Thursday, November 10, 2011

Pine Blister Rust Outbreak - Waterford, 1924


This image shows a sample of publicity used at a field demonstration held in this area in August, 1924. This chart represents an actual count of trees infected with blister rust on the quarter acre plot. Sign reads: What is blister rust doing to the pine on this 1/4 acre and shows pie charts of healthy and infected trees.

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