August 24, 2012
Impatiens Are Not Down And Out
Impatiens — it’s not only a plant genus; these days, it’s a state of mind. With confirmed reports of Impatiens Downy Mildew in more than 20 states as of July 31 and disease pressure in 2013 expected to be worse, the industry is beginning to understand just how serious this issue could be for producers who grow one of the most popular bedding plants in America. “Impatiens avoidance behavior will largely be seen for the first time in 2013,” says Cornell University Plant Pathologist Margery Daughtrey. “More outbreaks are occurring all the time that will continue to affect customer demand next spring. The amount of inoculum available in the trade and in the garden beds will interact with the spring weather patterns to determine what will happen next year — and those are all unknowns.” But it’s not all bad news. Growers who preventatively treated for Impatiens Downy Mildew and […]
July 25, 2012
Nutritional Problems In Pansy: Part II
What nutritional disorders cause necrosis, multi-colored leaves, interveinal chlorosis, yellowing and bleaching in upper leaves or over the whole plant in pansies? Listen to this episode of FloriCAST from Brian Whipker for possible causes to these problems.
July 11, 2012
Lower Leaf Problems In Pansy: Diagnosing Nutritional Disorders
What could be causing purpling, yellowing or necrosis in the lower leaves of pansies? Listen to this episode of FloriCAST from Brian Whipker for possible nutrient deficiencies that may be causing these problems.
April 3, 2012
Diagnosing EC and pH Nutritional Disorders In Petunia
What are your most common concerns with petunia nutrition? Brian Whipker bets it’s pH or EC. In this episode of FloriCAST, Whipker shares advice on corrective procedures for hitting target ranges of pH and EC.
March 20, 2012
Upper Leaf And Entire Plant Problems: Diagnosing Petunia Nutritional Disorders
When petunia stretches, isn’t very full or is chlorotic or deformed, you definitely want to look out for nutritional deficiencies. Take a look at some examples in this episode of FloriCAST from Brian Whipker.
February 28, 2012
Lower Leaf Problems: Diagnosing Petunia Nutritional Disorders
Some nutritional disorders in petunias manifest themselves in problems with lower leaves. Take a look and listen to what you can do to diagnose them in this episode of FloriCAST from Brian Whipker.
November 21, 2011
Media Mix Case Studies: Test Your Problem Solving Skills
See if you can solve the mysteries in these two case studies: an inconsistent calibrachoa crop and poinsettias that drop their lower leaves.
November 21, 2011
Identifying Nutrient Deficiencies Made Easy Part II
Is that purpling on your petunias a phosphorous deficiency or something else? You can tell a lot about a deficiency depending on where the symptoms occur on the plant. Take a look at the symptoms of deficiencies of mobile (nitrogen, phosphorous, potassium and magnesium) and partially mobile (sulfur and molybdenum) elements.