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Below you'll see everything we could locate for your search of “biological control”
By Ramdas Kanissery, Rachel Fenn, Biwek Gairhe and Davie Kadyampakeni Chemical weed control, using herbicides to manage weeds, is an important production practice in citrus groves. Herbicides applied in groves can end up in the soils from direct spray hits, indirect or non-target spray movement (also known as drifts) or release from the dead weeds and vegetation. In soil, the …
By Ronald G. Doetch I am a lifelong farmer/agronomist and, at the age of 73, have worked with many different crops through the many changes in agriculture challenges and production practices. I moved to Florida four years ago to grow a few oranges and have a firsthand look and understanding of the relationship of soil health to tree decline and …
Researcher. Scholar. Change agent. Nian Wang, a professor at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS), has been recognized for all of these roles with an award from the American Phytopathological Society (APS) at its 2020 annual meeting. Wang received the Ruth Allen award, which honors people who have made an outstanding, innovative research contribution that has …
Thanks to recent advances in metabolic modeling, scientists are closer to gaining the upper hand on citrus greening (also known as huanglongbing or HLB), a disease that has wiped out citrus orchards across the globe. New models of the bacterium linked to the disease reveal control methods that were previously unavailable. Metabolic models of organisms are like road maps of …
A book about the Asian citrus psyllid (ACP) and huanglongbing (HLB), edited by Jawwad Qureshi and the late Phil Stansly, was recently published by the Center for Agriculture and Biosciences International (CABI). Qureshi is an entomologist with the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS); Stansly was also a UF/IFAS entomologist. The book is Asian Citrus Psyllid: …
For the fourth consecutive year, Certis USA has donated $20,000 to the Citrus Research and Development Foundation (CRDF) to help fund the non-profit’s research aimed at finding a cure for huanglongbing (HLB; citrus greening). The company’s successful “Certis for Citrus” program utilizes sales from their top citrus products to annually support CRDF’s mission. The donation came during CRDF’s board meeting …
Researchers with several organizations are in the early stages of investigating the use of neuropeptides found in Asian citrus psyllids as the source for biocontrols for HLB disease. The researchers are with the Boyce Thompson Institute (BTI) at Cornell University, the U.S. Department of Agriculture Agricultural Research Service (USDA-ARS) and the University of Washington. The research team is led by …
University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers have discovered another possible solution to the plague of citrus greening that is impacting Florida’s citrus groves. This new information adds to the growing portfolio of knowledge that UF/IFAS scientists are amassing to fight the disease. Led by UF/IFAS microbiology and cell science professor Claudio Gonzalez, a team of plant …
By Laura Waldo and Arnold Schumann It has been the accepted belief for many years that citrus varieties and rootstocks do not develop root hairs. However, research has shown that root hair growth can be stimulated when soil phosphorus (P) concentrations are extremely low. It is possible that in Florida, citrus roots could fail to produce root hairs due to …
Michelle Danyluk describes training that was provided Feb. 11 to help fresh citrus growers comply with the federal Produce Safety Rule. Danyluk is a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) professor and Extension specialist at the Citrus Research and Education Center (CREC). She and several other UF/IFAS faculty conducted the training at the CREC. The Produce …
Fresh fruit has generally grown well in a citrus under protective screen (CUPS) facility at the Citrus Research and Education Center, but there has been an issue with small fruit size. Laura Waldo, a senior biological scientist who works with lead CUPS researcher Arnold Schumann, discusses the problem and likely solutions. Waldo says causes of the smaller fruit size have …
Information about complying with the federal Food Safety Modernization Act’s Produce Safety Rule was presented at the recent annual Citrus Packinghouse Day. Scott McClure, environmental manager for the Florida Department of Agriculture and Consumer Services Division of Fruit & Vegetables (FDACS/DFV), was one of the presenters. He summarizes his talk. McClure says the rule applies to “anyone that handles, grows, …
Precision agriculture engineer Yiannis Ampatzidis sees a day when citrus farmers use artificial intelligence (AI) to detect the pin-sized insects that can infect the fruit’s trees with the deadly greening disease. That day could come in the near future, because Ampatzidis and his research team are starting to perfect a system to detect the potentially deadly Asian citrus psyllid. Citrus …
By Arnold Schumann, Laura Waldo, Tripti Vashisth, Alan Wright and Kelly Morgan Huanglongbing (HLB) disease severely impacts the nutrient status of citrus trees, particularly by stunting the feeder roots and causing measurable deficiencies of nutrients in the roots and canopies. Visible symptoms of nutrient deficiencies on citrus foliage are characteristic but not diagnostic of HLB disease. Recent HLB research efforts …
Imagine using a robotic arm to grip and puncture the trunk of a citrus tree to deliver chemicals into the vascular parts of the plant, reducing its susceptibility to the citrus greening disease. Ozgur Batuman, an assistant professor of plant pathology at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS), leads a team of researchers trying to …
By Len Wilcox California agriculture has long kept a watchful eye on the spread of HLB (huanglongbing or citrus greening disease). It’s a firestorm on the horizon, and the devastation the disease has wrought in Florida and other parts of the world has the full attention of California citrus growers. Working closely with industry leaders and grower groups, federal, state …
By Sarah Strauss and Ute Albrecht There is increasing discussion and interest in soil health from both growers and researchers. Soil health is generally synonymous with soil quality. It can impact not just sustainability, but also improve water-holding capacity, nutrient availability, yield and overall grove productivity. In citrus, soil health is particularly important because of the reduction of root mass …
A new University of Florida-developed forecasting system could help citrus growers control postbloom fruit drop this winter, despite the predicted El Niño weather pattern that’s expected to bring more rain and moderate temperatures. With an El Niño, forecasters expect above-average rain this winter and early spring. Increased rain improves the chances of fungal spores splashing from flower to flower in …
A Texas A&M AgriLife Research scientist at Weslaco will lead a consortium of researchers in major citrus-producing regions to conduct high-throughput screening in discovering antimicrobials that could prevent citrus greening. Citrus greening, also known as huanglongbing (HLB) disease, has devastated citrus fruit crops in Florida and has made its way to Texas and California. The research grant of approximately $1.2 …
By Len Wilcox University of California Davis (UC Davis) researchers have identified the sex pheromone of the Asian citrus psyllid (ACP), a discovery which will lead to better methods of controlling the pest. The ACP is a major threat to citrus around the world. The psyllid is a tiny insect with the potential to wreak havoc as it spreads the …
