Plant Disease Diagnostic Clinic (PDDC) Update, July 21, 2017

Brian Hudelson, Sue Lueloff, John Lake and Ann Joy

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 July 8, 2017 through July 14, 2017.

PLANT/SAMPLE TYPE, DISEASE/DISORDER, PATHOGEN, COUNTY

FRUIT CROPS

Blueberry, Phomopsis Canker, Phomopsis sp., Kewaunee

Grape, Anthracnose, Phomopsis Cane and Leaf Spot, Sphaceloma ampelinum, Phomopsis viticola, Dane, Dane

SPECIALTY CROPS

Hop, Fusarium Canker, Fusarium sp., Racine

VEGETABLE CROPS

Asparagus, Root/Crown/Stem Root, Fusarium oxysporum, Vernon

Bean (Lima), Alternaria Leaf Spot, Alternaria sp., Columbia

Cabbage, Bacterial Leaf Spot, Pseudomonas syringae pv. maculicola, Waupaca

Cucumber, Angular Leaf Spot, Pseudomonas syringae pv. lachrymans, Waushara

Potato, Black Leg, Dickeya dianthicola, Portage

Squash, Anthracnose, Colletotrichum orbiculare, Sauk

Tomato, Septoria Leaf SpotSeptoria lycopersici, Columbia, Dane, Green Lake, Sauk


For additional information on plant diseases and their control, visit the PDDC website at pddc.wisc.edu. Follow the clinic on Facebook and Twitter @UWPDDC.