Variety Characteristics:
Developed by Caithness Potato Breeders, Argos is a vigorous main crop variety with very high yield potential.  It produces numerous round oval, uniform, bright white fleshed tubers suited to table consumption.

Argos has some unique disease resistance characteristics: Field immunity topotato wart. The variety is resistant golden nematode Ro1 and moderately resistant to pale cyst nematodes Pa2/3, tuber late blight, common scab, Black leg and PVX. Argos is susceptible to PVY and leaf roll and requires a standard management program for late blight.

Argos is widely adapted and demonstrates high tolerance to heat stress making this variety suitable for temperate and tropical environments.


Seed Preparation:
Cold seed should be warmed to 10-15°C (50-60°F) to minimize bruising during handling.  Pre-warming may be necessary depending on the planting date, however Argos does not have a deep dormancy. Argos can successfully be pre-cut. Optimum cut seed sizes are 50-gram (1.5 oz) or larger. 


Argos responds best when soil temperatures are at or above 7°C (45°F). Seed  piece depth should be 5-8 cm (2-3") under most conditions in well drained soils. Plant spacing of 25 cm (10") for cut seed and 30 cm (12") for whole seed.


Argos requires a lower to moderate nitrogen fertilization.  A knowledge of field nitrogen will be helpful in determining levels of nitrogen to apply. Base Phosphorous and Potassium application levels on soil analysis data.  Herbicides containing metribuzin can be used; always follow label recommendations for soil type and conditions. Argos gives good results on well drained soils. It will emerge quickly and develop a good ground covering foliage.


Harvest and Storage:
The variety has a determinate growth habit and has not demonstrated problems with vine destruction when grown with appropriate Nitrogen applications. Argos is not susceptible to internal bruising or to mechanical damage. It will store if properly handled, cured and ventilated. Apply a treatment of the fungicide thiabendazole to control fusarium and silver scurf.  Avoid free moisture in storage and keep potatoes at a consistent temperature. Optimum results occur if table potatoes are shipped within 3-4 months of harvest.


The above information is based on production experience in Atlantic Canada.  It is believed to be accurate, but performance may vary under different management or climatic conditions.

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