workshops

Spotted Lanternfly Seminar


McConnellsburg, PA

Learn more about this invasive pest. More
Perdue Announces Emergency Funding for Spotted Lanternflly in Pennsylvania
Perdue Announces Emergency Funding for Spotted Lanternflly in Pennsylvania - News News
U.S. Secretary of Agriculture Sonny Perdue today announced $17.5 million in emergency funding to stop the spread of the spotted lanternfly in southeastern Pennsylvania. More
Purple Loosestrife – A Noxious Weed
Purple Loosestrife – A Noxious Weed - Articles Articles
Recently, some folks pulled into the local nursery, asking about the pretty pink flowering plants that were blooming along the fields and roadsides. More
Whitney Cranshaw, Colorado State University,
Fletcher Scale - Articles Articles
The Fletcher scale, sometimes referred to as the arborvitae soft scale, is a common pest of arborvitae and yew. It can also attack juniper, cypress, and hemlock. More
Plant Health Diagnosis: Assessing Plant Diseases, Pests and Problems
Plant Health Diagnosis: Assessing Plant Diseases, Pests and Problems - Online Courses Online Courses
Learn a process for diagnosing plant health problems, including signs and symptoms of diseases, pests and insects, and environment or management issues. More
Source: B. Martin. USDA-ARS Horticulture Crops Research Unit
Tomato Ringspot Virus of Brambles - Articles Articles
In the Mid-Atlantic region Tomato Ringspot Virus is vectored by dagger nematodes (Xiphinema spp.) and possibly pollen. More
Russ Ottens, University of Georgia,
Tarnished Plant Bug and Other True Bugs on Strawberries - Articles Articles
This inconspicuous sucking plant bug is a general feeder attacking a great variety of cultivated and wild plants. More
Natalie Hummel, Louisiana State University AgCenter,
Strawberry Sap Beetle - Articles Articles
The strawberry sap beetle is small, oval, and less than 1/8 inch long. More
University of Georgia Plant Pathology, University of Georgia,
Strawberry Bud Weevil or Strawberry Clipper - Articles Articles
The strawberry bud weevil, Anthonomus signatus (Say), is one of the state's most destructive strawberry pests. More
Spider Mites on Strawberries
Spider Mites on Strawberries - Articles Articles
The spider mites, Tetranychus spp., especially the twospotted spider mite, frequently attack strawberry plants. More
Slugs on Strawberries
Slugs on Strawberries - Articles Articles
Although slugs are not insects, they can cause considerable damage that is not unlike insect damage. More
Frost damage on ash
Will My Woody Plants Recover from Freeze Damage - Articles Articles
When we have unusually high temperatures in early spring, many woody trees and shrubs will break bud and leaf out or flower early. More
Edward L. Barnard, Florida Department of Agriculture and Consumer Services,
Phytophthora Root Rot in Raspberries in the Home Garden - Articles Articles
Phytophthora root rot is now regarded as a major cause of declining red raspberry plantings. More
Gyorgy Csoka, Hungary Forest Research Institute,
Euonymus Scale - Articles Articles
The euonymus scale is a key pest of euonymus, pachysandra, and bittersweet. This armored scale insect is native to Japan and China. More
Damage to a row of boxwoods from boxwood leafminer. Photo: T. Butzler, Penn State
The Boxwood Leafminer Makes Its Yearly Entrance in Spring - Articles Articles
Boxwoods have many positive qualities that make it one of the most popular shrubs in the landscape. More
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