| Authors(s) | Bentley, W.J., Coates, W.W., Hasey, J., Hendricks, C.L., Olson, W.H., Pickel, C., Sibbett, G.S. and R.A. Van Steenwyk, 2000. Pests of walnut. University of California Pest Management Guidelines. http://www.ipm.ucdavis.edu/PMG/selectnewpest.walnuts.html |