January 31, 2014
Controlling Foliar Diseases With Microbial Fungicides
Microbial fungicides' active ingredients are biological organisms, in this case, different types of bacteria that utilize various modes of action to prevent and control foliar plant diseases.
November 19, 2013
4 Keys To Biocontrol Success
Biocontrol use in greenhouse pest control is increasing as more growers understand the differences from traditional chemicals and unique requirements for the best results. Here are four keys to keep in mind when implementing a biocontrol program in your greenhouse.
November 15, 2013
The Centennial Edition Crop Protection Handbook Is A Reliable Reference
The 2014 Edition of the MeisterPro Crop Protection Handbook is the largest and most comprehensive in its long history of providing comparisons of products and cross-referencing brand names to active ingredients.
October 7, 2013
Impatiens Downy Mildew Research Needs Your Input [Survey]
Researchers at Cornell Cooperative Extension, Cornell University and Michigan State University are conducting a survey that seeks to determine the impacts of impatiens downy mildew on the greenhouse industry.
August 19, 2013
Diseases Of Begonia
With impatiens issues being seen both in the greenhouse and the landscape, many growers and gardeners have turned to other shade-loving annuals, like begonias. In this episode of FloriCAST, hear from Margery Daughtrey of Cornell on the diseases to watch out for on begonias.
August 16, 2013
Impatiens Downy Mildew: 2013 And Beyond
Between warnings from garden writers and the national media and extensive signage at garden centers and retail outlets, the public was well aware of a problem with Impatiens walleriana this year. “Some people reported they couldn’t sell the Impatiens walleriana they grew because the press had been so alarming to gardeners that they weren’t purchasing them,” says Cornell’s Margery Daughtrey. Growers were also aware of possible problems with impatiens downy mildew and made adjustments to their production. From what Daughtrey observed in the market, the amount growers cut back on producing Impatiens walleriana varied quite a bit in 2013. Some box stores asked growers to produce them, and that was probably the main channel for their distribution this year, she says. Other growers cut back by 40 to 100 percent. “If they did not cut back extensively, some of them were left with plants that just didn’t sell,” she says. […]
July 30, 2013
Understand Downy And Powdery Mildews With New Research Reports
The American Floral Endowment (AFE) has released two new research reports to help the industry better respond to downy mildew and powdery mildew: • Understanding Coleus Downy Mildew: Special Research Report #134• Understanding Gerbera Powdery Mildew: Special Research Report #135 In Report 134, Blair Harlan and Mary Hausbeck from Michigan State University examine downy mildew on coleus. The researchers have proposed an integrated pest management program to help growers produce high-quality coleus crops untouched by downy mildew. The gerbera daisy industry in the U.S. is booming but powdery mildew on gerberas threatens profits. In Report 135, Michigan State University’s Leah Granke and Mary Hausbeck examine the effects of environmental factors that could provide a framework for an integrated pest management technique to reduce the number of fungicides necessary to produce a healthy, profitable gerbera crop. AFE offers this research and more than 150 other free research reports online. AFE is […]
July 13, 2013
Impatiens Downy Mildew Incidence Down Significantly In 2013
With more than half of the country impacted by impatiens downy mildew in 2012, it’s a bit of a relief to hear that – so far – confirmed reports of the disease appear to be much lower in 2013. According to a presentation by Ball Horticultural Company’s Colleen Warfield and Cornell’s Margery Daughtrey at OFA Short Course, only Florida, Louisiana, Texas, California and most recently Missouri and Kentucky have confirmed reports in both greenhouses and in the landscape. A number of other states have reported the disease in greenhouses, but in most cases, it doesn’t seem to have made its way out into the landscape there. It’s unclear why the disease hasn’t developed as widely this year, but increased awareness among growers, retailers and consumers may have helped blunt the spread of the disease. One new wrinkle has been the discovery of infection in a species other than Impatiens walleriana: […]