Agriculture: Walnut Pest Management Guidelines

Authors and Credits

UC IPM Pest Management Guidelines Walnut

UC ANR Publication 3471

Authored by University of California faculty, specialists, and farm advisors. Produced and edited by UC Statewide IPM Program, University of California Agriculture and Natural Resources.

[UC Peer Reviewed]

Suggested Citation

Grant JA, Symmes EJ, Baldwin RA, Fichtner EJ, Roncoroni JA, Westerdahl BB, Adaskaveg JE, Bostock RM, Browne GT, Buchner RP, Coates WW, Elkins RB, Gubler WD, Hanson B, Hasey JK, Hembree KJ, Michailides TJ, Seybold SJ, Van Steenwyk RA, Westphal A. Revised continuously. UC IPM Pest Management Guidelines Walnut. UC ANR Publication 3471. Oakland, CA.

Crop Leadership Team

E.J. Symmes, UC Cooperative Extension Butte County (crop team leader)

J.R. Rijal, UC Cooperative Extension Modesto County (IPM facilitator)

R. DeBiase, UC IPM, Davis (coordinator)

R.A. Baldwin, Wildlife, Fish and Conservation Biology, UC Davis

E.J. Fichtner, UC Cooperative Extension Tulare County

J.A. Roncoroni, UC Cooperative Extension Napa County

B.B. Westerdahl, Nematology, UC Davis

Diseases

J.E. Adaskaveg, Plant Pathology, UC Riverside

R.P. Buchner (emeritus), UC Cooperative Extension Tehama County

G.T. Browne, Plant Pathology, UC Davis

W.D. Gubler (emeritus), Plant Pathology, UC Davis

T.J. Michailides, Kearney Agricultural Research and Extension Center, Parlier

J.K. Hasey, UC Cooperative Extension Sutter and Yuba Counties

E.J. Fichtner, UC Cooperative Extension Tulare County

S.J. Seybold, Entomology, UC Davis (thousand cankers disease)

R.M. Bostock, Plant Pathology, UC Davis (thousand cankers disease)

Acknowledgment for Contributions to Diseases

B.L. Teviotdale (emeritus), Kearney Agricultural Research and Extension Center, Parlier

Insects, Mites, and Other Invertebrates

J.A. Grant (emeritus), UC Cooperative Extension San Joaquin County

J.K. Hasey, UC Cooperative Extension Sutter and Yuba Counties

W.W. Coates (emeritus), UC Cooperative Extension San Benito County

R.A. Van Steenwyk (emeritus), Environmental Science, Policy, and Management, UC Berkeley

E.J. Symmes, UC Cooperative Extension Butte County (IPM facilitator)

S.J. Seybold, Entomology, UC Davis (walnut twig beetle)

R.M. Bostock, Plant Pathology, UC Davis (walnut twig beetle)

Acknowledgment for Contributions to Insects, Mites, and Other Invertebrates

W.J. Bentley (emeritus), UC IPM and Kearney Agricultural Research and Extension Center, Parlier (Emeritus)

L.C. Hendricks (emeritus), UC Cooperative Extension Merced County (Emeritus)

W.H. Olson, UC Cooperative Extension Butte County (Emeritus)

C. Pickel (emeritus), UC Cooperative Extension Sutter and Yuba Counties (Emeritus)

G.S. Sibbett (emeritus), UC Cooperative Extension Tulare County (Emeritus)

D. Light, USDA, Albany (Emeritus. codling moth)

Nematodes

B.B. Westerdahl, Nematology, UC Davis

A. Westphal, Kearney Agricultural Research and Extension Center, Parlier

J.K. Hasey, UC Cooperative Extension Sutter and Yuba Counties

Acknowledgment for Contributions to Nematodes

U.C. Kodira, Nematology, UC Davis

M.V. McKenry (emeritus), Nematology, UC Riverside

Vertebrates

R.A. Baldwin, Wildlife, Fish and Conservation Biology, UC Davis

Weeds

J.A. Roncoroni, UC Cooperative Extension Napa County

B. Hanson, Plant Sciences, UC Davis

K.J. Hembree, UC Cooperative Extension Fresno County

R.B. Elkins, UC Cooperative Extension Lake County

J.K. Hasey, UC Cooperative Extension Sutter and Yuba Counties

Acknowledgment for Contributions to Weeds

K.K. Anderson, UC Cooperative Extension Stanislaus County

C.L. Elmore (emeritus), Weed science and Plant Sciences, UC Davis and Salinas

J.A. Grant (emeritus), UC Cooperative Extension San Joaquin County

W.O. Reil (emeritus), UC Cooperative Extension Solano and Yolo Counties

T.S. Prather, Department of Plant, Soil, and Entomological Sciences (PSES), University of Idaho

A. Shrestha, Plant Science, Fresno State

G.S. Sibbett (emeritus), UC Cooperative Extension Tulare County

J.J. Stapleton, UC IPM and Kearney Agricultural Research and Extension Center, Parlier

Acknowledgment for Contributions to Year-Round IPM Program

W.J. Bentley (emeritus), UC IPM and Kearney Agricultural Research and Extension Center, Parlier (Emeritus)

W.H. Krueger (emeritus), UC Cooperative Extension Glenn County

D. Light, USDA, Albany

M.V. McKenry (emeritus), Nematology, UC Riverside

C. Pickel (emeritus), UC Cooperative Extension Sutter and Yuba Counties

A. Shrestha, Plant Science, Fresno State

Coordinator

R. DeBiase, UC IPM, Davis

Production

F.G. Rosa, UC IPM, Davis

This material is partially based on work supported by the National Institute of Food and Agriculture, U.S. Department of Agriculture, Crop Protection and Pest Management Competitive Grants Program.

These guidelines represent the best information currently available to the authors and are intended to help you make the best choices for an IPM program. Not all formulations or registered pesticides are mentioned. Always read the label and check with local authorities for the most up-to-date information regarding registration and restrictions on pesticide use. Check with your agricultural commissioner for latest restricted entry intervals.

To be used with Integrated Pest Management for Walnuts, 3rd edition, UC ANR Publication 3270.