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Distribution and Biology of the Golden Nematode, Heterodera Rostochiensis in Newfoundland1)

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For more content, see Nematology.

The golden nematode, Heterodera rostochiensis, was first discovered in Newfoundland in August, 1962. Surveys conducted from 1962 to 1964 showed that this pest was widely distributed in eastern and southern Newfoundland but it was not found in the north or in Labrador. Only three communities were contaminated in the western area of the Province. Infestations were generally confined to small gardens in seventy-eight communities, and very few commercial farms were affected. From 50 to 58 days are required for the golden nematode to complete its life-cycle under Newfoundland soil and climatic conditions. There is only one generation per year. The potato varieties Arran Victory and Urgenta were found to be very tolerant to high nematode populations at Cupids, Newfoundland. In one infested area, seven successive crops of Urgenta potatoes were produced without a single crop failure.

Affiliations: 1: Research Station, St. John's West, Newfoundland, Canada


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