Powdery Scab

What is powdery scab?  Powdery scab is a potentially serious disease of potatoes that occurs worldwide in regions where potatoes are grown, including Wisconsin.  Although powdery scab primarily causes cosmetic, if unsightly, skin blemishes of potato tubers, the pathogen that causes the disease can transmit another, more serious potato pathogen, Potato mop-top virus (PMTV).  PMTV was first […]

Tizón Tardío (Late Blight)

El tizón tardío es una enfermedad destructiva de los tomates y de las papas que puede matar a las plantas maduras y causar que los frutos del tomate y los tubérculos de la papa no sean comestibles. Esta enfermedad también afecta, aunque típicamente en menor grado, a las berengenas y a los pimientos así como a malezas relacionadas como la hierba mora.

Strategies for Identifying and Managing Plant Diseases

By: Amanda Gevens, Professor and Integrated Extension Specialist Plants can be affected by fungus, bacteria, viruses and other factors. In this video, you will learn how to look for symptoms of plant disease, cultural methods to reduce disease pressure, and other management practices. Plant disease is an abnormal response in plant health to a pathogen, […]

Japanese Beetle

The Japanese beetle, Popillia japonica, is a significant pest of landscape trees and shrubs, vegetable and fruit crops, and turfgrass. This factsheet describes the lifecycle of this beetle along with management and control options.

Brown Marmorated Stink Bug

Brown marmorated stink bug is a non-native pest that feeds on awide range of plants. This insect is also a nusiance when it overwinters indoors. Learn about identification and management in this factsheet.

Gray Mold (Botrytis Blight)

Gray mold (or Botrytis blight) is a common and often serious fungal disease that can affect plants of all kinds. Learn more in this factsheet.

Aphids

Aphids are soft-bodied, insects that feed on plant sap and subsequently excrete a sugary substance that can attract ants as well as support a saprophytic fungus called sooty mold. Learn about aphids found in home gardens in this factsheet.

Herbicide Damage

Herbicide damage is any adverse, undesired effect on a plant that is caused by exposure of that plant to a pesticide designed for weed control. Learn symptoms and more in this factsheet.

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