Identify Bugs

Before using a product to manage a specific pest, it's important that you correctly identify the pest. County Agricultural Commissioners or a University of California Cooperative Extension Master Gardener can help you identify a pest to ensure that you are using the correct methods or products for dealing with it.

Since ants are a very common pest, use this key to help identify the type of ant you have.

Select your County below to find out the location of your County Agricultural Commissioner and/or master gardener office in your area.

Alameda | Contra Costa | Del Norte | Humboldt | Los Angeles | Marin | Mendocino | Monterey | Napa | San Benito | San Francisco | San Luis Obispo | San Mateo | Santa Barbara | Santa Clara | Santa Cruz | Solano | Sonoma | Stanislaus | Trinity

Alameda County

Master Gardener

Alameda County, CA
Kathy Hofmann
Master Gardener Program Coordinator
University of California
Agriculture & Natural Resources
Cooperative Extension
1131 Harbor Bay Parkway, Suite 131
Alameda
94502
510-639-1371

kahofmann@ucdavis.edu

Agricultural Commissioner

Alameda County, CA
Dennis Bray
224 W. Winton Ave., Rm. 184
Hayward, CA
94544
(510) 670-5232
(510) 783-3928
M-F, 8:30-4:30

Contra Costa County

Master Gardener

Contra Costa County, CA
Bethallyn Black Rogers
Master Gardener Coordinator, UCCE
75 Santa Barbara Road, 2nd Floor
Pleasant Hill
94523
925-646-6586

Agricultural Commissioner

Contra Costa County, CA
Ed Meyer
2366 A. Stanwell Circle
Concord, CA
94520
(925) 646-5250
(925) 646-5732
M-F, 8:00-5:00

Del Norte County

Master Gardener

Del Norte County, CA

Agricultural Commissioner

Del Norte County, CA
Glenn Anderson
2650 Washington Blvd.
Crescent City, CA
95531
(707) 464-7235
(707) 465-6044
M-F, 9:00-12:00 - 1:00- 5:00

Humboldt County

Master Gardener

Humboldt County, CA
5630 South Broadway
Agricultural Center Building
Eureka
95503-6998
707-445-7351

Agricultural Commissioner

Humboldt County, CA
John Falkenstrom
5630 S. Broadway
Eureka, CA
95503 - 6998
(707) 445-7223
(707) 268-2203
M-F, 8:00-12:00 - 1:00- 5:00

Also Contact:
Humboldt County Vector Control Officer

707-445-6215

Los Angeles County

Master Gardener

Los Angeles County, CA
(323) 260-3238
http://celosangeles.ucdavis.edu
mglosangeles@ucdavis.edu

Agricultural Commissioner

Los Angeles County, CA
Kurt E. Floren
12300 Lower Azusa Road
Arcadia, CA
91006
(626) 575-5471

Mon - Thu, 7:00 a.m. - 5:30 p.m
http://acwm.co.la.ca.us

Marin County

Master Gardener

Marin County, CA
1682 Novato Blvd., Suite 150B
Novato
94947
(415) 499-4204

Agricultural Commissioner

Marin County, CA
Stacy Carlsen
1682 Novato Blvd., 150-A
Novato, CA
94947 - 7021
(415) 499-6700
(415) 499-7543
 M-F, 9:00-3:00

Mendocino County

Master Gardener

Mendocino County, CA
Not Available

Agricultural Commissioner

Mendocino County, CA
Dave Bengston
579 Low Gap Road
Ukiah, CA
95482 - 3745
(707) 463-4208
(707) 463-0240
 M-F, 8:00-12:00 - 1:00-5:00 1:00-5:00

Monterey County

Master Gardener

Monterey County, CA
Master Gardener Hotline
(serves Santa Cruz, Monterey, and San Benito Counties)

831-763-8007

Agricultural Commissioner

Monterey County, CA
Eric Lauritzen
1428 Abbott Street
Salinas, CA
93901
(831) 759-7325
(831) 422-5003
M-F, 8:00-5:00

Napa County

Master Gardener

Napa County, CA

Agricultural Commissioner

Napa County, CA
David Whitmer
1710 Soscol Avenue, Suite 3
Napa, CA
94559 - 1315
(707) 253-4357
(707) 253-4881
M-F, 8:00-5:00

