Donald M. Ferrin, Ph.D., Louisiana State University Agricultural Center, Baton Rouge, LA
Downy mildew was observed on Impatiens walleriana in a residential landscape in New Orleans today. The affected plants had been purchased at a “big box” store in the area, but it was not the same chain as the store in the … Continue reading
We had our first confirmed report of downy mildew on Impatiens walleriana here is south Louisiana this weekend. My wife commented that one of the double impatiens that she’d gotten at one of the big box stores a couple of weeks … Continue reading
Here’s the latest on attempts to deal with citrus greening (huanglongbing) in Florida from TheLedger.com at http://www.theledger.com/article/20120410/NEWS/120419953?Title=Scientist-Remedy-for-Citrus-Greening-Disease-Fails-to-Improve-Productivity). The most troubling bit of news in the article is that University of Florida plant pathologist Jim Graham “cited research by U.S. Sugar, also … Continue reading
The Texas Department of Agriculture and USDA APHIS announced this week that huanglongbing (citrus greening) has been confirmed in a citrus grove in Hidalgo County, Texas. A portion of that county has been placed under an emergency quarantine order and … Continue reading
Sweet orange scab has now been confirmed on citrus (leaves and fruit) from 15 parishes across southern Louisiana and four counties in Texas including two in the Rio Grande Valley, the main citrus producing area of Texas. The widespread occurrence of the … Continue reading
Sweet orange scab has now been confirmed in a citrus grove in Calcasieu Parish.