by Lodi Growers | Dec 28, 2018 | Blog
DECEMBER 28, 2018. BY WALT MAHAFFEE & THE FRAME NETWORKS GROUP. Another grape season has come to an end, and preparation for the next begins. As part of that preparation, people are curious about our fungicide resistance monitoring work and how different regions...
by Guest Contributor | Mar 22, 2018 | Blog, Vineyards
Many felt like mildew was raining down last year and nothing they did would slow it down. You might have heard of the results from our American Vineyard Foundation (AVF) funded research on DMI (FRAC 3) and strobilurin (FRAC 11) fungicide resistant powdery mildew and...
by Lodi Growers | Jul 15, 2014 | Blog, Grapes
Powdery mildew (PM) is a fungal disease that can damage many crops. On most plants, PM appears as white, powdery spots on leaves, shoots, flowers or fruit, which if untreated, can spread over large areas of the leaves and stems and cause reduced yields and lower fruit...
by Lodi Growers | Feb 10, 2014 | Blog, Uncategorized
This month I would like to share my thoughts regarding how to prevent powdery mildew disease in Chardonnay grapes. For 19 years I worked with Ruby Seedless table grapes in the Reedley area, and that experience shaped my approach to preventing powdery mildew. The Ruby...
by Lodi Growers | Jul 30, 2013
Powdery mildew disease of grapevines by W. B. Hewitt, F. L. Jensen, Hewitt_PowderyMildew_1976.pdf (0.7 MiB) - First Paragraph: Powdery mildew is one of the most important and widely distributed diseases of grapevines in California vineyards. This fungus disease occurs...
by Lodi Growers | Jul 12, 2013
Powdery mildew weapons near 1993 by T.J. Burnham, Burnham_Powdery_Mildew_1993.pdf (0.8 MiB) - First Paragraph: New registrations of fatty acid and an oil material on the horizon for California grape growers bring important additional weapons to the fight against...
by Lodi Growers | Jun 5, 2013
New research findings on the control of grapevine powdery mildew by W.D. Gulber, K. Rigert, V. Canez, Gulber_PowderyMildew_1986.pdf (0.2 MiB) - First Paragraph: Because of the apparent non-effectiveness of Bayleton to control powdery mildew on grapevine in 1985 and...
