Psyllids May Give a Year’s Warning of HLB

Ernie NeffPsyllids

psyllids

Although huanglongbing (HLB) disease was detected in Florida citrus in 2005, the HLB bacterium wasn’t found in Texas until 2011, when scientists detected it in Asian citrus psyllids (ACP). The disease wasn’t found in Texas citrus trees until 2012, suggesting that the HLB-spreading psyllids may be used for early detection of the pathogen in newly invaded areas. Factors influencing the spread … Read More

Battling the Bacteria Inside Psyllids

Tacy CalliesPsyllids

acp

Kirsten Pelz-Stelinski, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) associate professor, recently discussed her research on bacteria associated with Asian citrus psyllids. This includes endosymbiotic bacteria that live inside of psyllids as well as the liberibacter that causes citrus greening disease. Her research is looking at how these microorganisms can be targeted inside the psyllid to reduce … Read More

Cost-Effective Psyllid Control Strategies

Ernie NeffPsyllids

Lukasz Stelinski makes the case that reducing HLB-spreading Asian citrus psyllid (ACP) populations improves tree health — even when trees already have HLB. The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) entomologist offers several tips about psyllid control in a new presentation available online. Keeping ACP populations down seems to help yield, Stelinski states. His hypothesis is … Read More

Weed Control May Help Psyllid Management

Tacy CalliesCitrus, Psyllids, weeds

By Ramdas Kanissery, Justin George and Lukasz Stelinski Weed management is a crucial component in Florida’s citrus production. Recent University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) research shows that weed management may have additional pest management benefits for citrus growers. Maintaining a weed-free grove and perimeter areas may help improve management of the Asian citrus psyllid (ACP), … Read More

Advice for Psyllid/HLB Control

Ernie NeffHLB Management, Psyllids

Even with the virtually 100 percent level of HLB infection found in Florida citrus trees, reducing Asian citrus psyllids improves tree health and yield, entomologist Lukasz Stelinski says. Stelinski is a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) professor at the Citrus Research and Education Center.   Stelinski reports that trials the late UF/IFAS researcher Phil Stansly … Read More

Viruses Might Help Control Asian Citrus Psyllids

Daniel CooperCitrus Greening, Industry News Release, Psyllids, Research

scientists

(UF/IFAS) — University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers are working toward establishing a new biological method that may help growers control the insect that transmits the deadly greening disease into citrus trees. Greening is present in about 95 percent of the citrus trees in Florida, so by using a virus that may kill the insect, … Read More

The ABCs of Psyllid Management

Tacy CalliesPests, Psyllids

By Lukasz L. Stelinski and Jawwad A. Qureshi Getting rid of Asian citrus psyllids (ACP) from your grove is almost like trying to remove the sand from a beach. You can make a huge noticeable impact, but getting every last grain of sand will be impossible. What makes the prospect of ACP management so complex is achieving it in a … Read More

Viruses in the Gut of Asian Citrus Psyllid: Friends or Foes?

Tacy CalliesPsyllids, Research

By Ozgur Batuman and Amit Levy Management options for huanglongbing (HLB) are limited and rely heavily on insecticides for controlling Asian citrus psyllid (ACP) populations, even when integrated with other cultural control methods. Chemical strategies are expensive and, if not rotated, can contribute to the development of chemical resistance among ACP populations. In some cases, long-term chemical applications may have … Read More

Psyllid Management: Organic and Conventional Systems

Tacy CalliesPests, Psyllids, Research

acp

By Jawwad Qureshi Management of the Asian citrus psyllid (ACP) is needed in multiple environments, such as organic and conventional production systems and urban areas. However, the tools and approach may be different depending on the circumstances. Chemical control is the primary method used in commercial production to reduce psyllid populations, but the increased use of insecticides negatively affects the … Read More

Does Reducing Psyllids Help When HLB Is Present Everywhere?

