New russet for the northern states.
Developed by the University of Maine, Caribou Russet has the best classic baked potato flavor we’ve found. Also excellent for mashing. Moderate yields of very attractive, oval to oblong, russeted tubers that store well. Variety was bred for and performs best in cool climates, so should only be grown in the northern tier (New England and states that border Canada). Resistant to golden nematode race Ro1; moderately resistant to common scab and Verticillium wilt.
SCIENTIFIC NAME: Solanum tuberosum
CULTURE: Potatoes grow best in well-drained, fertile soil with a pH of 6.0-7.0. Cut tubers into pieces roughly 1 1/2-2 oz. (1-1 1/4" diameter) each, with at least one "eye" per piece. Small tubers may be planted whole. Potatoes can be planted in early to mid-spring as they tolerate cool soil and moderate frost. Plant seed pieces 2-3" deep, 12" apart, in rows 30-36" apart. Plants will emerge 2-3 weeks later. When the plants are 6-8" tall, hill them by mounding soil from each side of the row about 4" high along the base of the plants to protect developing tubers from greening. Repeat hilling process as plants grow until hills are about 12" high.
DISEASES: The best disease control is fertile soil, crop rotation, and consistent moisture.
INSECT PESTS: Row covers work well to exclude insect pests such as Colorado potato beetles, aphids, and leafhoppers. Otherwise, scout for yellow-orange potato beetle eggs on undersides of leaves and crush them; manually remove and dispose of larvae and adults. Potato beetles can also be controlled with a spinosad insecticide.
HARVEST: Small, "new" potatoes can be harvested beginning about 7-8 weeks after planting. Main crop tubers are harvested in fall. After foliage has died back, leave tubers in the ground for 2 weeks to set skin. Dig tubers, brush off soil, and allow skins to dry before storing. Store in a cool but not freezing (40°F/4.4°C) dark, humid place.
AVG. PLANTING RATE: 10 lb./80-100′ at 12" spacing; 110 lb./1,000′; 1,600 lb./acre in rows 36" apart.
SEED SPECS: Avg. 8-10 pieces/lb.; fingerling type: avg. 20 pieces/lb.