San Benito County

Master Gardener

San Benito County, CA
Master Gardener Hotline
(serves Santa Cruz, Monterey, and San Benito Counties)

831-763-8007

Agricultural Commissioner

San Benito County, CA
Mark Tognazzini
3224 Southside Road P.O. Box 699 P.O. Box 699
Hollister, CA
95024
(831) 637-5344
(831) 637-9015
M-F, 8:00-5:00

San Francisco County

Master Gardener

San Francisco County, CA

Agricultural Commissioner

San Francisco County, CA
Dave Frieders
501 Ceasar Chavez Street Suite 109-A
San Francisco, CA
94124 - 1209
(415) 285-5010
(415) 285-8776
M-F, 8:00-5:00

San Luis Obispo County

Master Gardener

San Luis Obispo County, CA
San Luis Obispo Master Gardeners
San Luis Obispo
93401
805-782-8530
http://groups.ucanr.org/slomg/index.cfm
 
Agricultural Commissioner

San Luis Obispo County, CA
Bob Lilley
2156 Sierra Way, Suite A
San Luis Obispo, CA
93401 - 4556
(805) 781-5910
(805) 781-1035
M-F, 8:00-5:00

San Mateo County

Master Gardener

San Mateo County, CA
Katherine Jones
Horticulture Program Representative
Half Moon Bay

(650) 726-9059 ext 109
kahofmann@ucdavis.edu

Agricultural Commissioner

San Mateo County, CA
Gail M. Raabe
728 Heller Street, P.O. Box 999
Redwood City, CA
94064 - 0999
(650) 363-4700
(650) 367-0130
M-F, 8:00-5:00

Santa Barbara County

Master Gardener

Santa Barbara County, CA

Agricultural Commissioner

Santa Barbara County, CA
William D. Gillette
263 Camino Del Remedio
Santa Barbara, CA
93110 - 1335
(805) 681-5600
(805) 681-5603
M-F, 8:00-4:30

Santa Clara County

Master Gardener 1

Santa Clara County, CA
Master Gardener Program (UC Extension)
1553 Berger Dr., Bldg 1
San Jose
95112-2795
(408)282-3105
http://www.mastergardeners.org/links.html
     
Master Gardener 2

Santa Clara County, CA
Master Gardener branch at Gamble Garden
1431 Waverley St.
Palo Alto
650-329-1356
http://www.gamblegarden.org/resources/resources.html
 
Agricultural Commissioner

Santa Clara County, CA
Greg Van Wassenhove
1553 Berger Dr., Bldg. 1
San Jose, CA
95112 - 2795
(408) 918-4600
(408) 286-2460
M-F, 8:00-5:00

Santa Cruz County

Master Gardener

Santa Cruz County, CA
Master Gardener Hotline
(serves Santa Cruz, Monterey, and San Benito Counties)
831-763-8007

Agricultural Commissioner

Santa Cruz County, CA
David Moeller
175 Westridge Drive
Watsonville, CA
95076 - 2797
(831) 763-8080
(831) 763-8234
M-F, 8:00-5:00

Solano County

Master Gardener

Solano County, CA

Agricultural Commissioner

Solano County, CA
Susan Cohen
501 Texas Street
Fairfield, CA
94533
(707) 421-7465
(707) 429-0827
M-F, 8:30-5:00

Sonoma County

Agricultural Commissioner

Sonoma County, CA
John Westoby
133 Aviation Blvd, Suite 110
Santa Rosa, CA
95403 - 2893
(707) 565-2371
(707) 565-3850
M-F, 8:00-5:00

Stanislaus County

Master Gardener

Stanislaus County, CA
3800 Cornucopia Way, Suite A
Modesto

209-525-6800

Trinity County

Master Gardener

Trinity County, CA

Agricultural Commissioner

Trinity County, CA
Mark Lockhart
Civil Defense Hall, Box 1466
Weaverville, CA
96093 - 1466
(530) 623-1356
(530) 623-1391
M-F, 8:00-12:00 1:00-5:00