Mum Growers, Beware of Pythium
July is the month when mum producers start seeing wilting plants due to Pythium root rot, with more cases …
Posts Written By
NC State Extension, NC State University
Downy Mildew on Coreopsis and Related Plants
The downy mildew pathogen Plasmopara halstedii was found causing leaf spotting and leaf death on a sample of coreopsis …
Powdery Mildew on Calibrachoa (Million Bells)
A calibrachoa (million bells) with dried, brown lower leaves was submitted this week to the NCSU Plant Disease and …
Dickeya Dianthicola in the Production of Herbaceous Ornamentals
During March 2017 the NCSU Plant Disease and Insect Clinic confirmed the presence of the bacterium Dickeya dianthicola on …
Black Root Rot on Pericallis
Last week the NCSU Plant Disease and Insect Clinic received three greenhouse samples of Pericallis x hybrida (florist’s cinerea) infected …
Boxwood Blight on Holiday Greenery
The public should be aware of the possibility of introducing boxwood blight into home landscapes not only on infected …
Hosta Virus X: Multiple Detections in NC
After a long winter’s nap, Hosta virus X (HVX) has emerged again. We usually see only one or two …
Boxwood Blight Update
Several recent boxwood blight confirmations by the NCSU Plant Disease and Insect Clinic highlight the continuing problem this disease …
Bacterial Blight Confirmed on Geranium
Bacterial blight, caused by Xanthomonas hortorum pv. pelargonii, was confirmed on a geranium sample from a North Carolina greenhouse …
Rose Woes
This week the Plant Disease and Insect Clinic at NCSU received a container rose with both downy mildew Botrytis …