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Posted 19 February 2007. PMN Crop News.

Agdia Announces Easy-to-Use, On-Site ImmunoStrip for Rapid Detection of All Strains of Potato Virus Y (PVY)


Elkhart, Indiana (February 13, 2007)– Agdia, Inc. has released to the potato industry a PVY ImmunoStrip® that allows for rapid and universal detection of all strains of potato virus Y, including yet unclassified isolates of the virus such as the NTN isolates.

Agdia designed the ImmunoStrip test for on-site determination of suspect PVY infected plants, but it can also be used in laboratory settings. Ease of use is one of the key attributes of the ImmunoStrip – the test is so simple that even those with no prior testing experience can perform it, with no laboratory training required.

The PVY ImmunoStrip is recommended wherever a test for PVY is needed for testing non-symptomatic leaf tissue as well as confirming presence of PVY in symptomatic leaf tissue. Agdia test data from Europe, South America, and North America has shown that the PVY ImmunoStrip is sensitive and accurate. In these comparative trials, the ImmunoStrip showed 98 to 100 percent agreement with ELISA results for detection of all naturally infected leaf samples.


ImmunoStrips offer the laboratory technology of ELISA, but in an easy-to-use format that works in the field. The testing process involves simply grinding the suspect plant sample in the special bag that contains the extraction buffer (included with the kit) and inserting the ImmunoStrip into the bag. Results can be seen in 10-15 minutes.

“Agdia was the first to develop this type of ImmunoStrip technique for several plant viruses, and we’re excited about the positive impact the PVY ImmunoStrip test will have in advancing the early and rapid detection of the virus in the worldwide agricultural community,” said Dr. Luis Salazar, Agdia’s Scientific Director.

“Potato virus Y is now the most common potato virus in nearly all regions of the world. Because almost all cultivars planted are susceptible to the virus, it creates a huge economic impact on crops worldwide,” said Salazar. “PVY is one of the most variable viruses in plants and it can reduce crop yield by 40 to 70 percent, depending on the strain, variety, and climate conditions. Symptoms in the foliage can range from no apparent infection to severe mosaic (mottling, distortion, curling, rugosity, or spotting) and general necrosis (death) of leaves. Some strains, such as the ones that cause PTNRD (potato tuber necrotic ringspot disease), reduce the marketable value of tubers.”

PVY ImmunoStrip is appropriate for quick diagnostic assays and confirmation of PVY infections in potato leaves when time is a limiting factor in decision-making. It is also a valuable teaching and research tool.

For more information about the PVY ImmunoStrip and other Agdia products and services, please call 574-264-2014, or visit the Agdia website at

ABOUT AGDIA, INC.-Agdia, Inc., is located in Elkhart, Ind., USA. Since 1981, Agdia has been developing and providing products and services to detect pathogens in plants. The company markets its products in over 120 countries and offers tests for over 200 pathogens, including viruses, bacteria, viroids, phytoplasmas, and fungi that infect plants. Agdia also operates a Testing Services Department that analyzes plant samples from around the world.

Sarah Hindman
Sales and Marketing Manager