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Below you'll find a list of all posts that have been categorized as “Pests”
Phyllocoptruta oleivora, known as the false rust mite in Brazil, is one of the country’s main citrus pests, Fundecitrus reported. In the United States, the pest is known as citrus rust mite or silver mite. It affects all varieties of citrus. Infestation in Brazil’s orchards occurs throughout the year but reaches the highest populations between December and June. That’s a …
By Maegan Beatty An invasive butterfly that seriously damages citrus trees has been spotted in Florida. The lime swallowtail (Papilio demoleus) is an invasive species from Asia that has harmed citrus trees in the Caribbean for almost 20 years. The butterfly has a wingspan of nearly 4 inches with black and white marks across the wings and a red-orange dot …
By Larry Duncan and Fernando Alferez Newly planted citrus trees are far less tolerant of pests and diseases than when mature. Sting nematode (Belonolaimus longicaudatus) was not considered a serious economic threat to Florida citrus until successive hard freezes in the 1980s caused widespread replanting of groves. Patches of stunted, declining trees caused by the irregular distribution of sting nematodes …
Editor’s note: The comment period has been extended to give stakeholders additional time to submit comments. The draft pest risk assessment will be available for review and comment until March 14, 2023. The U.S. Department of Agriculture Animal and Plant Health Inspection Service (USDA APHIS) has drafted a pest risk assessment for the importation of fresh oranges and tangerines from Egypt into …
By Lauren Diepenbrock Pest management is an ongoing effort in Florida citrus. Taking advantage of pest life cycles has been shown to be an effective tool for reducing populations of target pests. For many citrus growers, managing impacts of the Asian citrus psyllid (ACP), the vector of huanglongbing (HLB), is part of the annual management plan. As we enter the …
Plant Diagnostic Center Director Raj Singh at the Louisiana State University Agricultural Center (LSA AgCenter) recently addressed two stresses that impact yields in Louisiana citrus — internal dry rot and puffy fruit. INTERNAL DRY ROTMature fruit affected by internal dry rot may look healthy on the outside, but peeling the fruit reveals dry, discolored flesh. This internal dry rot is …
Federal and state agriculture officials on Nov. 14 removed the Mexican fruit fly (Mexfly) quarantine in Brownsville, Cameron County, Texas. The quarantine was removed after three generations elapsed with no additional detections in the area. The action was taken by the U.S. Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS) and the Texas Department of Agriculture (TDA). …
By Emilie Demard Mites are pests of economic importance in traditional groves and citrus under protective screen (CUPS). Results from a two-year survey in CUPS at the Indian River Research and Education Center (IRREC) in Fort Pierce, Florida, showed that the citrus rust mite and the citrus red mite populations can reach high levels resulting in leaf and fruit damage. …
Federal and state agriculture officials on Sept. 21 removed the Mexican fruit fly (Mexfly) quarantine in Hargill, Willacy County, Texas, after three generations elapsed with no additional detections in this area. The action was taken by the U.S. Department of Agriculture’s Animal and Plant Health Inspection Service (APHIS) and the Texas Department of Agriculture (TDA). This action releases the final …
By Sandra M. Guzmán, Larry Duncan, John Santiago and Lorenzo Rossi The implementation of pest management technologies might have an impact on other management areas in the grove. Landscape fabric groundcovers, for example, have been used for pest management in citrus production. Groundcovers also recently have been used to promote the homogeneous availability of water for uptake by roots, better …
One Mexican fruit fly (Mexfly) quarantine in Texas was recently removed, and portions of another Mexfly quarantine were released. Federal and state officials on Oct. 13 removed the Mexfly quarantine in Harlingen, Cameron County, after three generations elapsed with no additional detections in the area. This action releases the final 108.17 square miles of the Harlingen quarantine, which contained 699.3 …
Entomopathogenic fungi have recently been seen attacking citrus whitefly and cloudywinged whitefly nymphs in North Florida citrus groves. Muhammad Shahid, Mujahid Hussain and Danielle Sprague, all with the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS), wrote about the “friendly” fungi in the October UF/IFAS Cold Hardy Citrus Connection newsletter. Shahid is a horticulturalist and Hussain is a …
Federal and state agriculture officials removed the Oriental fruit fly (OFF) quarantine in the North Hills area of Los Angeles County, California. The action was taken by the U.S. Department of Agriculture’s (USDA) Animal and Plant Health Inspection Service (APHIS) and the California Department of Food and Agriculture (CDFA). On July 1, APHIS and CDFA established an OFF quarantine in …
By Homan Regmi, Larry Duncan and Johan Desaeger Two field trials were initiated in a Polk County, Florida, commercial grove of 15-month-old Valencia on Kuharske trees in 2019 to measure the effectiveness of integrated pest management (IPM) tactics for managing sting nematodes (Belonolaimus longicaudatus). Six chemical nematicides, many newly released, were compared in one trial. In the second, perennial peanut …
University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) multi-county citrus Extension agent Ajia Paolillo summarized suggestions for controlling pest pressure after Hurricane Ian in a recent Extension newsletter. Along with horticultural practices and disease control, growers should be monitoring for pests in their groves post-hurricane. UF/IFAS entomologist Lauren Diepenbrock provided some suggested practices for keeping pest pressure as …
The Florida Department of Agriculture and Consumer Services (FDACS) announced on Sept. 23 that the oriental fruit fly (Bactrocera dorsalis) has been eradicated from Pinellas County. In June, FDACS Division of Plant Industry positively identified oriental fruit flies detected during routine trapping. Additional flies were discovered during expanded trapping activities. A quarantine was established in the St. Petersburg area that …
Federal and state agriculture authorities on Sept. 16 established an Oriental fruit fly (Bactrocera dorsalis) quarantine in the Fountain Valley area of Orange County, California. The action was taken by the U.S. Department of Agriculture’s Animal and Plant Health Inspection Service (APHIS) and the California Department of Food and Agriculture (CDFA). This action is in response to the confirmed detections …
Federal and state authorities on Aug. 10 removed the Mexican fruit fly (Mexfly) quarantine area in Weslaco, Hidalgo County, Texas. This area was a portion of the Harlingen-Lyford-Weslaco quarantine. The action was taken by the U.S. Department of Agriculture’s Animal and Plant Health Inspection Service (APHIS) and the Texas Department of Agriculture (TDA). On April 8, APHIS and TDA established …
University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) faculty recommend actions citrus growers can take to prevent further damage to root systems and future fruit drop following Hurricane Ian. DEAL WITH PHYTOPHTHORAIf standing water has occurred in groves with phytophthora problems, growers should evaluate for root damage and treat accordingly. Floodwaters resulting from heavy rains can severely impact …
By Jawwad A. Qureshi and Salman Al-Shami The citrus under protective screen (CUPS, Figure 1) system is designed so citrus can grow inside screened enclosures to protect it from huanglongbing (HLB) and the Asian citrus psyllid (ACP, Diaphorina citri). ACP is the primary vector of the pathogen responsible for causing HLB, known as citrus greening disease. This vector-pathogen combination is …
