Brian Hudelson, Ann Joy, Erin DeWinter and Joyce Wu, Plant Disease Diagnostics Clinic
The PDDC receives samples of many plant and soil samples from around the state. The following diseases/disorders have been identified at the PDDC from August 3, 2013 through August 9, 2013.
Plant/Sample Type, Disease/Disorder, Pathogen, County
FIELD CROPS,
Corn, Fusarium Stalk Rot, Fusarium oxysporum, Walworth
Corn, Gibberella Stalk Rot, Fusarium graminearum, Walworth
Corn, Purple Leaf Sheath, None, Dane
Soybean, Brown Spot, Septoria glycines, Outagamie
Soybean, Charcoal Rot, Macrophomina phaseolina, Adams
Soybean, Dicamba Injury, None, Outagamie
Soybean, Fusarium Root Rot, Fusarium sp., Adams
Soybean, Soybean Cyst, Heterodera glycines, Outagamie
FRUIT CROPS,
Blueberry, Phomopsis Canker, Phomopsis sp., Brown
Blueberry, Red Ring Spot, Red Ringspot Virus, Brown
Chokeberry, Cercospora Leaf Spot, Cercospora sp., Dane
Chokeberry, Phomopsis Canker, Phomopsis sp., Dane
Chokeberry, Rhizoctonia Stem Blight, Rhizoctonia sp., Dane
Grape, Growth Regulator Herbicide Injury, None, Dane
Grape, Oxidant Stipple, None, Dane
Grape, Brown Rot, Monilinia fructicola, Dane
Grape, Plum Pockets, Taphrina communis, Dane
Raspberry, Root/Crown Rot, Phytophthora sp., Pythium sp., Rhizoctonia sp., Columbia
VEGETABLES,
Potato , Late Blight, Phytophthora infestans, Adams, Brown
Squash, Root Rot, Rhizoctonia solani, Dane
Tomato, Late Blight, Phytophthora infestans, Brown, Racine
Tomato, Unidentified Viral Disease, Not identified, Polk
Tomato, Walnut Toxicity, None, Wood
SOIL,
Soybean Soil, Soybean Cyst Nematode, Heterodera glycines, Rock
For additional information on plant diseases and their control, visit the PDDC website at pddc.wisc.edu.