WITHDRAWN: Capturing the economic value of biological control in western tree fruit

Peter H. Westigard, Robert Ward Zwick, The pear psylla in Oregon Corvallis : Agricultural Experiment Station, Oregon State University. ,(1972)

R. W. Zwick, G. J. Fields, Integrated control of pear Psylla in Oregon's Hood River Valley [Corvallis, Or.] : Agricultural Experiment Station, Oregon State University. ,(1977)

S. C. Hoyt, L. E. Caltagirone, The Developing Programs of Integrated Control of Pests of Apples in Washington and Peaches in California Biological Control. pp. 395- 421 ,(1971) , 10.1007/978-1-4615-6528-4_18

David R Horton, Debra A Broers, Richard R Lewis, David Granatstein, Richard S Zack, Thomas R Unruh, Andrew R Moldenke, John J Brown, None, Effects of mowing frequency on densities of natural enemies in three Pacific Northwest pear orchards Entomologia Experimentalis Et Applicata. ,vol. 106, pp. 135- 145 ,(2003) , 10.1046/J.1570-7458.2003.00018.X

L.J. Penrose, W.G. Thwaite, C.C. Bower, Rating index as a basis for decision making on pesticide use reduction and for accreditation of fruit produced under integrated pest management Crop Protection. ,vol. 13, pp. 146- 152 ,(1994) , 10.1016/0261-2194(94)90166-X

David W. Onstad, Lisa M. Knolhoff, Finding the Economics in Economic Entomology Journal of Economic Entomology. ,vol. 102, pp. 1- 7 ,(2009) , 10.1603/029.102.0101

Georgianne J.K. Griffiths, John M. Holland, Alastair Bailey, Matthew B. Thomas, Efficacy and economics of shelter habitats for conservation biological control Biological Control. ,vol. 45, pp. 200- 209 ,(2008) , 10.1016/J.BIOCONTROL.2007.09.002

Everett C. Burts, Effectiveness of a Soft-Pesticide Program on Pear Pests1 Journal of Economic Entomology. ,vol. 76, pp. 936- 941 ,(1983) , 10.1093/JEE/76.4.936

Anna K. Fiedler, Doug A. Landis, Steve D. Wratten, Maximizing ecosystem services from conservation biological control: The role of habitat management Biological Control. ,vol. 45, pp. 254- 271 ,(2008) , 10.1016/J.BIOCONTROL.2007.12.009

Harold F. Madsen, Notes on Anthocoris melanocerus Reuter (Hemiptera: Anthocoridae) as a Predator of the Pear Psylla in British Columbia Canadian Entomologist. ,vol. 93, pp. 660- 662 ,(1961) , 10.4039/ENT93660-8