The U.S. Department of Agriculture Animal and Plant Health Inspection Service (APHIS) and the Texas Department of Agriculture (TDA) recently established and expanded Mexican fruit fly (Mexfly) quarantine areas in Texas. PEÑITAS QUARANTINE On Dec. 12, the agencies established a Mexfly quarantine in Peñitas, Hidalgo County, designated as the Peñitas quarantine. This quarantine was established in response to the confirmed …
Updated Australian Citrus Guide Available
The new Citrus Plant Protection Guide 2025-26 from Australia’s New South Wales Department of Primary Industries and Regional Development (NSW DPIRD) is available online. The seventh edition of the guide provides up-to-date information on all aspects of managing pests and diseases in citrus orchards and includes updates on NSW DPIRD projects. Some of the projects are funded by Hort Innovation …
Can Physical Barriers Improve Sting Nematode and Root Weevil Management?
Larry Duncan, professor of nematology with the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS), recently presented his research regarding the management of sting nematodes and diaprepes root weevils. The presentation was part of an ongoing series of Zoom meetings organized by Mongi Zekri, UF//IFAS citrus Extension agent. STING NEMATODE Sting nematode is an important pest, especially in …
New Mexfly Quarantine in Texas
On Dec. 5, U.S. Department of Agriculture Animal and Plant Health Inspection Service (APHIS) and Texas Department of Agriculture (TDA) officials established a new Mexican fruit fly (Mexfly) quarantine. Located in La Feria, Cameron County, Texas, it has been designated the La Feria quarantine. FOUND IN GRAPEFRUIT GROVE APHIS and TDA established the new quarantine in response to the Dec. …
Quarantine Changes for California and Texas
Federal and state agriculture officials recently made changes to huanglongbing (HLB, also known as citrus greening disease) and Mediterranean fruit fly (Medfly) quarantines in California. They also removed a Mexican fruit fly (Mexfly) quarantine in Texas. The U.S. Department of Agriculture Animal and Plant Health Inspection Service (APHIS) reported these changes. CALIFORNIA HLB On Nov. 25, APHIS and the California …
HLB and Medfly Quarantines Expanded
California’s huanglongbing (HLB, also known as citrus greening) quarantine and its Santa Clara Mediterranean fruit fly (Medfly) quarantine were recently expanded. The U.S. Department of Agriculture Animal and Plant Health Inspection Service (APHIS) in cooperation with the California Department of Food and Agriculture (CDFA) expanded the quarantines. HLB The HLB-quarantined area in Riverside County was expanded by 3 square miles. …
Medfly Quarantine Expansion
Federal and state agriculture officials expanded the Santa Clara Mediterranean fruit fly (Medfly) quarantine twice in late October in California’s Alameda and Santa Clara counties. The U.S. Department of Agriculture Animal and Plant Health Inspection Service (APHIS) and the California Department of Food and Agriculture (CDFA) enacted the expansion. On Oct. 21, the agencies expanded the quarantine in response to …
Several Expansions to Santa Clara Medfly Quarantine
Over the past month, the U.S. Department of Agriculture Animal and Plant Health Inspection Service (APHIS) and the California Department of Food and Agriculture (CDFA) have expanded the Santa Clara Mediterranean fruit fly (Medfly) quarantine in California three times. Their actions resulted in the inclusion of a portion of Alameda County in the quarantine while also expanding the quarantine area …
Changes to Mexfly Quarantines in Texas
The U.S. Department of Agriculture Animal and Plant Health Inspection Service (APHIS) and the Texas Department of Agriculture (TDA) have made several recent changes to Mexican fruit fly (Mexfly) quarantines in Texas. DONNA REMOVED On Sept. 10, the agencies reduced the Donna Mexfly quarantine in Hidalgo County by 66 square miles, including 945 acres of commercial citrus. The amended quarantine …
Texas Mexfly Fruit Movement Protocol Revised
Federal agriculture officials have revised the requirements for the interstate movement of fresh citrus fruit from core areas of a Mexican fruit fly (Mexfly) quarantine in Texas. The U.S. Department of Agriculture Animal and Plant Health Inspection Service (APHIS) issued a revised federal order and protocol on Sept. 23. The protocol in the federal order provides three schedules for the interstate …
