310 FIFTH STREET, COLUSA, CA 95932    •    (530) 458-4141
NEWSPAPER PUBLISHED WEDNESDAY • WEBSITE UPDATED THURSDAY

Home Opinions Master Gardener's Corner: Peach Leaf Curl

Master Gardener’s Corner: Peach Leaf Curl

Gerry Hernandez | ghernandez@ucanr.edu

Does your peach or nectarine trees look like someone threw hot oil on it and the leaves blistered? You have peach leaf curl.

Peach leaf curl is a fungal disease that affects only peach and nectarine trees. Distorted, reddened foliage in the spring is a distinctive symptom. If the infection continues untreated for several years, the tree will decline. Treatment in spring, after symptoms appear, won’t be effective. It’s not too late to spray for peach leaf curl.

Treat trees with a fungicide in late fall and winter.

Treat just after leaves have fallen in late November or December.

Give a second application in late winter, especially during wet winters.

Don’t apply fungicides during the growing season.

A rule of thumb is to apply fungicides at Thanksgiving, Christmas, and Valentine’s Day.

Look for symptoms in spring:

New leaves redden and pucker

A second set of normal laves will replace fallen leaves, and the tree will appear normal.

Choose effective fungicides:

The safest effective products available for backyard trees are copper soap (copper octanoate) or fixed copper fungicide (copper ammonium).

  Apply these with a horticultural oil.

Yes, my tree has peach leaf curl. I only sprayed once in the winter. When we have wet winters 2 to 3 sprays are recommended.

For more information on peach leaf curl, visit ipm.ucdavis.edu.

Avatar
UCCE Colusa County Master Gardenershttp://cecolusa.ucanr.edu/Master_Gardeners/
The Master Gardeners of Colusa County can be contacted by: - Email us at glhernandez@ucanr.edu - Call us at 530-458-0570 - Visit us at our plant clinics, farmers markets, Colusa County Fair and at other county events - Visit us at our office, 100 Sunrise Blvd., Ste. E, Colusa, Ca 95932, our office hours are, Tuesdays 9am to 12:00 and 1pm to 4:00

Recent News

Colusa County Free Library Opens for Curbside Services

On Wednesday, May 20, the Colusa County Free Library began offering curbside pickup of library materials placed on hold via the library’s online portal....

Local Government

Williams hit hard by economic downturn

COVID-19 is expected to take a tremendous economic toll in Williams, whose revenue from Interstate-5 commerce is the highest in Colusa County. Finance Director Rex...

Bridge Street work on schedule

Work continues along a mile-long stretch of Bridge Street that is part of a $19.5 million Caltrans roadway rehabilitation project. The project that got underway...

Public & Legal Notices

County of Colusa – Groundwater Commission Notice of Public Hearing

  COUNTY OF COLUSA GROUNDWATER COMMISSION NOTICE OF PUBLIC HEARING   NOTICE IS HEREBY GIVEN THAT the Colusa County Groundwater Commission will hold a Public Hearing for the purpose...

Notice of Vacancy – Princeton Water Works District

NOTICE OF VACANCY NOTICE IS HEREBY GIVEN THAT the Colusa County Board of Supervisors is soliciting applications to fill a vacancy for an unexpired term...

County of Colusa – Notice of Adoption of a Resolution of Intent to Temporarily Sell and Transfer Central Valley Water Project Rights for the...

COUNTY OF COLUSA NOTICE OF ADOPTION BY THE COLUSA COUNTY BOARD OF SUPERVISORS OF A RESOLUTION OF INTENT TO TEMPORARILY SELL AND TRANSFER CENTRAL VALLEY...

FBN – Superior Tire Service

FICTITIOUS BUSINESS NAME STATEMENT FILE NO. 2020-0000039 Date filed: APRIL 30, 2020 The following persons are doing business as:   SUPERIOR TIRE SERVICE BUSINESS ADDRESS: 247 BRIDGE STREET, COLUSA, CA...

Colusa County Board of Supervisors – Notice of Public Hearing

  COLUSA COUNTY BOARD OF SUPERVISORS NOTICE OF PUBLIC HEARING NOTICE IS HEREBY GIVEN THAT the Colusa County Board of Supervisors will conduct a Public Hearing on...