rust mites

Citrus Rust Mites in Georgia

Daniel CooperGeorgia, Pests

By Jake Price There are two types of rust mites, the citrus rust mite (CRM) and the pink citrus rust mite (PCRM). The CRM is one of the biggest citrus pests in Georgia on fresh fruit. I don’t know that I have seen the PCRM in Georgia, but it is probably here. Every year, CRM is a problem at the …

Tip of the Week

Solid Crop Needs to Survive Rust Mites

Josh McGillPests

Citrus growers in North Florida and South Georgia are expected to start harvesting in early November. While the crop still looks promising, producers need to keep an eye on rust mites, says grower Kim Jones. “Rust mites can still be a real danger at this point. With fresh fruit, we’ve got to have a pretty piece of fruit. That rust …

Now Is the Time to Start Scouting for Rust Mites

Josh McGillPests, Tip of the Week

By Xavier Martini Rust mites are recurrent pests in Florida that pose problems mostly in fresh citrus production. While severe infestations can lead to fruit drop, leaf injury and abscission, rust mites cause aesthetic damage in the form of sharkskin or bronzing on the skin of fresh fruit (Figure 1A). Fresh fruit requires clean and undamaged skin, and any abrasions …

mites

Management of Mites for Fresh Market Citrus

Daniel CooperCold Hardy, Pests

University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Associate Professor Xavier Martini recently wrote an article In the Cold Hardy Citrus Connection about management of mites for fresh market citrus. Martini is an entomologist at the North Florida Research and Education Center. An edited version of his article follows.  Two types of mites mainly affect citrus production in …

Managing Pest and Predatory Mites in CUPS

Josh McGillCUPS, Pests, Tip of the Week

By Emilie Demard Mites are pests of economic importance in traditional groves and citrus under protective screen (CUPS). Results from a two-year survey in CUPS at the Indian River Research and Education Center (IRREC) in Fort Pierce, Florida, showed that the citrus rust mite and the citrus red mite populations can reach high levels resulting in leaf and fruit damage. …

Controlling Mites in CUPS

Josh McGillCitrus, Pests

Emilie Demard is working to control mites and other pests that damage fresh grapefruit growing as citrus under protective screens (CUPS) at the Indian River Research and Education Center in Fort Pierce.  “I look at biological control — in this case, predatory mites controlling pest mites to minimize the need for agrochemicals,” said Demard, a Ph.D. entomology graduate with the …

Spider Mites in Florida Citrus

Ernie NeffPests

By Lourdes Perez Cordero If you are a citrus grower in Central Florida, more than likely you have encountered spider mites. These are a common pest of commercial citrus in the state and their characteristic thin webs make them easy to spot in trees. Spider mites become more abundant between March and June, when the weather conditions are dry, and …

Predatory Mites in Citrus Under Protective Screen

Tacy CalliesPests

By Emilie Demard and Jawwad Qureshi Managing the Asian citrus psyllid (ACP), a vector of huanglongbing (HLB), is critical for reducing disease incidence and improving tree health. Growing citrus under screened structures, referred to as citrus under protective screen (CUPS), protects trees from ACP and HLB. CUPS provides an opportunity to produce premium-quality fresh fruit by preventing psyllids and HLB …

Managing Mites in Florida Citrus

Tacy CalliesPests

By Lukasz L. Stelinski, Jawwad A. Qureshi and Philip A. Stansly Florida citrus is host to four main groups of mites categorized by differences in lineage and morphology. However, only rust mites, spider mites and broad mites historically cause economic damage to commercially grown citrus in the state. The fourth group, referred to as false spider mites, are vectors elsewhere …

