Asian Citrus Psyllid and Huanglongbing (HLB)

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1 Asian Citrus Psyllid and Huanglongbing (HLB) Victoria Hornbaker California Department of Food and Agriculture Feb. 2, 2016

2 California s iconic citrus is at risk! Approximately 70% of residences have at least one citrus tree 300,000 commercial citrus acres Citrus Pest and Disease Prevention Program and the California Department of Food and Agriculture are calling on all California residents to join a collaborative effort to help save our state s citrus.

3 Help Stop the Asian Citrus Psyllid and Huanglongbing ACP UPDATE

4 The Pest The Asian citrus psyllid is originally from Asia and has made its way to most of the citrus producing regions of the world, including the United States Host specific pest of citrus and close relatives Can spread Huanglongbing as it feeds on stems and leaves First found in the United States (Florida) in 1998

5 ACP detected in Tijuana in June 2008 CDFA increased trapping/ visual surveys San Diego and Imperial Los Angeles, Orange and Ventura Riverside and San Bernardino Santa Barbara and Tulare Kern and Fresno San Luis Obispo, Santa Clara, Madera and San Joaquin San Benito, Stanislaus and San Mateo

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8 Help Stop the Asian Citrus Psyllid and Huanglongbing HLB UPDATE

9 The Disease Huanglongbing (HLB) Kills trees; no cure NOT harmful to humans or animals Found in Hacienda Heights in 2012 first in CA Impact on Citrus Florida economy - $4 billion in lost revenues 8,000 jobs lost 50 percent of Florida citrus acreage lost to HLB and citrus canker 100 percent of Florida citrus acreage infected to some degree with HLB

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12 HLB in Los Angeles County HLB was initially found at a residential property in Hacienda Heights in 2012 and San Gabriel in Trees treated for ACP within 800 meters of HLB finds. A 87-square mile quarantine is in place. Psyllids are collected and tested for HLB Samples of nearby tree leaves and plant material are collected and tested for HLB. Diseased trees are removed.

13 Kumquat Tree

14 Mexican Lime

15 Calamondin Tree

16 Mandarin Tree

17 Orange Tree Property 1

18 Orange Tree Property 2

19 The Disease Huanglongbing (HLB) Kills trees; no cure NOT harmful to humans or animals Found in Hacienda Heights in 2012 first in CA Impact on Citrus Florida economy - $4 billion in lost revenues 8,000 jobs lost 50 percent of Florida citrus acreage lost to HLB and citrus canker 100 percent of Florida citrus acreage infected to some degree with HLB

20 Help Stop the Asian Citrus Psyllid and Huanglongbing PROGRAM ACTIVITIES IN SANTA BARBARA

21 Cooperative Program Federal United States Department of Agriculture State California Department of Food & Agriculture Dept. of Pesticide Regulation Office of Health Hazard Assessment University of California - Cooperative Extension Local County Agricultural Commissioners Cities Residents Industry California Citrus Research Board Growers Residents Across Southern and Central California

22 Detection Trapping Visual Survey Delimitation Trapping Treatment Quarantine Outreach

23 Help Stop the Asian Citrus Psyllid and Huanglongbing TREATMENT UPDATE

24 Southern California Response US/Mexico Border Maintain 2 mile trapping buffer and 400 meter treatments. Integrated Pest Management in generally infested areas. Voluntary grower area-wide treatments where feasible Voluntary urban treatments in 400 meter buffer HLB statewide survey Grove trapping Biocontrol with parasitic wasps No treatment in areas where area-wide protocol is not feasible, focus on HLB survey and biocontrol. In response to HLB detections all properties within 800 meters will be treated.

25 Voluntary Area-wide Treatment Commercial Citrus Growers treat their own groves CDFA treats residential properties 400 meters around commercial properties Only if 75% of commercial citrus is treated Two applications per year Winter/Spring (foliar only) Fall (foliar and soil drench) Only host plants are treated Merit Soil Drench Merit is also used as a flea treatment for dogs & cats Tempo Foliar Application Also used for common indoor pests

26 Coordinated pesticide applications in commercial citrus help obtain better control of Asian citrus psyllid (ACP) while minimizing resistance. Citrus Health Management Areas (CHMAs) In Florida - Grower defined grouping of citrus acreage where grower participants coordinate ACP control efforts and management of pesticide resistance. In California, the areawide control concept has already successfully been done for glassy-winged sharpshooter (GWSS).

27 Psyllid Management Areas Santa Barbara County

28 Proposed Treatment Boundary Santa Barbara County Santa Barbara County

29 Residential Notification Notice of Treatment issued Prior to public open house, residents are mailed an informational packet The packet contains information on the open house, the pest, the treatment process, & the treatment area CDFA, OEHHA, DPR, & Ag Commissioners participate in public open house meeting

30 Public Meeting Notification Residents in the area are invited to a public meeting before treatment begins The invitation is mailed to each resident within 500 meters of the detection site

31 Public Meetings

32 Treatment Notification At least 48 hours prior to actual application, residents receive a hand delivered notice with contact information CDFA website 800 number where they can contact staff with questions or to arrange specific treatment times To date more than 70,000 residents properties have been protected statewide

33 Post-Treatment Notice Following the treatment, completion notices are left with the residents detailing which products were used, precautions to take and post-harvest intervals applicable to any citrus fruit on the property

34 Call to Action for Homeowners Don t move citrus plant materials out of the area Cooperate with agriculture officials Inspect monthly or whenever watering or pruning Stay informed:

35 What is at Stake Over 70% of Californians have citrus trees in their own backyards Your trees and the trees in you neighborhood are at risk Your community will loose a homegrown nutrition source Loss of an important part of the iconic California agricultural and residential landscape California produces more than 3 trillion tons of citrus for the national and international fresh citrus markets Commercial citrus supports thousands of jobs and supports our economy

36 HLB infected trees in a Florida Neighborhood.

37 If You Think You Find ACP or HLB Contact the California Department of Food & Agriculture Hotline: (800)