Lettuce drop

By Mike Matheron, UA Extension Plant Pathologist

A presentation was made on the biology and management of Sclerotinia drop of lettuce at the Preseason Vegetable Workshop held in Yuma, Ariz. on Aug. 31, 2010.

Topics covered included: a comparison of differences and similarities in disease development caused by Sclerotinia minor and S. sclerotiorum; temperature and moisture requirements for airborne spore production by S. sclerotiorum; and cultural, biological, and chemical disease management tools. 

To review the related PowerPoint presentation, click on this link:

http://cals.arizona.edu/crops/vegetables/advisories/docs/Matheron_Preseason_veg_workshopAug2010.pdf.

Contact Matheron: (928) 726-6856 or matheron@ag.arizona.edu.