IPM Insect Update – September 12, 2016

University of California IPM Insect Update
Tehama County

InsectFirst BiofixSecond BiofixThird BiofixFourth BiofixActivity Moths/DayAvg. Deg. Days / DayDay Degrees from Biofix
Codling Moth3/245/317/118/15.1426.7741
Oriental Fruit Moth3/175/196/277/28.7532.21500
Peach Twig Borer4/75/317/118/224.126.8530
Navel Orangeworm Eggs4/7---.7922.73064
San Jose Scale3/21----31.03702
Walnut Scale Crawlers5/16------

  • In the walnut orchard we monitor, we now have 3 sprays on for WHF. Be careful – every orchard is different. Watch your traps and treat accordingly.
  • On 8/29 and 9/12 we measured a small increase in  scale crawler activity.
  • 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!


Leave a Reply

Your email address will not be published. Required fields are marked *