IVY AND TREES.
Ivy has long been considered harmful to the trees to which it clings, but m high official of the British Forestry Commission declares that only very rarely is ivy harmful to trees. The one danger arising from its presence is that, when it has scaled the trunk and reached the crown, it may bush luxuriously forth, suppress the leaves, and so reduce the activity of growth of the tree. Otherwise, this authority considers that ivy is quite an honest creeper, legitimately rooted in the soil, and not a parasite upon the tree. As to the supposed strangling effect of ivy, the forestry expert admits that there may possibly be some restriction in the flow of sap in the tree, but if this happens it is so slow in effect as to have escaped official observation. One of the Forestry Commission’s expert’s cut ivy 105 years old from an oak which was in the perfection of vigour, and there is ivy at Montpellier 450 years old which has done no harm to anything.
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https://paperspast.natlib.govt.nz/newspapers/TS19291012.2.157.3
Bibliographic details
Star (Christchurch), Issue 18889, 12 October 1929, Page 19 (Supplement)
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175IVY AND TREES. Star (Christchurch), Issue 18889, 12 October 1929, Page 19 (Supplement)
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