Tacy CalliesHLB Management, Psyllids

By Freddy Ibanez, Nabil Killiny, L. Gene Albrigo and Lukasz L. Stelinski With both Asian citrus psyllids (ACP) and huanglongbing (HLB) distributed throughout Florida groves, there is no longer a need to slow the spread of the disease. So, it is logical to ask whether reducing vector numbers is still something that is worth pursuing, given the investment needed in … Read More

Futuristic Control of Psyllids

Ernie NeffPsyllids

Two University of Florida Institute of Food and Agricultural Sciences faculty discussed research that might offer future weapons in the fight against HLB-spreading Asian citrus psyllids (ACP). Both scientists made presentations at the recent Citrus Expo. Bt toxins, which come from a bacterium, have been used to control pests in corn and cotton, said Bryony Bonning. “They don’t work terribly … Read More

IPCs Effective Against Psyllids and HLB

Ernie NeffHLB Management, Pests, Psyllids

citrus

Long-time multi-county citrus Extension agent Mongi Zekri, who serves Southwest Florida counties, says individual protective covers (IPCs) work well in the fight against citrus greening, also known as HLB. “They have been very effective in controlling or managing citrus greening, because they don’t allow the citrus psyllid, which is the vector of the disease, to get to the tree,” Zekri … Read More

Psyllids, Yield and Weed Control

Ernie NeffPsyllids, weeds

Psyllids

Recent University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) research shows that HLB-spreading psyllids can feed on weeds, and that good weed control can increase fruit yield. The research results were presented by UF/IFAS weed scientist Ramdas Kanissery, who works at the Southwest Florida Research and Education Center (SWFREC) in Immokalee. Kanissery said his work on psyllids feeding … Read More

Studying Citrus Greening with an Integrated Approach

Daniel CooperCitrus Greening, Diseases, HLB Management, Industry News Release, Psyllids, Research

citrus greening

While citrus growers continue to look for best management approaches to deal with the deadly greening disease, scientists will take an integrated look at how to protect young trees by using existing tools growers can use. Five scientists from the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) will compare insect management tools, including insect-proof netting. Researchers also … Read More

Precision Agriculture Technologies in Citrus

Tacy CalliesPests, Psyllids, Research, Technology

By Yiannis Ampatzidis Citrus growers face issues from an increasing number of pests and diseases. Rapid and accurate tools for early pest and disease detection are needed to improve precision and timely management. Almost all agrochemicals (e.g., pesticides) applied in specialty crop production are made uniformly with conventional spraying equipment, despite the fact that pathogen distribution is typically patchy. Uniform … Read More

Psyllid Control and Endemic HLB

Ernie NeffHLB Management, Pests, Psyllids

acp

In the early days of HLB in Florida, virtually all researchers and growers agreed that nothing was more important than controlling HLB-spreading Asian citrus psyllids. But once HLB had spread to every grove (become endemic), many growers began questioning whether continued psyllid control was necessary. University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) entomologist Lukasz Stelinski tackled that … Read More

Artificial Intelligence Could Help Citrus Growers Detect Psyllids

Daniel CooperCitrus Greening, HLB Management, Industry News Release, Psyllids, Research, Technology

Kaolin Clay

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 … Read More

Kaolin Impact on Psyllids and HLB

Ernie NeffHLB Management, Psyllids

psyllids

Researchers found use of kaolin particle film on trees reduced populations of HLB-spreading psyllids and delayed HLB infection. University of Florida Institute of Food and Agricultural Sciences researcher Christopher Vincent and graduate student Juanpablo Salvatierra Miranda report on their findings. Vincent says both white kaolin and red kaolin applications “had very low psyllid numbers” compared to a foliar insecticide treatment … Read More

Grove Border Control for Psyllids

Ernie NeffPsyllids

invasive

Controlling HLB-spreading Asian citrus psyllids along grove borders can be part of a cost-efficient psyllid control program, says University of Florida Institute of Food and Agricultural Sciences entomologist Lukasz Stelinski. “Psyllids are found in borders in much greater frequencies than any other place within the grove,” Stelinski says. “This is a place that they congregate … Anything that helps protect … Read More

Researching Scouting Strategies for ACP

Daniel CooperCitrus, Psyllids

acp

Several research projects continue at University of California Riverside to evaluate strategies for better detection of Asian citrus psyllid (ACP). Monique Rivera, assistant cooperative Extension specialist, is looking into something referred to as the ‘edge effect’ and how it pertains to ACP control. “The ‘edge effect’ is basically an ecological term that we’re using in the context of Asian citrus … Read More