See All Pest, Disease and Weed Identification

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Photo: P. Landschoot, Penn State
SDHI Fungicides for Turfgrass Diseases - Articles Articles

SDHI Fungicides for Turfgrass Diseases

Peter Landschoot, Ph.D.

As summer approaches, plans are being finalized for disease prevention and control programs. More
Figure 1. Lodged corn seen from a distance.
Corn rootworms Suspected of Resistance to Bt Corn Varieties Discovered - Articles Articles
Western corn rootworms that developed resistance to some Bt corn varieties may now be a problem in PA. More
Figure 1. Drain plugs must be sealed. Photo: PA Mushroom IPM Handbook
IPM in Mushroom Production: Exclusion Techniques for Pest Control - Articles Articles

IPM in Mushroom Production: Exclusion Techniques for Pest Control

Maria Gorgo-Gourovitch, David Meigs Beyer, Ph.D., John A. Pecchia, Ph.D.

Exclusion prevents the entrance of pest organisms into new rooms and their escape from older ones. The latter should not be underestimated. More
Photo: Bruce Ackley, The Ohio State University, Bugwood.org Annual Bluegrass
Suppression of Annual Bluegrass or Crabgrass - Articles Articles

Suppression of Annual Bluegrass or Crabgrass

Tanner Delvalle, Peter Landschoot, Ph.D., Jeff Borger, M.S.

Seedbed establishment for fine turf can be extremely difficult, and is often considered an art form. More
Weed Management in Turf
Weed Management in Turf - Articles Articles

Weed Management in Turf

Peter Landschoot, Ph.D.

Weeds are undesirable because they disrupt turf uniformity and compete with desirable grass species for moisture, light, and nutrients. More
Options for Chemical Control of Moss in Putting Greens
Options for Chemical Control of Moss in Putting Greens - Articles Articles

Options for Chemical Control of Moss in Putting Greens

Peter Landschoot, Ph.D., Joshua Cook

Silvery thread moss (Bryum argenteum) in putting greens is becoming an all-too-common occurrence on Pennsylvania golf courses. More
Mourad Louadfel, Bugwood.org
Keep an Eye Out for Cereal Leaf Beetle - Articles Articles
Scout now for infestations of cereal leaf beetle in small grain fields. The larval stage feeds on the leaves and fields appear white if heavily infested. More
Assessing Soybean Fields for Insect Damage
Assessing Soybean Fields for Insect Damage - Articles Articles
This time of year (July) a suite of insect pest species are feeding upon soybean foliage. More
Alfalfa Weevil
Alfalfa Weevil - Articles Articles

Alfalfa Weevil

John Tooker, Ph.D.

Alfalfa weevil is one of the two most-damaging insect pests of alfalfa in Pennsylvania (the other is potato leafhopper). It is an exotic species that likely evolved in Asia, but appears to have been introduced to the U.S. at least three times. More