Making Sense of Biologicals: Benefits of Biostimulants

Tacy CalliesBiostimulants, MSOB

Fertilizers help crops reach maximum yields while fungicides prevent diseases. But what if there were products available that could further enhance the fruiting qualities all growers hope to achieve every season? IMPROVED FRUIT PRODUCTIONIf growers can increase the level of flowering hormones in their crops, this will allow for a better fertilization process that will generate improved fruit set and …

Florida citrus growers

HLB Spending Summarized

Ernie NeffCRDF

Citrus Research and Development Foundation (CRDF) Chief Operating Officer Rick Dantzler on Feb. 23 detailed CRDF spending on efforts to solve HLB. According to Dantzler, the Florida-based organization spent $140.7 million between its formation in 2009 and 2020. The vast majority of CRDF’s focus has been on HLB. Dantzler’s report came moments after University of Florida (UF) Institute of Food …

Shade for HLB Trees Means More Yield

Ashley RobinsonAll In For Citrus Podcast

Like all photosynthetic plants, citrus trees need light to produce food. But in Florida, groves located in full sun sometimes receive more light energy than they can make use of, causing photosynthesis to slow down. When this happens, the trees invest their energy in protecting their leaves from sun damage, meaning the trees have less food available for fruit protection. …

acp

ACP Monitoring Efforts in Georgia

Tacy CalliesGeorgia

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 …

The Goals of Pest Management

Josh McGillCEU

By Ajia Paolillo Editor’s note: This article grants one continuing education unit (CEU) in the Core category toward the renewal of a Florida Department of Agriculture and Consumer Services restricted-use pesticide license when the accompanying test is submitted and approved. Integrated pest management (IPM) uses a combination of methods to keep pest populations at an acceptable level, which are economical …

Plan Your Insect Management for 2021

Tacy CalliesPests, Tip of the Week

By L.M. Diepenbrock Insect and mite management is a year-round challenge in Florida citrus. With the warm climate, pests are at the ready as soon as plant resources are available to them. With knowledge of insect and mite biology in relation to tree phenology, plans can be developed to protect fruit and maintain productive citrus trees. Populations of many of …

Growers Tour Indian River CUPS Houses

Tacy CalliesCUPS

Citrus growers from several of Florida’s production regions joined researchers recently for a look inside 14-foot high screenhouses that protect trees from HLB-spreading Asian citrus psyllids. The CUPS (Citrus Under Protective Screens) Field Day took place at the University of Florida Institute of Food and Agricultural Sciences Indian River Research and Education Center (UF/IFAS IRREC) in Fort Pierce. Johnny Ferrarezi, …

California Growers Reminded to Stay Alert

Len WilcoxCalifornia Corner, HLB Management

Jim Gorden, chair of the Citrus Pest and Disease Prevention Committee (CPDPC), is greatly concerned about the increase in sporadic Asian citrus psyllid (ACP) detections across California. Gorden sent an open letter to all citrus growers asking them to increase their vigilance against the pest and the risk of citrus greening, known as HLB disease. He said that “While the …

pests

Traditional and Alternative Leafminer Control Methods

Tacy CalliesPests

By Lukasz Stelinski The citrus leafminer (CLM) remains a major pest of citrus throughout Florida. The adults are small, white/silver-colored moths about half the size of a typical mosquito (Figure 1). Adults are difficult to spot due to their small size and because they are active only in the evening (dusk) and early pre-dawn hours. CLM adults can be monitored …

acp

Time for ACP Dormant Season Sprays

Tacy CalliesHLB 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 WilcoxCalifornia 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 WilcoxCalifornia 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, …

long-horned beetle

Growers’ Input on Pests Needed

Ernie NeffPests

Entomologist Lauren Diepenbrock is seeking Florida citrus growers’ help in determining information gaps and future directions for her research on pests. To get that help, she’s asking growers to participate in a survey, which is available here. Diepenbrock, a University of Florida Institute of Food and Agricultural Sciences researcher, would like to have growers take the survey by March 31, …

acp

Dual Strategy to Increase ACP Control

Taylor HillmanAll 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 …

Flower Bud Advisories Have Resumed

Tacy CalliesIndustry News Release

The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) has resumed providing growers with regular flower bud advisories now that the critical time for citrus grove management has begun this season. Tripti Vashisth, UF/IFAS assistant professor, restarted the advisories Nov. 23 and will continue providing them every other week through the spring. The advisories provide critical information about …

citrus

Scout IPCs for Pests

Tacy CalliesPests, Tip of the Week

By Jawwad Qureshi Young citrus trees produce shoots with feather-stage leaves more frequently, making them highly attractive to the Asian citrus psyllid (ACP). This pest requires young shoots with feather-stage leaves to develop and reproduce. ACP is the pathogen’s primary vector responsible for causing huanglongbing (HLB) disease. Plant infection with HLB at an early age makes it challenging to bring …

Five Years of Fresh Fruit Production in CUPS

Tacy CalliesCUPS

By Arnold Schumann, Laura Waldo, Napoleon Mariner and Timothy Ebert According to the U.S. Department of Agriculture (USDA), Florida grapefruit production for the 2019–20 season was only 12 percent of the production recorded in 2003–04, prior to the arrival of huanglongbing (HLB) disease in the state. A major goal of the University of Florida Institute of Food and Agricultural Sciences …

Sudden ACP Increase in California Worrisome

Len WilcoxCalifornia 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 …

florida citrus

Growers Want Aldicarb Again

Ernie NeffPesticides

Citrus growers told Environmental Protection Agency (EPA) officials why they want the insecticide aldicarb registered for use in Florida citrus, and discussed their problems with citrus greening. EPA cancelled the use of Temik, the Bayer brand name for aldicarb, on citrus at the end of 2011. Mike Aerts of the Florida Fruit & Vegetable Association (FFVA) said the Oct. 22 …

UF/IFAS Gets $4.5M to Continue HLB Fight

Ernie NeffHLB Management

Three teams of scientists from the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) recently received nearly $4.5 million in U.S. Department of Agriculture (USDA) funds to study new ways to manage HLB. The funding is part of the $45 million in grants the USDA National Institute of Food and Agriculture’s Emergency Citrus Disease Research and Extension Program …