California Medfly and Oriental Fruit Fly Updates
The U.S. Department of Agriculture Animal and Plant Health Inspection Service (APHIS) and the California Department of Food and Agriculture (CDFA) in September took quarantine actions regarding Mediterranean fruit fly (Medfly) and Oriental fruit fly (OFF) in California. MEDFLY On Sept. 15, APHIS and CDFA expanded the Santa Clara Medfly quarantine in Santa Clara County. The action was in response …
Fall Insect and Mite Management
By Lauren Diepenbrock Unlike northern regions, fall in Florida is not generally a time when insect, mite and other invertebrate pest populations decline rapidly. In Florida citrus, we generally see the opposite of this trend. In the hot, dry end of summer and early fall, mite populations often soar, requiring management to prevent excessive damage to fruit. (See The Florida …
The Relationship Between Snails and Weeds Needs Research
The preference of Bulimulus bonariensis snails to feed on weeds in citrus groves does not necessarily imply that increased weed management will lead to a reduction in pest populations. This relationship requires further research by Lauren Diepenbrock, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) assistant professor and entomologist. “It’s something I think we really need to look …
Tools Available for Bulimulus Snail Management
“Bulimulus snail management is an ongoing challenge, but we have some tools to help!” researcher Lauren Diepenbrock stated in her recent Citrus & Specialty Crop Expo presentation. CHALLENGES Diepenbrock, associate professor of entomology at the University of Florida Institute of Food and Agricultural Sciences Citrus Research and Education Center, reported that not every Florida grove is infested with the snails. …
Texas Mexfly Quarantine Update
Federal and Texas agriculture officials amended the Brownsville Mexican fruit fly (Mexfly) quarantine in Cameron County and removed the Edinburg Mexfly quarantine in Hidalgo County. The U.S. Department of Agriculture Animal and Plant Health Inspection Service (APHIS) and the Texas Department of Agriculture (TDA) made the amendments. On Aug. 22, APHIS and TDA reduced the Brownsville quarantine by 67 square …
Bird and Katydid Damage in Georgia Citrus
In late August, Jake Price with University of Georgia Extension reported on damage to citrus caused by birds and katydids. BIRDSAs it is now getting later in the season, fruit are getting larger, and people are noticing more blemishes on fruit. Birds can cause one type of unusual damage. If you see green fruit that appears scratched or scraped with …
New Medfly Quarantine in California
A portion of Santa Clara County has been placed under quarantine for the Mediterranean fruit fly (Medfly) following the detection of two wild female flies in the city of San José. If not stopped, Medflies can devastate fruits and vegetables by reproducing and leaving larvae in produce. The invasive flies can then spread to other regions. A quarantine is a …
Citrus Mealybug Activity Peaking in California
An August citrus mealybug (CMB) pest memo released by University of California Agriculture and Natural Resources warned that CMB activity typically peaks during the summer months. Highlights from the memo follow: In August, it is critical to access both pest pressure and natural enemy activity. This is a crucial period for making informed decisions that support biological control and avoid …
Snail Update: Impacts and Abamectin
Snail impacts on Southeast citrus production can be devastating. A big part of the problem is not the damage to citrus trees but the harm the pest inflicts on irrigation systems. Lauren Diepenbrock, University of Florida Institute of Food and Agricultural Sciences associate professor and entomologist, conveyed this message to cold-hardy producers during the Citrus Grower’s Summer Update meeting on …
Mexfly Quarantines Reduced in Texas
Federal and Texas officials have amended the Brownsville Mexican fruit fly (Mexfly) quarantine in Cameron County and the Edinburg-Palmview-Donna Mexfly quarantine in Hidalgo County. In addition, they removed the Sebastian Mexfly quarantine in Willacy County and the Roma Mexfly quarantine in Starr County. The actions taken by the U.S. Department of Agriculture’s Animal and Plant Health Inspection Service (APHIS) and …





























