Choristoneura rosaceana
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.
Description
editLeafrolling Caterpillars are green with black heads, adults are small, light brown moths.
Symptoms and Signs
editRolled, tied and chewed leaves, minor feeding on fruits. Damage can be extensive on rosaceous plants.
Ecology
editHost plants
edit- 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
edit- 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
References
edit- 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.
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