CUPS

Pest Avoidance and Monitoring in CUPS

Daniel CooperCUPS, Pests, Tip of the Week

By Jawwad A. Qureshi Citrus under protective screen (CUPS) is a novel system for large-scale citrus production in screen houses covered with a tightly woven mesh screen on all four sides and the roof. The primary goal of this shift from a traditional open orchard to a CUPS system is to protect citrus crops from huanglongbing (HLB) disease, which is …

pest

Pest Management Challenges in CUPS

Daniel CooperCUPS, Pests

By Lauren Diepenbrock Citrus under protective screen (CUPS) has provided growers with a profitable method for producing fresh fruit in Florida. Growers who have implemented this system have noted quality fruit production and reduced inputs. However, when changes are imposed to the production environment, they are also imposed to the invertebrate pest complex, which can be either beneficial or detrimental …

pest

CUPS: Pest Monitoring and Management

Daniel CooperCUPS, Pests, Tip of the Week

By Jawwad A. Qureshi Several insect pests and mites colonize citrus crops in traditional open orchards. Most pests are localized and are suppressed by predators, parasitoids and entomopathogens to levels that are not economically damaging to the crops. The Asian citrus psyllid (ACP) is the primary vector of huanglongbing (HLB) disease. Despite biological and chemical control of ACP, growing a …

brassinosteroids

Brassinosteroids Improve HLB-Affected Tree Health and Fruit Quality

Daniel CooperPGRs

By Fernando Alferez, Divya Aryal and Saoussen Ben Abdallah In the last few years, the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) citrus horticulture team at the Southwest Florida Research and Education Center (SWFREC) in Immokalee has performed several research trials in commercial farms and at the experimental farm at the SWFREC to elucidate the effect of …

pest populations

Scout to Stay Ahead of Pest Populations

Daniel CooperPests

It is much better for Florida citrus growers to be proactive than reactive when managing pest populations. Scouting and monitoring citrus groves is crucial for growers who hope to thwart off impacts from insects like the Asian citrus psyllid (ACP). If growers are not successful, they will be behind the eight ball in minimizing the impact of these annual pests. …

juice market

Cold-Hardy Growers Eyeing Juice Market

Daniel CooperCold Hardy

A low volume of fruit in the cold-hardy citrus region is being produced for the juice market. With the current market prices for juiced citrus, that number could increase in the near future. This topic was discussed during the recent Georgia Citrus Association annual meeting in Tifton. “With the prices today, there is a future for it,” said grower Kim …

pest management

Plan Your 2025 Pest Management

Daniel CooperPest Management, Pests, Tip of the Week

By Lauren Diepenbrock Pest 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 invertebrate biology in relation to tree phenology, growers can develop plans to protect fruit and maintain productive citrus trees. HIGHLY PROBLEMATIC PESTS Populations of some highly problematic …

harvest

Cold-Hardy Citrus Concerns Prior to Harvest

Daniel CooperCold Hardy, Harvesting

Cold-hardy citrus growers are on the cusp of starting another harvest season. Management options need to continue up until the first crops are plucked from the trees, according to Certified Crop Adviser Bill Barber with Ag Services LLC. Barber spoke at a citrus workshop on Sept. 24 at the University of Florida Institute of Food and Agricultural Sciences Extension office …

lebbeck mealybug

New Knowledge on Lebbeck Mealybug Can Aid Control

Daniel CooperPests

Lebbeck mealybug populations are not tied to flush production, entomologist Lauren Diepenbrock reported recently. The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) assistant professor also noted: Diepenbrock sampled lebbeck mealybug populations in commercial citrus groves in Central Florida. Analysis of the seasonal trapping data provided easily observable trends. Based on these trends, she offers the following initial …

Recovery Will Require a Multipronged Management Program

Josh McGillHLB Management, hurricane, Production

By Michael Rogers The 2022–23 Florida harvest season is now behind us. Yield losses magnified by the weather events this past season position the next couple of years as “make or break” for many growers. The lingering effects of hurricane Ian will impact next season’s crop as trees continue to recover and balance out canopy regrowth with fruit production. Despite …

cups

Long-Term Research Proves CUPS Performance

Josh McGillCUPS, Research

Arnold Schumann, a professor of soil fertility and water quality with the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS), led the effort to study the effectiveness of citrus under protective screen (CUPS) in protecting trees from HLB. The work resulted in growers having confidence in the practice. Today, Florida CUPS plantings are closing in on 1,000 commercial …