Coffee Shop Blog
Regulated Deficit Irrigation – Part I
Deficit irrigation refers to the practice of applying less than the full amount of water a vineyard can use. The objective of deficit irrigation is to induce and sustain moderate water stress that arrests shoot growth and limits fruit growth without impacting foliage...
In the Vineyard with Paul Verdegaal: A Dry Year and Pest Update
The official end of the rainfall year shows a total of 10.2 inches of rain for 2013-14 - the driest season in the last 12 years and only slightly ahead of the 1976-77 drought. Fortunately, the last significant rain occurred with perfect timing and in a heavy event...
The Value of Powdery Mildew Resistance in Grapes: Evidence from California
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...
Global Wine Market Update from the Ciatti Company
Updated reports are coming in on harvests around the world. The government projections in Argentina have changed dramatically over the past month. Earlier crop reports had projected a 30% decline in volume, but new reports now estimate only a 6% decline from the...
Spider Mite Control in California Vineyards with Conventional and OMRI-approved Acaricides
Spider mites are found in vineyards throughout most grape growing areas of the world. In California, the primary spider mite pests are the Pacific spider mite, Tetranychus pacificus, and the Willamette spider mite, Eoteranychus willamettei (Karban and Zalom, 1998)....
Lodi Acreage and Potential 2014 Crop Size
Here at Allied Grape Growers AGG, we recently combed through the 2013 Grape Acreage Report published by the California Ag Statistics Service. As we have done over the years, we analyzed every corner of the report, identifying missing acres and creating a better...
Remote Sensing for Vineyard Pest Management
Remote sensing is a valuable tool for vineyard managers to assess several aspects of their viticultural operations, including pest management programs. Remote sensing refers to the use of aircraft or satellites to provide pictures or digital images of vineyards....
Quick and Easy Pesticide Use Reporting
In 1990 California became the first state to require full reporting of agricultural pesticide use. Under the full use reporting regulations growers are required to report monthly the pesticides they use to the agricultural commissioner of the county in which the pest...
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