Pest, Disease and Weed Identification
Plant Health Diagnosis: Assessing Plant Diseases, Pests and Problems
Learn a process for diagnosing plant health problems, including signs and symptoms of diseases, pests and insects, and environment or management issues.
IPM in Mushroom Production: Exclusion Techniques for Pest Control
Exclusion prevents the entrance of pest organisms into new rooms and their escape from older ones. The latter should not be underestimated.
Weed Ecology, Biology, and Identification
Understanding weed ecology can help in designing management systems to minimize their impact.
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Featured Articles:
Articles Tree-of-Heaven
David R. Jackson, Art Gover
Articles Spotted Lanternfly on Grapes and Tree Fruit
Julie Urban, Dave Biddinger, Ph.D., Ed Rajotte, Ph.D.
Articles Brown Marmorated Stink Bug
Michael J. Skvarla
Articles Preventing, Diagnosing, and Correcting Common Houseplant Problems
Kathy Kelley, Ph.D.
Articles Tobacco Mosaic Virus (TMV)
Gary W. Moorman, Ph.D.
Articles Tree Diseases that Create Hazards
Gary W. Moorman, Ph.D.
Articles Botrytis or Gray Mold
Gary W. Moorman, Ph.D.
Articles Pest Management Methods
Emelie Swackhamer, J. Robert Nuss, Larry Kuhns, Gregory Hoover
Articles Fungal Root Rots And Chemical Fungicide Use
Gary W. Moorman, Ph.D.
Articles Introduction to Weeds and Herbicides
Dwight Lingenfelter
Articles Weed Management in Organic Cropping Systems
William S. Curran, Ph.D.
Articles Persistence of Herbicides in Soil
William S. Curran, Ph.D.
Common Problems:
Workshops 
Guides and Publications Wood-destroying Pests
Steve Jacobs
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Articles West Nile Encephalitis: What You Need to Know
Sharon I Gripp, Steve Jacobs, Winand Hock, Ph.D.
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