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Below you'll find a list of all posts that have been categorized as “Pests”
The sting nematode is the most serious nematode problem in young citrus groves, nematologist Larry Duncan reported at the Florida Citrus Growers’ Institute in April. According to Duncan, long before HLB, the sting nematode was widely encountered in groves on Florida’s Central Ridge and in Polk County. The University of Florida Institute of Food and Agricultural Sciences professor said tree …
Entomologist Kirsten Pelz-Stelinski recently shared findings from trials on the use of foliar-applied and trunk-injected antibiotics for controlling HLB and the Asian citrus psyllids (ACP) that spread the disease. Pelz-Stelinski is associate center director at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center (CREC) in Lake Alfred. In a May 17 presentation …
By Lauren Diepenbrock Snail management is becoming a more common discussion in Florida citrus with the arrival of a newer species (Bulimulus bonariensis, previously referred to as Bulimulus sporadicus, Figure 1) in the Southeast. This snail is a new challenge for citrus growers. With funding from the Citrus Research and Development Foundation, the University of Florida Institute of Food and …
In California’s Central Valley, citrus thrips are one of the most concerning pests for growers. Citrus thrips feed on young fruit, which results in scarring damage. “Those cuts are then downgraded in the packinghouse, costing our growers money, which is why managing thrips is so important,” said Sandipa Gautam, University of California Cooperative Extension area citrus integrated pest management advisor. …
Citrus industry workers interested in learning more about citrus pest management are encouraged to enroll in Citrus Pest Management, a 16-week course taught by University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) faculty in the fall of 2023. The class provides a comprehensive overview of citrus pests and how best to manage them in today’s citrus greening environment. …
Winter Storm Elliott brought freezing temperatures to the Florida Panhandle Dec. 24–28, 2022, resulting in significant damage to citrus in the cold-hardy growing region. Trees that received significant freeze damage are more vulnerable to pests and diseases. Ambrosia beetles are among the pests being seen as a result of the storm. Because ambrosia beetles generally prefer dead or dying trees, …
The lebbeck mealybug, also known as the hibiscus mealybug, is a pest that has recently become problematic for Florida citrus growers. Extension agent Lourdes Perez Cordero and entomologist Lauren Diepenbrock, both with the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS), recently reported on the pest. According to Cordero and Diepenbrock, the lebbeck mealybug feeds by piercing the …
Lukasz Stelinski for years has promoted saving money on HLB control by spraying for Asian citrus psyllids (ACP) only when their populations reach a certain threshold. The University of Florida Institute of Food and Agricultural Sciences professor still promotes that concept, but with a slightly new twist. TRUNK INJECTION SHOWING PROMISEIn a virtual seminar on April 25, Stelinski advised growers …
This year’s first male flight of California red scale is noticeably later than in prior years, according to Sandipa Gautam, area citrus integrated pest management advisor for University of California Cooperative Extension. The cold and wet winter has had a notable impact on pest populations. “Usually, March 1 is tentatively the time when we see the first male flight in …
Researchers are offering a lebbeck mealybug detection workshop in Fort Pierce on April 25. The event will be held from 9 a.m. to noon at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Indian River Research and Education Center (IRREC). Register for the meeting here. Lebbeck mealybug (Nipaecoccus viridis) is an invasive pest that can cost the …
The city of Weston in Florida reported in early April that one male peach fruit fly was found in a trap near Davie, Florida. This pest attacks at least 50 different hosts, including citrus, according to the Florida Department of Agriculture and Consumer Services (FDACS). The city reported that a perimeter has been established that includes a number of municipalities as …
By Jawwad Qureshi A wide range of pests colonize citrus crops. Most of these species target tree canopies, and a few feed on the roots. Damage is either direct through feeding on the plant tissues or it can be twofold if the pest is also responsible for transmitting the pathogens of a disease or making conditions favorable for the disease …
Citrus growers should emphasize leafminer management this year to preserve new flushes. This is especially important for those producers affected by the Christmas freeze event. The management strategy should include pheromone disruptions, which can help reduce pest populations. Xavier Martini, assistant professor of entomology at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) North Florida Research and …
Researcher Apurba Barman recently reported that ambrosia beetles could be a potential concern following the December 2022 freeze event in the cold-hardy citrus region. Barman is an assistant professor of entomology with the University of Georgia College of Agricultural & Environmental Sciences. Ambrosia beetles are small insects that bore holes into stressed trees. While they have been seen attacking young …
By Lauren Diepenbrock Recently, several articles have highlighted a potential new threat to the citrus industry in Florida, the lime swallowtail. While it is true that this pest has been found in residential citrus plantings in Key West, it is unlikely that lime swallowtail will have much of an impact, if any, on Florida’s commercial citrus industry. Lime swallowtail is …
It’s almost April, and that means it’s almost time for the Florida Grower Citrus Show! The soon-to-be-released April issue of Citrus Industry magazine features an event guide to the new and improved Florida Grower Citrus Show. Included is a complete seminar schedule and list of participating exhibitors and sponsors for the April 13 event. Now under AgNet Media management, the …
Cold-hardy citrus growers need to protect their trees against the citrus leafminer this year, more so than ever. A lack of control could have negative consequences for trees still recovering from the Christmas freeze last December. Xavier Martini, assistant professor of entomology at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) North Florida Research and Education Center, …
Foliar sprays of insecticides timed to citrus flushing provided a significant reduction in Asian citrus psyllid (ACP) populations compared to standard grower practices, researcher Jawwad Qureshi reported. Timing sprays to flushing also led to a reduction in sprays, the University of Florida Institute of Food and Agricultural Sciences associate professor of entomology said in a virtual presentation on Feb. 22. …
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 …
