Your source for orchard news & information in the Sacramento Valley
University of California Sacramento Valley Integrated Pest Management Update July 10, 2025 Disclaimer: Pests/natural enemies’ activities and abundance updates provided on this site are for reference purpose only. Information provided here do not replace or supersede your orchard site-specific pest activity … Continue reading
Sudan Gyawaly, Area IPM Advisor, UCCE Northern Sacramento Valley Spider mites are one of the pests that can become a problem in prunes. Two-spotted spider mite and Pacific spider mite are commonly found in prunes in the Central Valley. Of … Continue reading
Sudan Gyawaly, UCCE IPM Advisor, Butte, Colusa, Sutter-Yuba, Glenn, and Tehama Counties Jhalendra Rijal, UCCE IPM Advisor, Stanislaus, Merced and San Joaquin Counties Brown spots caused by feeding damage from true bugs can be graded as a defect and so … Continue reading
University of California Sacramento Valley Integrated Pest Management Update April 29, 2025 Disclaimer: Pests/natural enemies’ activities and abundance updates provided on this site are for reference purpose only. Information provided here do not replace or supersede your orchard site-specific pest activity … Continue reading
University of California Sacramento Valley Integrated Pest Management Update April 7, 2025 Disclaimer: Pests/natural enemies’ activities and abundance updates provided on this site are for reference purpose only. Information provided here do not replace or supersede your orchard site-specific pest activity … Continue reading
These updates are provided as reference information for Sacramento Valley orchard pest and natural enemy activity. Continue reading
UC IPM has released a new resource to help identify carpophilus beetle Continue reading
The SacValleyOrchards team has started posting pest monitoring reports/updates for major walnut and almond pests for our region Continue reading
Originally written by Emily J. Symmes, Former Sacramento Valley Area IPM Advisor Revised in June 2024 by Sudan Gyawaly, Sacramento Valley Area IPM Advisor The good news is that a truly sound IPM program should already have you considering economic … Continue reading
These updates are provided as reference information for Sacramento Valley orchard pest and natural enemy activity. Continue reading
These updates are provided as reference information for Sacramento Valley orchard pest and natural enemy activity. Continue reading
Navel orangeworm is impossible to control completely, it must be carefully managed to reduce damage and improve grower income. Growers and PCAs are fighting back to manage NOW this year. Continue reading
‘Leaf curl plum aphid’ and ‘mealy plum aphid’ are the key pests of prune orchards in the northern Sacramento Valley. Continue reading
Winter sanitation is becoming increasingly important. This past year many growers in the Sacramento Valley experienced levels of navel orangeworm (NOW) damage not seen since the early 1980s. A successful winter sanitation can reduce damage from NOW and other almond-eating pests, like the Carpophilus beetle. Continue reading
Hullsplit timing varies among tree water status, varieties, geographic regions, and weather conditions. Understanding NOW activity and hullsplit status is vital for timely insecticide applications. Research and field experience tell us that spraying earlier, rather than later, is the most effective strategy for reducing NOW damage. Continue reading