Now showing items 1-6 of 6
Reproduction of a root-knot nematode population on flue-cured tobacco homozygous for Rk1 and/or Rk2 resistance genes and the effect of soil temperature on resistance gene efficacy
(Virginia Tech, 2015-09-01)
Utilizing resistant cultivars is a main control strategy for root-knot nematodes in flue-cured tobacco (Nicotiana tabacum L.). Most commercial cultivars possess the Rk1 gene, providing resistance to races 1 and 3 of ...
Grapevine Viruses and Associated Vectors in Virginia: Survey, Vector Management, and Development of Efficient Grapevine Virus Testing Methods
(Virginia Tech, 2016-07-07)
In order to aid the booming wine industry in the state of Virginia, U.S.A., we developed a series of studies to provide a deeper understanding of the viruses and vectors for management of virus diseases and development of ...
Documentation of grapevine leafroll-associated viruses in wine grape varieties and native grape species in Virginia, and examination of the movement of grapevine leafroll disease to develop management strategies.
(Virginia Tech, 2012-12-21)
Grapevine leafroll-associated virus-2 (GLRaV-2), GLRaV-3, and grapevine fleck virus (GFkV) are widespread in grapes around the world. These viruses can cause significant crop loss and affect wine quality by reducing sugar ...
Investigation of Wine Grape Cultivar and Cluster Developmental Stage Susceptibility to Grape Ripe Rot Caused by Two Fungal Species Complexes, Colletotrichum gloeosporioides, and C. acutatum, and the Evaluation of Potential Controls
(Virginia Tech, 2016-04-15)
Ripe rot of grape is caused by two fungal species complexes: <i>Colletotrichum gloeosporioides</i> and <i>C. acutatum</i>, both of which cause disease on a variety of crops, such as strawberry and apple. To investigate ...
Characterization of Fungicide Resistance in Venturia inaequalis Populations in Virginia
(Virginia Tech, 2012-03-28)
Apple scab (causal organism: Venturia inaequalis) is an economically devastating disease of apples that is predominantly controlled with fungicides. Of the chemical classes currently available, the sterol-inhibiting (SI) ...
Investigation of Biotic and Abiotic Factors Affecting Double-Cropped Corn (Zea mays L.) Production in Virginia
(Virginia Tech, 2004-04-30)
Double-cropping of corn (Zea mays L.) for grain following the harvest of a small grain crop has been under evaluation in Virginia as an alternative cropping strategy (Brann and Pitman, 1997). To assess the potential ...