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Below you'll see everything we could locate for your search of “root health”
Citrus meetings are vital to a grower’s plan for the upcoming season. What they learn and take back to the grove can provide major benefits heading into the upcoming harvest season. The recent Georgia Citrus Association annual meeting provided a venue for growers to share management tips with their peers. Lindy Savelle, president of the Georgia Citrus Association, compiled a …
The University of Georgia’s (UGA) Plant Molecular Diagnostic Laboratory (MDL) on the Tifton campus is a U.S. Department of Agriculture-certified lab performing huanglongbing (HLB, also known as citrus greening) testing. It offers the advanced test to commercial growers, homeowners, nurseries, Extension and research personnel and the Georgia Department of Agriculture. The molecular test per sample costs $80. Candidatus Liberibacter species associated with HLB …
Before growers in the cold-hardy citrus region plant their first trees, they need to ensure the planting site is viable for production. Muhammad Shahid, assistant professor of horticulture at the University of Florida Institute of Food and Agricultural Sciences, talked about the importance of site selection at the recent Citrus Health Forum held in Quincy, Florida. “You have to think …
By Tripti Vashisth and Mary Sutton Prolonged water deficits can negatively impact flowering, fruit growth, crop load and fruit quality. Unfortunately, HLB-affected trees are more susceptible to water deficits than healthy trees due to extensive root loss. Observing HLB-affected trees throughout the dry season showed that severely symptomatic trees consistently had lower leaf water potential than mildly symptomatic trees. This …
Jake Price, University of Georgia county Extension coordinator, recently reported on the factors that influence cold hardiness of citrus. Excerpts follow: VARIETY The most obvious factor is the variety of citrus. In order of cold hardiness, the three main classes of citrus are mandarins, sweet oranges and grapefruit. Acid types of citrus such as lemons and limes are the least …
Florida citrus growers are now well into their second application of oxytetracycline (OTC) via trunk injection to treat HLB. Per the label of both registered OTC products, after two applications, there is a one-year treatment pause. So, growers will be formulating plans on what to do during the off-season for OTC-treated trees. That was the subject of discussion during the …
By Ute Albrecht and Ozgur Batuman Follow these important tips for proper trunk injection of oxytetracycline as a citrus therapeutic. APPLICATION TIMING INJECTION TECHNIQUE ADDITIONAL ADVICE Ute Albrecht (ualbrecht@ufl.edu) and Ozgur Batuman (obatuman@ufl.edu) are associate professors at the University of Florida Institute of Food and Agricultural Sciences Southwest Florida Research and Education Center in Immokalee. Sponsored ContentTake Advantage of Rising …
The February issue of Citrus Industry magazine takes a look at efforts to combat HLB. Some strategies are already available for growers to implement in their groves, while others offer hope for long-term solutions. The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) recently launched a new Crop Transformation Center. The goal of the center is to use …
The quest for long-term solutions to HLB is well underway. Technology like CRISPR is being developed to introduce tolerance or resistance to HLB. Conventional breeding also is seeking rootstocks and varieties that can resist the disease. In the meantime, growers are reminded to utilize available tools that help trees remain productive in an HLB environment. During the August Citrus & …
By Randall P. Niedz, Guilherme Locatelli, Nick Larson, Lorenzo Rossi, Ellen Cochrane and Michelle Heck Scientists at the U.S. Department of Agriculture-Agricultural Research Service (USDA-ARS) developed an idea to bypass lab assays and test molecules directly in the field for their ability to solve HLB. As part of a USDA National Institute of Food and Agriculture (NIFA) grant (number 2020-70029-33176), …
By Davie Kadyampakeni Huanglongbing (HLB) is a citrus disease that affects the growth of the fibrous roots of citrus trees. This means that HLB-affected trees may have reduced root volume, which impacts water uptake. A greenhouse study was conducted from October 2019 to July 2021 at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and …
Positive identifications of citrus yellow vein clearing virus (CYVCV) have been found in the Hacienda Heights area of Los Angeles County. The U.S. Department of Agriculture’s Animal and Plant Health Inspection Service confirmed the identifications during the California Department of Food and Agriculture’s (CDFA) routine multi-pest survey. This is the second area in California where CYVCV has been detected. The …
Matthew Machata grew up in Polk County on the family’s citrus farm, Rolling Meadows Ranch Groves in Lake Wales, Florida. After he graduated high school, he joined the Marine Corps and served two tours in Iraq. He then attended Auburn University, where he earned a degree in aerospace engineering. At the time, his plans didn’t include farming, but that changed …
The January issue of Citrus Industry magazine rings in the new year with positive news! Find out how one Florida grower is producing up to 500 boxes per acre. Matt Machata tells how he rehabilitated his family’s groves in Lake Wales. He shares the details of his dry fertilizer and foliar application schedules. Attention to nutrition, irrigation and soil health …
The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) is reminding citrus growers that flower bud advisories are now being issued. The UF/IFAS advisories can help growers determine when to spray for HLB-spreading Asian citrus psyllids and when to stop spraying in an effort to protect pollinating bees. Tripti Vashisth, a UF/IFAS associate professor of horticultural sciences, will …
As recently as five years ago, Florida citrus growers did not routinely put individual protective covers (IPCs) on their trees as part of their grove management. Now, the mesh IPCs cover at least 1 million trees on about 17,000 acres, mostly thanks to experimentation by University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researcher Fernando Alferez. IPCs keep …
Greg Douhan with University of California Agriculture and Natural Resources (UCANR) recently wrote about phytophthora diseases in California citrus. Edited excerpts follow: There are at least four species of Phytophthora species (P. citrophthora, P. parasitica, P. syringae and P. hibernalis) associated with citrus in California. The three diseases in citrus caused by these fungal-like pathogens are phytophthora root rot, phytophthora …
By Tripti Vashisth Florida flower bud induction advisories for the upcoming season start on Nov. 15. These advisories will be published biweekly until March 30, 2024. The goals of flower bud advisories are to inform growers about the status of the tree in respect to floral bud induction and to predict bloom. This is critical information since the horticultural practices …
By Amir Rezazadeh Citrus trees face many threats that can impact fruit development and overall tree health. Pests, including aphids, mites and other insects, can damage fruit and transmit diseases. Extreme weather events, such as hailstorms or heavy rains, can cause physical harm, leading to blemishes and reduced market value. In addition, citrus growers have faced persistent challenges because of …
There’s a lot going on in Florida citrus. New trunk-injection therapies have been approved to treat HLB as groves bounce back from last year’s hurricanes. It’s a good time to get a sense of the mood of growers as we start the new Florida citrus season. If you are a grower or a consultant/caretaker (who can answer generally on behalf …
