Dagger Nematodes Root Knot Nematodes Citrus Nematodes Lesion Nematodes Ring Nematodes Stubby Root Nematodes Management More info
Stephen Jordan, University of Wisconsin-Madison
Nematodes are wormlike non-segmented invertebrate animals found in marine, freshwater, and terrestrial habitats. Plant-parasitic nematodes …
Symptoms Cause Management More Info
Jay W. Pscheidt, Oregon State University
Young vine decline develops slowly in the first few seasons of vineyard establishment and production. Young vines generally appear normal at planting, but differences in vigor become marked: …
Overview Science of Bleeding Management More Information
Eric Stafne, Mississippi State University
Removal of water from the soil by epidermal cells of roots and movement into xylem under pressure will produce a phenomenon known as “bleeding”. …
Estimating Potential Crop Load 2012 Update More information
G. Stanley Howell, VESTA Viticulture Coordinator, Professor and Viticulturist Emeritus, Michigan State University
This information is based on known relative productivity of Concord and Niagara primary and secondary buds and was written …
Assessing Injury Management Cold Hardiness Monitoring Programs More Info
Mark Chien, Penn State University and Michelle Moyer, Washington State University
There are many limiting factors to grape production, but one of the most challenging is that of winter cold damage. …
Symptoms Causes More information
Fritz Westover, Texas AgriLife Extension
Interveinal stipple on upper leaf side of a mature Lomanto grape leaf. Leaf underside of Lomanto grape shows necrotic spots, but not stipple. Photos by Fritz Westover, Texas AgriLife Extension.
What is poor fruit set? Causes Documenting poor fruit set More Info
Patty Skinkis, Oregon State University
An individual grape inflorescence (flower cluster) contains hundreds of flowers. However, not all of those flowers will set fruit and develop into …
Symptoms Causes More information
Stephen Jordan, University of Wisconsin-Madison
Bunch stem necrosis (BSN), also known as “waterberry,” can occur around bloom (when it is called early bunch stem necrosis), …
Effects of Frost Reducing the Risk Pruning Effects Modifying Temperatures More Info
Ed Hellman, Texas AgriLife Extension
This article answers the following questions:
Symptoms Causes Effects Prevention More information
Mercy Olmstead, University of Florida and Joan Davenport, Washington State University
Once thought to be due to potassium deficiency, …
