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
[edit | edit source]Leafrolling Caterpillars are green with black heads, adults are small, light brown moths.
Symptoms and Signs
[edit | edit source]Rolled, tied and chewed leaves, minor feeding on fruits. Damage can be extensive on rosaceous plants.
Ecology
[edit | edit source]Host plants
[edit | edit source]- 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 | edit source]- 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 | edit source]- 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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