acp

Follow Thresholds for ACP Control

Daniel Cooper All In For Citrus Podcast, HLB Management, Psyllids

One of the key components of managing HLB is keeping its vector, the Asian citrus psyllid (ACP), in check. Management recommendations for the pest have evolved over time. The history of that evolution is a subject of discussion in the November episode of the All In For Citrus podcast. Lukasz Stelinksi, an entomologist with the University of Florida Institute of …

Eliminate Fire Ants to Improve ACP Control

Josh McGill Biologicals, Pests

By Lukasz Stelinski Ants can be involved in mutualistic relationships with honeydew-producing hemipterans. Ants provide protection against their natural enemies, and in return, hemipterans reward ants with honeydew. Such mutualism may affect population regulation of hemipterans by third trophic level predators. However, current knowledge regarding the effects of this food-for-protection mutualism of ants with Asian citrus psyllid (ACP, Diaphorina citri) …

Revised Approach to Reduce ACP Management Costs

Josh McGill HLB Management, Tip of the Week

By Lukasz Stelinski Vector control is considered a basic component of HLB management even under high disease incidence scenarios. A recent study compared the effects of three different economic thresholds (ET-0.2, ET-0.5 and ET-1.0) and one calendar-based application schedule on the incidence of Asian citrus psyllid (ACP) and beneficial species in plots of commercially grown citrus. The study also examined …

Alternative Management Tools for ACP Under Development

Josh McGill Education, HLB Management, Psyllids

By Lourdes C. Pérez Cordero Management of the Asian citrus psyllid (ACP) in the HLB era is incredibly important. This well-known insect can vector and facilitate the spread of the bacterium associated with HLB disease. Therefore, effective reduction of ACP populations can be beneficial for the citrus industry. But how exactly do we manage this pest? Unfortunately, there is not …

ACP Detection Response: ‘The System Is Working’

Josh McGill California Corner, HLB Management, Pests

County and state officials in California have been actively responding to various Asian citrus psyllid (ACP) discoveries in the Central Valley in recent weeks. Kern, Tulare and Fresno counties have all reported an ACP detection over the last month. The Citrus Pest and Disease Prevention Division (CPDPD) has been implementing delimitation protocols and necessary treatment programs. CPDPD Director Victoria Hornbaker …

ACP Found at Packinghouse and Juice Plant in California

Josh McGill California Corner, Psyllids

The California Department of Food and Agriculture (CDFA) recently urged all citrus industry members to be extra vigilant in their Asian citrus psyllid (ACP) mitigation steps and adherence to regulatory practices. The request is in response to ACP detections in the Central Valley over the last few weeks. ACP is the vector of HLB disease.  Multiple ACP were detected on …

Comparison of ACP/HLB Management Tools for Citrus Resets

Josh McGill Diseases, HLB Management, Research

By Lauren Diepenbrock, Megan Dewdney, Christopher Vincent and Davie Kadyampakeni As the threat of potential shutdowns loomed in March 2020, a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) team put the final plants in the ground, individual protective covers (IPCs) on trees, and kaolin and pesticide applications on a 2.7-acre planting at the Citrus Research and Education …

ACP and the HLB Pathogen Are Made for Each Other

Josh McGill Citrus, HLB Management, Research

Nabil Killiny, an associate professor of plant pathology for the University of Florida Institute of Food and Agricultural Sciences, has been studying the relationship between the bacterium that causes HLB (Candidatus Liberibacter asiaticus) and its vector the Asian citrus psyllid (ACP). Globally, insect-borne vector pathogens are responsible for more than 700 plant diseases. HLB ranks high among those in terms …

ACP Management With UV-Reflective Mulch and Flush-Timed Sprays

Tacy Callies HLB Management

By Jawwad Qureshi, Lauren Diepenbrock and Davie Kadyampakeni The future of the Florida citrus industry depends on successfully replacing the present bearing tree inventory with new plantings and transitioning them into crop production. This would be a relatively routine process were it not for the ubiquitous presence of huanglongbing (HLB) and its vector, Asian citrus psyllid (ACP). Early infection can …

Free ACP Scouting Service

Tacy Callies California Corner, Psyllids

Through a grant from the U.S. Department of Agriculture (USDA), California and Texas citrus growers can apply for the use of detection dogs to survey their groves for Asian citrus psyllid (ACP). The ACP-hunting canine scouts are highly trained and have shown to be more than 90% accurate when tested in various environments. The information obtained from the scouting can …

