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Trends of eye spotted bud moth lepidoptera olethreutidae populations over 12 years on 2 cultivars in an insecticide free orchard


Canadian Entomologist 110(1): 91-100
Trends of eye spotted bud moth lepidoptera olethreutidae populations over 12 years on 2 cultivars in an insecticide free orchard
The populations of Spilonota ocellana (D. and S.) on 2 cultivars in an insecticide free apple orchard showed nearly identical trends over a 12 yr period. Egg populations reached maximum numbers when the orchard was 9 yr old and the ensuing larvae infested 33% of the clusters the following yr. A marked decline in all stages occurred when the orchard was 11-12 yr old and this was immediately followed by a 2nd peak of less intensity on both cultivars. The only difference in mortality of the population on the 2 cultivars was found in neonate larvae. The average survival of egg to pupa for the 12 yr period was near 7%.


Accession: 006839584



Related references

Trends of eye-spotted bud moth (Lepidoptera: Olethreutidae) populations over 12 years on two cultivars in an insecticide free orchard. Canadian Entomologist 110(1): 91-100, 1978

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