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Below you'll see everything we could locate for your search of “CREC”
“We’ve come a long way in the time that we’ve had HLB here in Florida,” says Michael Rogers. The director of the University of Florida Institute of Food and Agricultural Sciences’ (UF/IFAS) Citrus Research and Education Center says early HLB research “covered a wide range of topics.” Now, however, “We’re really narrowing down things that are of use to growers …
University of Florida multi-county citrus Extension agent Chris Oswalt discussed fungal disease management in the April Central Florida citrus Extension newsletter. Here is a summary: In Florida, fruit fungal diseases that are oftentimes problematic in the early spring are melanose, scab and alternaria brown spot, along with citrus canker. In the summer period, greasy spot is more of a problem, …
By Ramdas Kanissery Adjuvants (derived from Latin, adiuvare: to aid or help) are materials added into an herbicide spray solution that improve handling, performance and crop safety. To be effective, an herbicide must overcome certain environmental and biological obstacles before entering and acting in the weeds. For example, environmental conditions like hot and dry weather will result in a thicker …
Nematologist Larry Duncan discussed efforts to control the root pests sting nematode and Diaprepes root weevil in his presentation during the virtual April 6 Florida Citrus Growers’ Institute. Duncan works at the University of Florida Institute of Food and Agricultural Sciences’ (UF/IFAS) Citrus Research and Education Center. The sting nematode and Diaprepes are especially concerning in the age of HLB, …
Spraying for the HLB-spreading Asian citrus psyllid (ACP) is essential for HLB control even when virtually all trees are already infected with the disease. Entomologist Lukasz Stelinski made that declaration early in his virtual presentation at the April 6 Florida Citrus Growers’ Institute. Stelinski is an entomologist at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus …
By Evan Johnson The Florida citrus spring leaf flush is hardening off, which means the first root flush of the year is beginning. With the spring root flush comes thoughts of phytophthora foot rot. Spring roots are at particular risk in groves that had high phytophthora pressure last fall because many of the resting spores will start activating with the …
The annual Florida Citrus Growers’ Institute, hosted by University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Extension, will be held on April 6. The event will be delivered via a Zoom webinar from 8:30 a.m. to 12:00 p.m. “We hope to reach a broad audience despite the limits imposed on us because of the COVID-19 pandemic,” said Chris …
By Megan Dewdney Citrus black spot is one of the newer diseases to worry Florida citrus growers. The fungal disease was first detected in Southwest Florida in 2010. The vast majority of finds have been in the southwestern citrus-producing counties of Collier, Hardee, Lee, Charlotte and Glades, but the disease has slowly moved northward. Black spot is still considered a …
March’s All In For Citrus podcast brings news of in-person events, details on controlling the vector of HLB disease, as well as potential changes to nutrient and water management recommendations. Citrus Research and Education Center Director Michael Rogers begins the episode discussing several upcoming events for growers. On April 6, the Florida Citrus Growers’ Institute will return as a virtual …
Lebbeck mealybug (Nipaecoccus viridis) was first identified in Florida citrus in 2019 in Highlands County. It has now been documented in commercial citrus groves in 11 counties and in dooryard citrus plantings in two counties. While lebbeck mealybug can feed on most of the above-ground parts of a citrus tree, it is most damaging in the canopy, where it feeds …
By Lauren Diepenbrock While scale and mealybug pests commonly found in citrus have historically been controlled by predators and parasites, management advice for this group of insects is often requested. There are likely several underlying factors to these insects becoming more frequently encountered. This includes changes in insecticide management practices, changes in nutritional management, and increased scouting due to the …
Michael Rogers with the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) discussed plans to hire a new citrus horticulturist, as well as grower meetings set for March. Rogers is director of the UF/IFAS Citrus Research and Education Center (CREC) in Lake Alfred. The horticulturist to be hired will work with UF/IFAS plant breeders on the field development …
Megan Dewdney Since tangerines and grapefruit they are eaten fresh, a blemish-free peel is highly desired. Two diseases that frequently mar the peels of tangerines, and occasionally grapefruit, are Alternaria brown spot (ABS) and citrus scab. Both diseases cause symptoms on leaves and fruit. ALTERNARIA BROWN SPOTThe early foliar symptoms of ABS are small yellow flecks that quickly become larger …
As Florida growers prepare for the spring bloom, it is time to think about a pest that thrives on citrus flowers: thrips. Most notably, flower thrips are known to cause damage to developing flowers in sweet orange. Feeding damage can range from negligible to causing abortion of the flower or developing fruitlet. This pest is particularly challenging because it migrates …
By Megan Dewdney There were many challenges in 2020, but fortunately the Florida season for foliar citrus diseases was relatively normal. Little to no postbloom fruit drop (PFD) was reported during the 2020 bloom because of a sudden dry spell as the flowers opened. As spring 2021 approaches, the forecast is for a La Niña weather pattern with slightly warmer …
By Megan Dewdney, Tripti Vashisth and Lauren Diepenbrock Dead wood has long been challenging for fresh citrus fruit production. Spores in twigs can form which cause blemishing diseases that downgrade fruit for lower profits. More recently, it has come to light that there are horticultural and entomological reasons to remove this wood as well. Many growers are familiar with melanose, …
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 …
By Ruth Borger It is time for a new year, and many of us cannot see 2020 end fast enough. It is almost time for 2021, and there is a lot to be hopeful for. New vaccines to fight the coronavirus hold great potential for beating the pandemic. U.S. citrus sales so far this season continue to show strong performance. …
By Nian Wang, Fred Gmitter and Manjul Dutt Nearly all commercially important citrus types — oranges, grapefruits etc. — have originated by mutations that have accumulated over several hundreds to thousands of years, from what once was an original, individual sweet orange tree and a single grapefruit tree. The many different cultivars that we know today are descended from those …
By Yiannis Ampatzidis and Tara Wade Traditional sensing technologies in citrus production for pest and disease detection and field phenotyping rely on manual sampling, which is time consuming and labor intensive. Since availability of personnel trained for field scouting is a major problem, small unmanned aerial vehicles (UAVs) equipped with various sensors and artificial intelligence (AI) can simplify the surveying …
