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Picture library: 1793

ELATOBIUM ABIETINUM . Damage to 6 year old Sitka spruce totally defoliated by green spruce aphid . Nearby trees are also barely affected . This tree is in a moderately sheltered part of this experiment and on a good soil and has an adequate water supply . The attack cannot be correlated with vigour of growth or site in this experiment . Location: Skiall , Orkney , Scotland .

Reference: 1793

ELATOBIUM ABIETINUM . Damage to 6 year old Sitka spruce totally defoliated by green spruce aphid . Nearby trees are also barely affected . This tree is in a moderately sheltered part of this experiment and on a good soil and has an adequate water supply . The attack cannot be correlated with vigour of growth or site in this experiment . Location: Skiall , Orkney , Scotland .


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Credit line: Forestry Commission

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