Soil Moisture Sensor Q&A

Tacy CalliesIrrigation

By Sandra Guzman Understanding how to obtain and interpret data from soil moisture sensor (SMS) systems is crucial for efficient irrigation management. These systems help create an efficient and informed irrigation schedule based on soil moisture readings collected from the field. Below are answers to some common questions about managing SMS systems, including how to view SMS data on a …

Psyllids

Keeping Weeds in Check

Ashley Robinsonweeds

Weeds can reduce citrus growth and production, especially in young trees. A management program should be put in place to control weeds in tree rows to minimize competition with citrus, but it is also important to control weeds in row middles to reduce soil erosion. Weed management can be achieved by utilizing a combination of control practices including but not …

Economically Sustainable Psyllid Control

Ernie NeffPsyllids

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 …

Trials to Seek Hamlin Alternative

Ernie NeffVarieties

Twenty-four citrus scions were approved by the Citrus Research and Development Foundation (CRDF) on March 23 for eventual use in multiple field trials around Florida. The purpose of the trials will be to find an early-season orange that is more tolerant of HLB disease than Hamlin, said CRDF Chief Operating Officer Rick Dantzler. Hamlin has long been the primary early-season …

Managing Pests in a CUPS System

Ashley RobinsonCUPS

Citrus under protective screen (CUPS) does a great job of safeguarding trees from the HLB-spreading Asian citrus psyllids. However, CUPS does not protect trees from all other pests. The benefits of eliminating HLB are immediate and include rapid, normal tree growth, higher yields of premium-quality fruit and less fruit drop. Since CUPS is a relatively new system, researchers are still …

BMPs: Addressing the Costs and Benefits

Ashley RobinsonBMPs

Agricultural best management practices (BMPs) are essential to protect Florida’s natural resources by mitigating agriculture’s potential negative impact on the environment. Public benefits of BMP implementation include sustained or improved water quality, reduced soil erosion and increased water conservation. Private benefits can include improved crop yield and reduced input costs from less labor, fuel and fertilizer. “Growers provide a public …

Tweaking the Sunshine for Better Citrus Health and Yield

Tacy CalliesProduction

By Christopher Vincent, Anirban Guha, Joon Hyuk Suh and Yu Wang It may surprise you to learn that citrus trees can get too much sunshine in the Sunshine State. Manipulating the light environment around a plant can have several surprising benefits. Shade can suppress the HLB cycle and enhance citrus health and yield. Overall, a mildly shaded citrus plant is …

Brazil Promotes Sustainable Citriculture

Ernie NeffBrazil

The citrus organization Fundecitrus recently announced a voluntary initiative by citrus growers and the orange juice industry in the São Paulo and West-Southwest Minas Gerais citrus belt of Brazil. The initiative is called Sustainable Citriculture. Fundecitrus President Lourival Carmo Monaco said the citrus sector has already been adopting sustainable standards to be in compliance with rigorous Brazilian commercial, labor and …

South Africa Citrus Exports to Break Record

Ernie NeffExport, International

The South Africa citrus industry will likely break all export season records with an estimated 158.7 million cartons in 2021, the Citrus Growers Association of Southern Africa (CGA) reported recently. If the estimate is reached, it would represent a third consecutive season of record export volumes, with 130 million cartons exported in 2019, followed by 146 million cartons in 2020. …

Dams Needed to Deal With Drought

Len WilcoxCalifornia Corner, Water

This year’s La Niña weather event is bringing up bad memories for California citrus growers. The industry suffered during the drought years of 2012 to 2016 and the specter of a repeated drought looms with every dry day. The California Natural Resources Agency addressed drought fears in a recent report prepared by Jeanine Jones, interstate resources manager for the California …

Making Sense of Biologicals: Crop Optimization With Seaweed

Tacy CalliesBiostimulants, MSOB

Sometimes growers must think outside the box to remain sustainable amid high input costs and devastating diseases. That is the situation facing citrus growers who are struggling to remain viable in the era of citrus greening. What if seaweed could be used to aid in the quality of citrus production? Seaweed is a biostimulant that is part of the biological …

Task Force Recommendations for ACP in Kern County

Len WilcoxCalifornia 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. …

Instant Information on Herbicides

Tacy CalliesTip of the Week, weeds

By Ramdas Kanissery Citrus growers face weed management problems throughout the year due to favorable conditions that allow the rapid growth of weeds in groves. A weed-free tree row is desired in citrus to minimize competition with the trees. This can be achieved by utilizing post-emergent herbicides that control the weeds that have already emerged. Growers have several product options …

Update on Oak Mulch Research to Fight HLB

Ashley RobinsonHLB Management, Research

Researchers have been looking for ways to help Florida citrus growers fight HLB, and spreading oak mulch around the drip line of citrus trees appears promising. Lukas Hallman, a graduate student at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Indian River Research and Education Center (IRREC) is doing research to find what is in oak trees …

update

Florida Water Policies for Agriculture

Ashley RobinsonWater

Water is the lifeblood of any farming operation. Many involved in the agriculture sector are working to do all they can to help Florida conserve water and make the most of this essential natural resource. Tatiana Borisova, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) water resource economist, gave an overview of the water-quality policies and programs in …

nutrition

Citrus Expo, Other Events Highlighted

Ernie NeffCitrus Expo, Events

Michael Rogers discusses three popular upcoming citrus grower educational meetings: Florida Citrus Growers’ Institute in April, the Florida Citrus Show in May, and Citrus Expo in August. Rogers is director of the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center in Lake Alfred. UF/IFAS is the primary planner of educational presentations at all …

Experimenting With Cover Crops in Citrus

Ashley RobinsonCover Crops, soil

Sarah Strauss, a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) soil microbiologist, shared initial results from a UF/IFAS cover crop research trial during the March 23 OJ Break virtual meeting for citrus growers. According to Strauss, use of cover crops has received increased interest by growers as a method to sustainably and economically improve soil health and …

Sneak Peek: April 2021 Citrus Industry

Tacy CalliesSneak Peek

Ask any Florida citrus grower what the top priority is, and you’ll likely get the same answer: Keeping HLB-affected trees productive and profitable. The April issue of Citrus Industry magazine provides research on production practices aimed to meet this goal. Adjusting the amount of sunlight plants receive has proven to increase citrus tree health and yield. University of Florida Institute …

acp

The Do’s and Don’ts of Spraying for Psyllids

Ashley RobinsonPsyllids

Psyllid sprays have been a point of contention for Florida citrus growers. Under endemic HLB conditions, high psyllid control costs have cut into the grower’s bottom line, which has already been hit by reduced production. So, what is the right time to spray and how can a grower remain sustainable and profitable? Lukasz Stelinski, University of Florida professor of entomology …

citrus black spot

What to Do About Citrus Black Spot

Tacy CalliesDiseases, Tip of the Week

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 …