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| | Essay3 |
 | | The winter moth has caused defoliation and distorted growth on Sitka spruce recently, this is a new food plant, and as it is grown commercially and planted densely in single species stands there is great potential for population explosions and extensive damage. |
 | | The winter moth is a very successful insect that, in the past, caused damage to oaks mainly, but with the recent expansion in host ranges to include Calluna and Sitka, both more or less monocultures in their areas the winter moth has the potential to do great commercial damage, especially in a country like Scotland. |
 | | Watt, A. and McFarlane, A. Winter moth on Sitka spruce: synchrony of egg hatch and budburst, and its effect on larval survival. |
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