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Spotted lanternfly on apple in Berks County, PA in October 2017. Photo: Erica Smyers, Penn State
Spotted Lanternfly on Grapes and Tree Fruit - Articles Articles

Spotted Lanternfly on Grapes and Tree Fruit

Julie Urban, Dave Biddinger, Ph.D., Ed Rajotte, Ph.D.

Biology, management and slowing the spread of the spotted lanternfly on grapes and tree fruit in the Mid-Atlantic Region. More
Jim Baker, North Carolina State University, Bugwood.org
Identifying Common Household Insects in Pennsylvania - Articles Articles
Proper pest identification is the first step in making an integrated pest management (IPM) decision. More
Brown marmorated stink bug
Brown Marmorated Stink Bug - Articles Articles

Brown Marmorated Stink Bug

Michael J. Skvarla

The brown marmorated stink bug (BMSB) was first collected in September of 1998 in Allentown, but probably arrived several years earlier. More
Questions and Answers about Flies and Ants
Questions and Answers about Flies and Ants - Articles Articles
Q&A: Basics about flies and ants. More
Introduction to Weeds: What are Weeds and Why do we Care?
Introduction to Weeds: What are Weeds and Why do we Care? - Articles Articles
No matter what definition is used, weeds are plants whose undesirable qualities outweigh their good points. More
Alton N. Sparks, Jr., University of Georgia, Bugwood.org
Integrated Pest Management (IPM) Tactics - Articles Articles
The goal of using multiple tactics or "many small hammers" is to effectively suppress pests below injurious levels and avoiding outbreaks. More
Introduction to Weeds and Herbicides
Introduction to Weeds and Herbicides - Articles Articles
Weeds are plants whose undesirable qualities outweigh their good points. More
Tree Diseases that Create Hazards
Tree Diseases that Create Hazards - Articles Articles

Tree Diseases that Create Hazards

Gary W. Moorman, Ph.D.

Certain diseases of trees weaken their structure and create a hazardous situation where serious damage could result from falling limbs or the toppling of the entire tree. More
Landscaping and Gardening Around Walnuts and Other Juglone Producing Plants
Landscaping and Gardening Around Walnuts and Other Juglone Producing Plants - Articles Articles
Walnuts and hickories produce the chemical juglone (5 hydroxy-1,4- napthoquinone), which is exuded from all parts of the plant. More
Pest Management Methods
Pest Management Methods - Articles Articles

Pest Management Methods

Emelie Swackhamer, J. Robert Nuss, Larry Kuhns, Gregory Hoover

IPM (integrated pest management) primarily consists of methods used to prevent plant problems from occurring in the first place. More
Tobacco Mosaic Virus (TMV)
Tobacco Mosaic Virus (TMV) - Articles Articles

Tobacco Mosaic Virus (TMV)

Gary W. Moorman, Ph.D.

Tobacco mosaic virus (TMV) is named for one of the first plants in which it was found in the 1800s. However, it can infect well over 350 different species of plants. More
Spotted lanternfly adults on Ailanthus. Photo: Emelie Swackhamer
What To Do If You Find Spotted Lanternfly - Articles Articles
The spotted lanternfly is an invasive insect that was first found in Pennsylvania in 2014. More
Hemlock Woolly Adelgid (HWA)
Hemlock Woolly Adelgid (HWA) - Articles Articles
Hemlock woolly adelgid is a destructive, introduced pest of forest and ornamental hemlock trees. More
Paul Bachi, University of Kentucky Research and Education Center, Bugwood.org
Fungal Root Rots And Chemical Fungicide Use - Articles Articles
Root rots of floricultural and woody ornamental crops are one of the most important causes of crop loss. More
Tree of heaven leaves. Credit: Bigstock
Tree-of-Heaven - Articles Articles

Tree-of-Heaven

David R. Jackson

Tree-of-heaven (Ailanthus altissima) also known as ailanthus, Chinese sumac, and stinking sumac is a rapidly growing, deciduous tree native to a region extending from China south to Australia. More
Preventing, Diagnosing, and Correcting Common Houseplant Problems
Preventing, Diagnosing, and Correcting Common Houseplant Problems - Articles Articles
Properly selecting houseplants for purchase at a garden center or other retailer is essential if you want to take home a good, healthy plant and avoid potential problems. More
Clemson University - USDA Cooperative Extension Slide Series, Bugwood.org
Botrytis or Gray Mold - Articles Articles

Botrytis or Gray Mold

Gary W. Moorman, Ph.D.

Botrytis is a pathogenic fungus found virtually everywhere plants are grown. More
Weed Management in Organic Cropping Systems
Weed Management in Organic Cropping Systems - Articles Articles
When managing weeds in organic systems, producers use many of the same techniques used in conventional systems, but they rely much more on nonchemical control strategies. More
Persistence of Herbicides in Soil
Persistence of Herbicides in Soil - Articles Articles

Persistence of Herbicides in Soil

William S. Curran, Ph.D.

While it is desirable for the chemicals to control weeds during the season of application, it is not desirable for them to persist and affect subsequent crop growth. More