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LinkedInPosts Tagged: ACP
Movento 24C renewed for Citrus in CA
Movento (spirotetramet) has been renewed for use on citrus Asian citrus psyllid in California. It's a foliar spray that is systemic especially moving to new tissue where ACP feeds. It also controls some other pests, such as thrips and leafminer. It has a short persistence effect on natural enemies and has low toxicity issues.
As an interesting aside, I just learned that cryolite (Kryocide, Pro-Kil) which was considered for organic registration at one time, has lost its registration. It was a stomach poison that worked on leaf-feeding beetles and lepidopteran pests like orange tortrix. The high level of fluoride necessitated its loss of registration.
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ACP News
HLB Update - Ventura County Detections
There have been no new confirmed positive HLB detections in Ventura since early February, and no recent expansions to the 5-mile HLB quarantine in place in the Santa Paula area. To see a map of the current HLB quarantine areas and other details of HLB detections throughout the state, updated weekly, please visit maps.cdfa.ca.gov/WeeklyACPMaps/HLBWeb/HLB_Treatments.pdf.
Visit Information for Citrus Growers/Grove Managers for the most up to date mitigation requirements for moving bulk citrus to, from, and within an HLB quarantine. Even if mitigation is not required, it is still required for growers to submit an ACP-Free Declaration Form to the applicable county agricultural commissioner's (CAC) office in advance. The ACP-Free Declaration Form has been updated to reflect these changes.
There have been no confirmed positive HLB detections or HLB quarantines in Santa Barbara county to date.
2024 Ventura County ACP-HLB Grower Meeting June 11 - In person or via Zoom
All are welcome. June 11th, 8:30am - 1pm at United Water Conservation District, 1701 Lombard Street in Oxnard, or on Zoom (Meeting ID: 833 1062 0864, Passcode ACPHLB). This meeting has been approved for 4 DPR CEUs (1.25 Laws, 2.75 Other). To receive CEUs you must attend in person and pre-register with DPR at https://cereported/courses/290. If you are not seeking CEUs, there is no registration required.
The full agenda is below.
Citrus Program Leadership Changes
The California Department of Food and Agriculture's (CDFA) Pest and Disease Prevention Division (CPDPD) has announced that as of May 14, 2024, Victoria Hornbaker, former director of the CPDPD, transitioned to her new role as the director of the CDFA's Plant Health and Pest Prevention Services (PHPPS) Division. David Gutierrez, branch chief of the CPDPD, will serve as interim director while a recruitment process is conducted to find a permanent hire for the role. Read Full Article Here
Citrus Pest and Disease Prevention Committee Meetings -- Webinar and In Person
All meeting agendas and eventually the minutes are posted at www.cdfa.ca.gov/citrus committee/. The 2023-24 schedule for the Full Committee is here, and the schedule for Subcommittees is here.
- Executive Subcommittee - June 26
- Finance Subcommittee - July 9
- Operations Subcommittee - July 10
- Outreach Subcommittee - July 17
- Full Committee - August 8
All meetings are free and open to the public to listen to or make public comment. Meetings are currently in person and accessible via phone and/or webinar. Links to register for and join meetings are included in agendas when posted.
For a list of all current committee members, click here.
Important ACP/HLB Documents and Resources
- CDFA Citrus Division website: https://www.cdfa.ca.gov/Citrus/
- Regulatory/Quarantine
oSign up for regulatory updates from the Citrus Pest and Disease Prevention Division at www.cdfa/signup-email-updates.
oInteractive map to find out how close you are to HLB detections.
oRegulatory requirements for moving bulk citrus: Information for Citrus Growers
oSummary of regulatory requirements in the event of an HLB detection in commercial citrus: citrusinsider.org/Regulatory-Flyer
oSanta Barbara County Ag Commissioner's Office
- General ACP/HLB
oInformation on the state ACP/HLB program including maps, quarantine information, and a signup option for email alerts: citrusinsider.org/
oBiology of ACP and HLB, detection maps and recommendations for monitoring, eradication and management: ucanr.edu/sites/acp/
oUC IPM recommendations for ACP insecticides
oVideo on Best Practices in the Field, available in English and Spanish
oEn español -- Spanish-only ACP/HLB presentation video presentation and audio-only recording.
- Research
oLatest Science Advisory Panel Report
oUC Ag Experts Talk presentations on management of various citrus pests and diseases are available for viewing here and here on YouTube.
oCitrus Research Board video presentations from webinar series and California Citrus Conference
oSummaries of the latest research to combat HLB: ucanr.edu/sites/scienceforcitrushealth/
oScience-based analyses to guide policy decisions, logistics, and operations: www.datoc.us
-------- FOR MORE INFORMATION, CONTACT
Cressida Silvers
CA Citrus Pest and Disease Prevention Program
ACP/HLB Grower Liaison
Ventura, Santa Barbara and San Luis Obispo Counties
805 284-3310 (phone or text)
ACP grower meeting june 2024
What Happens in a Quarantine?
The recent find of an infected adult Asian citrus psyllid in Santa Paula prompted the search for the potentially infected tree by CA Department of Food and Agriculture personnel to spread out to look and test. Two trees were found and presumably they will be destroyed. This now prompts a much more intense survey of the surrounding 2/10ths of a mile of those trees. It also places a quarantine on the movement of fruit out of that area, extending out 5 miles. That means no fruit or plant parts should be taken out of the area, potentially spreading the insects and disease to other areas, unless those plant parts have been properly treated. You can read more about the actions taken in a quarantine when infected insects or plants are found HERE . And in this document you can read about the details in and around a quarantined area and how the fruit and plants should be treated HERE.
As is the case in the spread of many invasive pests, it is humans that can be the main mode of movement of the pest and disease.
ACP nymphs sam droege
Detection of HLB In Ventura - Quarantine
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hlb defprmed citrus
Watch Out Argentine Ant. Watch Out Citrus Psyllid
Asian citrus psyllids transmit a disease that can ruin your oranges. Even worse, Argentine ants protect them in exchange for the psyllids' delicate ribbons of sugary poop, called honeydew. So, researchers are helping orange growers fight back with invisible lasers, ghastly wasps and more trickery.
A tiny insect called the Asian citrus psyllid is threatening your oranges, lemons and limes. Smaller than a grain of rice, the agricultural pest sucks the sap from citrus trees and in doing so spreads a disease that ruins the fruit and eventually kills the citrus trees. “It's pretty straightforward to tell if you have an Asian citrus psyllid infestation in your citrus,” says Mark Hoddle, who leads a laboratory at UC Riverside that studies the pest and how to beat it. “Just check the tender young green leaves at the tips of the branches. If you see the white curly cues, the insect poop dripping off of those leaves, that's almost certainly a characteristic symptom of an Asian citrus psyllid infestation.” Hoddle's team is studying novel ways to keep psyllids out of citrus orchards, but that task is complicated by the psyllid's relationship with another insect, the Argentine ant. “Their relationship is rather sinister,” says Hoddle. “The Argentine ants harvest the honey dew that the Asian citrus psyllid nymphs excrete because it's nice and sugary and the ants love eating sugar. In return for providing that sweet delicacy, the ants protect the Asian citrus psyllids from their natural enemies like the predators and the parasitic wasps that we have introduced from Pakistan.” “The psyllids need protection from the ants because they lack defense systems,” says Hoddle. “They have recruited mercenaries to protect them.” So to protect the valuable citrus industry, Hoddle and his team are going after the psyllids' ant bodyguards.
https://www.youtube.com/watch?v=MtPXows1FWs
ACP nymphs sam droege
