Choristoneura rosaceana
| Obliquebanded Leafroller | |
|---|---|
| Type: | Insect |
| Binomial: | Choristoneura rosaceana |
| Family: | Tortridae |
| Order: | Lepidoptera |
| Metamorphosis: | Complest |
| Damaging stages: | 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.
DescriptionEdit
Leafrolling Caterpillars are green with black heads, adults are small, light brown moths.
Symptoms and SignsEdit
Rolled, tied and chewed leaves, minor feeding on fruits. Damage can be extensive on rosaceous plants.
EcologyEdit
Host plantsEdit
- 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
ControlEdit
- Cultural controls: Avoid excess nitrogen fertilisation, to avoid overy fleshy growth.
- Trapping: Pheromone traps are used for monitoring in orchards.
- Pesticides: Resistant in many areas to Organophosates
- Predators and parasites: Wasps and flies
- Biocontrols (microscopic): Bacillus thuringensis
ReferencesEdit
- Ontario Ministry of Agriculture, Food, and Rural Affairs
- W.T. Johnson & H.H. Lyon, et. al. (1978). Insects That Feed on Trees and Shrubs (Fifth Edition ed.). John Wiley & Sons, New York. pp. 216–217.