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USFS Logo Research Data Archive
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Displaying items 1 - 4 of 4
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A 20 inch d.b.h. blackjack dying in the crown <b>not</b> due to rust.
more info/bigger image
Collection: RMRS Archive Images
Keywords: limb rust
forest pathology
Organisms: ponderosa pine
Location: Apache National Forest; AZ; United States
Description: A 20 inch d.b.h. blackjack dying in the crown <b>not</b> due to rust.
Date: 7/1951

An 18 inch d.b.h. blackjack dying in the lower crown <b>not</b> due to rust.
more info/bigger image
Collection: RMRS Archive Images
Keywords: limb rust
forest pathology
Organisms: ponderosa pine
Location: Apache National Forest; AZ; United States
Description: An 18 inch d.b.h. blackjack dying in the lower crown <b>not</b> due to rust.
Date: 7/1951

A 20 inch d.b.h. blackjack with 75 percent of the crown killed by Cronartium filamentosum
more info/bigger image
Collection: RMRS Archive Images
Keywords: limb rust
forest pathology
Organisms: ponderosa pine
Location: Apache National Forest; AZ; United States
Description: A 20 inch d.b.h. blackjack with 75 percent of the crown killed by Cronartium filamentosum
Date: 7/1951

A 20 inch d.b.h. blackjack with about 10 percent of the upper crown killed by Cronartium filamentosum
more info/bigger image
Collection: RMRS Archive Images
Keywords: limb rust
forest pathology
Organisms: ponderosa pine
Location: Apache National Forest; AZ; United States
Description: A 20 inch d.b.h. blackjack with about 10 percent of the upper crown killed by Cronartium filamentosum
Date: 7/1951