Kaolin Helps With ACP and HLB

Ernie Neff HLB Management

According to researchers in Florida and California, kaolin clay, especially red kaolin, aids in the management of Asian citrus pysllids (ACP) and the HLB they spread, among other attributes. Christopher Vincent of the University of Florida Institute of Food and Agricultural Sciences and Monique Rivera of the University of California at Riverside recently presented a webinar about kaolin. The University …

Task Force Recommendations for ACP in Kern County

Len Wilcox California Corner

The San Joaquin Valley ACP/HLB Area-Wide Task Force strongly recommends citrus growers in Kern County, California, to add an Asian citrus psyllid (ACP)-effective material to their pre-bloom or spring foliar treatments. Since ACP build populations on the young leaf flush, the sooner growers spray, the better. Fortunately, this timing coincides with pre-bloom treatments for katydid, worms, thrips and other pests. …

Tarping Proven to Reduce ACP Movement

Len Wilcox California Corner, Psyllids

Researchers at the California Data Analysis and Tactical Operations Center (DATOC) have analyzed Asian citrus psyllid (ACP) trapping data along major transportation routes before and after tarping regulations for bulk citrus shipments were enacted. The purpose was to determine the effectiveness of the policy. DATOC is an independent group of scientists sponsored by the Citrus Research Board and the California …

acp

ACP Monitoring Efforts in Georgia

Tacy Callies Georgia

The citrus industry is expanding in Georgia. With that growth comes the need to slow the spread of the Asian citrus psyllid (ACP), the vector of HLB disease. Although not yet found in Georgia’s commercial citrus production, there have been confirmed HLB-positive residential citrus trees. The disease has the potential to greatly hinder the state’s citrus industry. Therefore, University of …

acp

Time for ACP Dormant Season Sprays

Tacy Callies HLB Management, Tip of the Week

By Lauren Diepenbrock Pest management is an ongoing effort in Florida citrus. Taking advantage of pest life cycles, whether they are tied to the season or plant phenology, can make management efforts have greater impacts on pest populations. For many citrus growers, managing the impacts of Asian citrus psyllid (ACP), the vector of huanglongbing (HLB), is part of the annual …

HLB-Positive ACP Found in San Diego County

Len Wilcox California Corner, Industry News Release, Psyllids

A citrus tree at a private residence near San Diego, California, has been found to be infected by four Asian citrus psyllids (ACP). Upon testing, the ACP were found to be carriers of the bacterium that causes citrus greening, also known as huanglongbing (HLB). The finding was announced by the California Department of Food and Agriculture’s Citrus Pest and Disease …

ACP/HLB Management Survey for California

Len Wilcox California Corner, HLB Management

Researchers from Sacramento State and the University of California, Riverside are requesting input from citrus industry members to help examine the economics of Asian citrus psyllid (ACP) and huanglongbing (HLB) management in California citrus groves. The research team is looking for growers, advisors and other citrus industry members in California to provide input on overall knowledge of ACP and HLB, …

acp

Dual Strategy to Increase ACP Control

Taylor Hillman All In For Citrus Podcast

Researchers at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) are looking to increase the efficiency of known Asian citrus psyllid (ACP) control techniques by using them together. The pairing should help control populations of the insect that spreads huanglongbing (HLB) disease. Bryony Bonning, UF/IFAS eminent scholar and entomology professor, is leading the research funded by a …

Sudden ACP Increase in California Worrisome

Len Wilcox California Corner, Psyllids

To the surprise and consternation of growers and officials, 74 Asian citrus psyllids (ACP) have been discovered in Kern County, California, since June. Local and state officials are concerned about the recent uptick in trappings and are working to find how extensively the infestation has spread. The trappings have been equally dispersed in residential and commercial citrus. Staff from the …

Task Force Sounds Alarm on ACP Finds

Len Wilcox California Corner, Psyllids

California’s ACP/HLB San Joaquin Valley Task Force reports that an increased number of Asian citrus psyllid (ACP) trap finds have occurred in the southern part of Kern County. The task force made the announcement in an open message to all citrus growers in the San Joaquin Valley. It was published on the Citrus Insider website on Oct. 16. Last month …