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Pine-pine gall rust, also known as western gall rust, is a fungal disease of pine trees. It is caused by Endocronartium harknessii (asexual name is Peridermium harknessii ), an autoecious , endocyclic , rust fungus that grows in the vascular cambium of the host. [ 1 ]
Pinus glabra differs markedly from most other pines in that it does not occur in largely pure pine forests, but is typically found as scattered trees in moist woodland habitats in mixed hardwood forest. To be able to compete successfully in such habitats, it has adapted to greater shade tolerance than most other pines. [3]
During the Edo period a gardener developed komomaki as a method of attracting a pest known as the "pine moth" in English. Called matsugahera in Japanese, and Dendrolimus spectabilis scientifically, the moths eat pine needles which can weaken the tree. The komomaki are placed as a warm place for the caterpillars to spend the winter, and they are ...
Cronartium ribicola is native to China, and was introduced to North America. The rust was first discovered on currants in Geneva, New York in 1906. [3] It was first seen on imported white pine seedlings from European nurseries in 1909. [3]
Missouri only has one native pine tree, the shortleaf pine. It is drought tolerant, but not fast-growing. It is naturally found in the southern one-third of the state, although numbers were ...
[3] [4] It is a slow-growing tree that can grow to heights of 15–25 metres (49–82 ft) is frost hardy down to below −26 °C (−15 °F). Its smooth, grey-green bark gradually sheds in round scales to reveal patches of pale yellow, which turn olive-brown, red and purple on exposure to light. Lacebark pine at Kew Gardens, London, England