Longevity of Codling Moth and Obliquebanded Leafroller in Apple Orchards
Author Information
Author(s): Vincent P. Jones, Nik G. Wiman
Primary Institution: Washington State University
Hypothesis
What is the longevity of adult codling moth and obliquebanded leafroller in Washington apple orchards?
Conclusion
The study found that the maximum longevity of codling moths and obliquebanded leafrollers is significantly shorter in the field compared to laboratory conditions.
Supporting Evidence
- Codling moths were dead by 130 degree-days in spring and 121 degree-days in summer.
- Female obliquebanded leafrollers lived an average of 32% longer than males.
- Maximum longevity for codling moth females was 130 degree-days or 18 days.
Takeaway
This study looked at how long two types of moths live in apple orchards, finding that they don't live as long in the wild as they do in labs.
Methodology
Moths were placed in vials within apple tree canopies, and their longevity was measured in degree-days during their flight periods.
Potential Biases
The moths were confined, which may have increased their longevity compared to natural conditions.
Limitations
The study's longevity estimates may be overestimates due to controlled conditions and lack of predation.
Participant Demographics
The study focused on adult codling moths and obliquebanded leafrollers, with both sexes included.
Statistical Information
P-Value
p<0.0001
Statistical Significance
p<0.0001
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website