News and Announcements!

Rick Dunst, Viticulturist, Double A Vineyards, Inc.

Double A Vineyards offers a full line of crop protection products available to our customers. There are several grape diseases that can cause crop loss directly, through infection of fruit, or indirectly, through loss of leaf area. Various insects feed on grape flowers, fruit, leaves, and roots, resulting in decreased productivity. Weeds can compete with grapevines for water and nutrients resulting in reduced vine capacity. While the use of cultural methods of pest control are encouraged, responsible use of pesticides is often necessary to produce full yields of high quality fruit. This article will discuss how the crop protection products we offer can be integrated into a pest management program for grapes, and offers sample disease management programs for three grape cultivars with varying levels of disease susceptibility.

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Managing grape diseases from bloom through harvest
Rick Dunst, Viticulturist, Double A vineyards, Inc.

Part I provided an introduction to the major diseases that affect grapes and some options for early season disease control in vineyards. Please refer to that article for links to fact sheets for five major grape diseases – anthracnose, phomopsis, black rot, downy mildew, and powdery mildew.

This article will focus on disease management considerations from bloom until harvest. Once again, I will rely on some of the excellent information developed for commercial grape growers through the Land Grant University system in the United States, including: Read More »

Grapevine diseases and early-season considerations (Updated March 2014)
Rick Dunst, Viticulturist, Double A Vineyards, Inc.

Managing disease is a key component to successful grape production. Cultural practices and variety selection can have a large impact on disease pressure and susceptibility, but most grape growers rely, to some extent, on chemical fungicide applications in order to produce disease-free fruit and foliage for the production of high quality fruit and wine. This article will introduce the major diseases that affect grapes, with an emphasis on cultural practices that can reduce disease inoculum in vineyards. I’ll also discuss early-season disease management from dormancy until early bloom. “Part 2” will focus on grapevine disease control from bloom through harvest. Read More »

Shipping Update


We have concluded shipping bare-root plants for this year.  
We are now accepting online orders to be shipped the Spring of 2015!! 
(Books, Accessories, Chemicals, and Chemical Application Accessories will be sent out on a year round basis). 


Warranty/Return Policy:

Warranty:Warranty applicable only to rooted vines and plants. We are not liable for crop loss or damage from causes beyond our control. We will gladly replace any stock which proves to be untrue to variety or fails to grow the year that it is planted. We are not responsible for losses sustained over the winter. Under no circumstances is our liability greater than the cost of the stock purchased. It is mutually agreed that this is the total extent of our liability involving any matter concerning our product. All claims must be submitted by August, 15th of the year the product is delivered. For losses in excess of 10% we require notice within 30 days of planting so we can verify practices. Only applicable to vines planted by June 1st.


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