Winter Moth (Operophtera brumata)
Defoliating moth of fruit trees and ornamentals whose larvae feed in spring.
Winter moth (Operophtera brumata) is a common defoliator of fruit trees and broadleaved ornamentals. Larvae feed on buds and young leaves in spring, causing severe defoliation and reduced fruit set. Biological control includes Bacillus thuringiensis (Bt) sprays for young larvae and entomopathogenic nematodes for pupae in soil, together with tree banding and encouragement of natural enemies such as birds and parasitoids.
Biological Controls for Winter Moth (Operophtera brumata)
The options below are examples of beneficial insects and biological products commonly used against winter moth (operophtera brumata). Always refer to supplier guidance and product labels for crop safety and local registration status.
Trichogramma spp.
Product: Tricholine (field use)
Environment: outdoor
Temperature Range: 10.0 – 25.0°C
Rate: Apply as per label in orchards and amenity trees
Frequency: Multiple applications through egg-laying period
Egg parasitoids and conservation of natural enemies help suppress winter moth as part of IPM.
Related Biological Solutions
Growers dealing with winter moth (operophtera brumata) often also monitor these pests as part of a complete IPM programme: