IPM Insect Update – June 6, 2016

University of California IPM Insect Update
Tehama County

InsectFirst BiofixSecond BiofixThird BiofixFourth BiofixActivity Moths/DayAvg. Deg. Days / DayDay Degrees from Biofix
Codling Moth3/245/31--1.329.3173
Oriental Fruit Moth3/175/19--.0835.0507
Peach Twig Borer4/7---.3328.71038
Navel Orangeworm Eggs4/7---.4025.7817
San Jose Scale3/21----28.31128
Walnut Scale Crawlers5/16------

  • Notice the second  male Codling moth biofix 5/31. Our in- orchard weather stations show a 173 Degree day accumulation.
  •  Second OFM biofix 5/19 monitored in almond just south of Red Bluff.
  •  We have Walnut Husk Fly traps up and no flies yet.
  • We measured first walnut scale crawlers 5/16/16 on both Howard and Chandler near Red Bluff. Scale crawlers are still active as of 6/6/16 but appear to be declining suggesting we are past peak emergence.
  • Additional Pest management information is available at the UC IPM website including a day degree calculator (http://www.ipm.ucdavis.edu).

Richard P. Buchner and Cyndi K. Gilles
Orchard Advisor & Research Associate
UC Cooperative Extension Tehama County
(530) 527-3101

Thank you for our trap supplies!


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