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Horticulture/Choristoneura rosaceana
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Obliquebanded Leafroller Insect Choristoneura rosaceana Tortridae Lepidoptera Complest Larval
The Obliquebanded Leafroller is a pest of orchard crops and many ornamentals. It is native to North America, but has been accidentally introduced into other parts of the world.
Description
../Leafrolling Caterpillars/ are green with black heads, adults are small, light brown moths.
Symptoms and Signs
Rolled, tied and chewed leaves, minor feeding on fruits. Damage can be extensive on rosaceous plants.
Ecology
Host plants
../Acer/
../Aesculus/
../Betula/
../Cirsium/
../Crataegus/
../Corylus/
../Cornus/
../Cotoneaster/
../Dianthus/ (Carnation)
../Fragaria/ (Strawberry)
../Fraxinus/
../Lonicera/
../Malus/
../Picea/
../Pinus/
../Platanus/
../Populus/
../Prunus/
../Pyracantha/
../Quercus/
../Rhododendron/ (Rhododendron, Azalea)
../Rosa/
../Rubus/
../Salix/
../Sorbus/
../Spirea/
../Syringa/ (Lilac)
../Tilia/
../Tsuga/
../Vaccinium/
../Verbena/
../Viburnum/
Control
Avoid excess nitrogen fertilisation, to avoid overy fleshy growth. Pheromone traps are used for monitoring in orchards. Resistant in many areas to ../Organophosates/ Wasps and flies ../Bacillus thuringensis/
References
Ontario Ministry of Agriculture, Food, and Rural Affairs
W.T. Johnson & H.H. Lyon, et. al. Insects That Feed on Trees and Shrubs Fifth Edition 1978 John Wiley & Sons, New York 216–217