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Grapevine Leafroll Associated Virus-3

As the world's most economically destructive grapevine virus, GLRaV-3 (leafroll 3 virus, vectored by the vine mealybugs) threatens the viability of the wine grape farming industry worldwide. GLRaV-3 infection can reduce yield and quality, decrease a vineyard's lifespan, and make land less suitable for future plantings.

Canine Detection of GLRaV-3

Recent research demonstrates the canines could differentiate between a grapevine with GLRaV-3 from one without with 93.4% accuracy (sensitivity).   Accuracy determining which grapevines do not have the virus was 99.6% (specificity).  This proof-of-concept research was done with the Lodi Winegrape Commission. All trials were randomized and double-blind.

What The Research Suggests

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Scent detection dogs, if appropriately trained, can detect relatively small amounts of fecal contamination in produce samples, while generating relatively few false positive alerts.

PARTYKA, M.L., BOND, R.F., FARRAR, J., FALCO, A., CASSENS, B., CRUSE, A, AND ATWILL, E.R., (2014). Quantifying the Sensitivity of Scent Detection Dogs To Identify Fecal Contamination on Raw Produce. Journal of Food Protection, Vol. 77, No. 1, 2014, Pages 6–14. 

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Canine Detection of Vine Mealybug

Recent research demonstrates the canines could differentiate between a grapevine with Vine Mealybug (VMB) from one without with 97.3% accuracy (sensitivity).   Accuracy determining which grapevines do not have the virus was 99.6% (specificity).  Detection services are available.  Contact us for a quote.

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