Vole repellent

✻ = Required

A recent study found that the bird repellent, anthraquinone, was highly effective at reducing girdling damage (>90% reduction in damage) from voles to stems of young trees. The repellent also exhibited substantial longevity (likely several months and potentially longer). We are interested in grower feedback on the potential for using this repellent for minimizing vole damage to orchard and vine crops. We would greatly appreciate you taking the time to answer the following survey questions to assist our efforts. The survey is very short and should take less than 3 minutes. Thanks you!

Roger A. Baldwin, Ph.D.

Wildlife Specialist

Department of Wildlife, Fish, and Conservation Biology

One Shields Ave.

University of California, Davis

Davis, CA 95616

Phone: 530-752-4551

E-mail: rabaldwin@ucdavis.edu

Please identify all types of crops below for which you at least occasionally experience vole damage: ✻

Citrus Other fruit trees Nut crops Vines Other

If anthraquinone was registered as a vole repellent, would you use it in these crops to reduce girdling damage?

Yes No

Combining vegetation removal around the base of trees/vines with anthraquinone applications can further reduce vole damage in some settings. Do you currently keep vegetation removed for 2-3 feet from around the base of trees and vines?

Yes No

Do you anticipate removing vegetation for 2-3 feet from around the base of trees and vines in the future given the potential added benefit provided by a combination of vegetation removal and anthraquinone applications?

Yes No

Please add any additional comments that you think might be relevant.