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Below you'll see everything we could locate for your search of “psyllid”
By Lukasz Stelinski Here are some basic guidelines that growers can follow to manage pests successfully and economically in their groves: Take-home messages include the following: Lukasz Stelinski is a professor at the University of Florida Institute of Food and Agricultural Sciences Citrus Research and Education Center in Lake Alfred. Sponsored ContentTake the Sting Out of Fire AntsApril 1, 2026Take the …
California’s Citrus Pest and Disease Prevention Division (CPDPD) has officially updated the requirements for moving bulk citrus fruit within and from a huanglongbing (HLB) quarantine area to a packer/processor. CPDPD is part of the California Department of Food and Agriculture. Here’s an overview of the newly updated requirements, per the CPDPD’s Citrus Grower/Grove Manager Information page: All fruit, no matter …
A newly established quarantine area has been declared following the detection of HLB in five trees in the Valley Center area of California’s San Diego County. The trees were located on a residential property with non-commercial citrus acreage. This is the first time the disease has been confirmed in Valley Center, marking the third area in San Diego County to …
One of the key components of managing HLB is keeping its vector, the Asian citrus psyllid (ACP), in check. Management recommendations for the pest have evolved over time. The history of that evolution is a subject of discussion in the November episode of the All In For Citrus podcast. Lukasz Stelinksi, an entomologist with the University of Florida Institute of …
Federal and state authorities in early November expanded the Mediterranean fruit fly (Ceratitis capitata or Medfly) quarantine in the Leimert Park area of Los Angeles 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) on Nov. 1 and again on Nov. …
Fundecitrus says it repudiates recent articles that claim productivity in Brazil’s São Paulo and Minas Gerais citrus belt will be reduced by 60% in the next five years due to citrus greening disease. Fundecitrus says Chilean and Spanish news portals published such reports on Nov. 14. According to Fundecitrus, this information is not valid, nor was it ever provided by …
Lebbeck mealybug populations are not tied to flush production, entomologist Lauren Diepenbrock reported recently. The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) assistant professor also noted: Diepenbrock sampled lebbeck mealybug populations in commercial citrus groves in Central Florida. Analysis of the seasonal trapping data provided easily observable trends. Based on these trends, she offers the following initial …
By Fernando Alferez, Ute Albrecht, Ozgur Batuman, Jawwad Qureshi and Saoussen Ben Abdallah Individual protective covers (IPCs), which are psyllid-exclusion mesh bags, are increasingly being adopted to efficiently protect newly planted citrus trees from huanglongbing (HLB) infection. However, IPCs typically must be removed after two to three years due to tree growth. Early evidence indicates that brassinosteroids (Brs), a relatively …
By Amir Rezazadeh Citrus trees face many threats that can impact fruit development and overall tree health. Pests, including aphids, mites and other insects, can damage fruit and transmit diseases. Extreme weather events, such as hailstorms or heavy rains, can cause physical harm, leading to blemishes and reduced market value. In addition, citrus growers have faced persistent challenges because of …
Fundecitrus researcher Franklin Behlau lectured about canker and HLB and participated in other ways at the recent Asian Citrus Congress in Nagpur, India. His lecture addressed the advancement of HLB (also known as greening) in the Brazilian citrus belt and the work carried out by Fundecitrus in combating HLB and canker. Behlau also moderated a technical session and participated in …
The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) has been awarded five federal grants totaling more than $5 million to control HLB. The grants are from the U.S. Department of Agriculture’s National Institute of Food and Agriculture (NIFA). HLB is caused by the bacterium Candidatus Liberibacter asiaticus (CLas). The Asian citrus psyllid can transmit CLas into a …
The governor of Brazil’s state of São Paulo, Tarcísio de Freitas, on Oct. 16 decreed the formation of a state committee for greening contingency after meeting with several members of the state’s citrus industry. Greening affects 38.06% of orange trees in the states of São Paulo and Minas Gerais. The governor acted after considerations by the Sylvio Moreira Citriculture Center/Agronomic …
Recently, the California Department of Food and Agriculture (CDFA) declared an HLB quarantine in Ventura County following the first detections of the disease in the county. In response, the Citrus Pest & Disease Prevention Program (CPDPP) issued a list of HLB resources. The resources are intended to help inform the citrus industry about what changes to expect from the quarantine, …
Representatives of Fundecitrus and the Brazilian citrus industry went to Seville, Spain, to participate in a meeting about mechanical harvesting of citrus. The key objective was learning about different tools and machines designed for the mechanization of citrus handling. One example of machinery is the mechanized harvesting equipment used for densely cultivated orange groves. In one of their visits, the …
By Davie Kadyampakeni and Megan Dewdney The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) conducted a six-year project to determine if plant nutritional fertilizer sources coupled with specific crop protection chemicals help mitigate citrus diseases. This project was conducted on a 5-acre commercial citrus grove block near the Citrus Research and Education Center (CREC) in Lake Alfred. …
By Christopher Vincent, Yu Wang and Nabil Killiny Mild shade reduces stress, increases growth and yield, and may improve pest management under huanglongbing (HLB). It reduces high temperature and water stresses. Shade also may reduce HLB transmission by making trees less visible to Asian citrus psyllids (ACP). Shaded trees have less ACP, and shade appears to reduce the severity of …
Fundecitrus recently launched the institutional awareness-raising film Urgência as yet another part of the Greening Is Serious campaign. The campaign began in January last year. In the film, 10 representatives of the citrus sector talk about the economic, social, environmental and historical dimensions of citrus growing in São Paulo and Minas Gerais. They point out everything that is at risk …
Due to major problems with pests and diseases, Brazilian producers have adopted alternative practices, such as dense planting, Fundecitrus’ Citricultor magazine recently reported. These practices reduce costs, increase yield and achieve a faster return on investment. As a result of this trend, new production practices are needed to improve management, including the frequent pruning of trees, which is essential in …
Representatives of the Brazilian private citrus sectors of São Paulo and Minas Gerais met Sept. 25 with members of São Paulo’s government to formulate joint action plans against citrus greening disease. Representing the private sector in the meeting were Fundecitrus, Brazilian Table Citrus Association, Vivecitrus, Citrus Consultants Group and Technical Assistance and Consultancy Group in Citrus. The government of the …
The California Department of Food and Agriculture (CDFA) has declared a quarantine in Ventura County following the detection of the citrus disease huanglongbing (HLB), or citrus greening, in two citrus trees on one residential property in the city of Santa Paula. These detections are the first HLB-positive trees in Ventura County. CDFA is working with the U.S. Department of Agriculture …
