Tag Archives: plant disease

New Online Citrus Disease Identification Tool

The U.S.D.A.’s Center for Plant Health Science and Technology has added a new online tool to aid in the identification of 24 diseases and common disorders of citrus. This new site contains an interactive key for identification based on symptoms as well … Continue reading

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Disease Du Jour (April 20, 2011)

I’ve heard that azalea leaf gall is quite prevalent in the Feliciana parishes this spring.  Some people considered these galls to be unsightly, but I guess that a matter of personal perception.  The fungus that causes them,  Exobasidium vaccinii, only invades the young expanding leaves during … Continue reading

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White Leaf Spot of Mustard Greens

While out in Livingston Parish with Kenny Sharpe earlier in the week, we visited a commercial grower having a problem with mustard greens. My first thought was downy mildew, but it turned out to be white leaf spot, caused by … Continue reading

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A new resource on turfgrass fungicides

New from APS Press!  A Practical Guide to Turfgrass Fungicides by Dr. Richard Latin of Purdue University. The regular price for this is $139.95, but it is currently on sale for $109.95. This book contains a wealth of information on all aspects of … Continue reading

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New Louisiana Plant Pathology Fact Sheets

Just out, five new fact sheets in the Louisiana Plant Pathology series.     These can be viewed at http://www.lsuagcenter.com/en/communications/publications/whats_new/. To see previous fact sheets, please go to http://tinyurl.com/3yu6g8r  

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Sweet Orange Scab (Update Oct. 11)

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

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Sweet Orange Scab in Louisiana – Update (August 30)

Sweet orange scab has now been confirmed in a citrus grove in Calcasieu Parish.

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