Medfly

Medfly Quarantine Expanded Again

Daniel CooperCalifornia Corner, Pests, Regulation

Twice in December, agriculture officials expanded the Mediterranean fruit fly (Medfly) quarantine area in California’s Alameda and Santa Clara counties, designated the Fremont quarantine. The U.S. Department of Agriculture Animal and Plant Health Inspection Service (APHIS) and the California Department of Food and Agriculture (CDFA) made the expansions Dec. 5 and Dec. 12. The quarantine was expanded in response to …

pest management

Plan Your 2025 Pest Management

Daniel CooperPest Management, Pests, Tip of the Week

By Lauren Diepenbrock Pest management is a year-round challenge in Florida citrus. With the warm climate, pests are at the ready as soon as plant resources are available to them. With knowledge of invertebrate biology in relation to tree phenology, growers can develop plans to protect fruit and maintain productive citrus trees. HIGHLY PROBLEMATIC PESTS Populations of some highly problematic …

rats

Rats Wreak Havoc in California Orchards

Daniel CooperCalifornia Corner, Pests

Rodents, particularly rats, have wreaked havoc in California orchards and vineyards this year. Some growers have reported yield losses, damage to trees and destruction of irrigation lines, electrical wiring and other infrastructure. Farmers face soaring costs to replace what has been destroyed or damaged, but also to control populations of the pests. The rodent problem was initially reported in San …

Mexfly

Mexfly Quarantine Expanded in Texas

Daniel CooperPests, Regulation, Texas

Agriculture officials on Nov. 18 expanded the Mexican fruit fly (Mexfly) quarantine in Donna, Hidalgo County, Texas. The U.S. Department of Agriculture Animal and Plant Health Inspection Service (APHIS) and the Texas Department of Agriculture (TDA) took the action. Expansion of the Donna quarantine is in response to the confirmed detection on Nov. 14 of a Mexfly larva in fruit …

Mexfly quarantine

Mexfly Quarantine Changes Impact Texas Citrus

Daniel CooperPests, Regulation, Texas

The U.S. Department of Agriculture Animal and Plant Health Inspection Service (USDA APHIS) and the Texas Department of Agriculture (TDA) recently took several actions regarding Mexican fruit fly (Mexfly) quarantine areas. On Oct. 9, they expanded the Mexfly quarantine in Donna, Hidalgo County. On Oct. 11, they reduced a portion of the Harlingen-Sebastian Mexfly quarantine area in Cameron, Hidalgo and …

control

Control of Asian Citrus Psyllids and Leafminers

Daniel CooperPests

Biological control can have a significant impact on Asian citrus psyllid (ACP) and citrus leafminer (CLM) populations in Florida, a researcher reported in a Nov. 19 virtual meeting. Jawwad Qureshi, associate professor of entomology with the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS), also discussed some cultural and chemical controls that work on the pests.  ACP Qureshi, …

Oriental fruit fly

California Announces Oriental Fruit Fly Quarantine

Daniel CooperCalifornia Corner, Pests, Regulation

A portion of California’s Orange County has been placed under quarantine for the Oriental fruit fly. The California Department of Food and Agriculture (CDFA) reported the quarantine Nov. 6. It followed the detection of eight flies in and around the cities of Santa Ana and Garden Grove.  The quarantine zone measures 87 square miles. It is bordered on the north …

post-hurricane

Post-Hurricane Pest Management

Daniel Cooperhurricane, Pests

University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researcher Lauren Diepenbrock recently offered post-hurricane observations and management suggestions for some insects and snails. Diepenbrock is an assistant professor at the Citrus Research and Education Center.  BULIMULUS SNAILS Related Bulimulus snail species have been found to lay eggs in the fall after major rain events. Both small and larger …

Medfly

Medfly Quarantine Expanded in California

Daniel CooperCalifornia Corner, Pests, Regulation

The U.S. Department of Agriculture Animal and Plant Health Inspection Service (USDA/APHIS) and the California Department of Food and Agriculture (CDFA) expanded the Mediterranean fruit fly (Medfly) quarantine in Alameda and Santa Clara counties in California twice in October. The expansions are in response to the confirmed detections between Oct. 7 and Oct. 15 of 22 wild female Medflies, 14 …

quarantine areas

Mexfly Quarantine Areas Expanded and Consolidated in Texas

Daniel CooperPests, Regulation, Texas

The U.S. Department of Agriculture’s Animal and Plant Health Inspection Service (USDA/APHIS) and the Texas Department of Agriculture (TDA) have expanded the Harlingen and Sebastian Mexican fruit fly (Mexfly) quarantine areas in Texas and consolidated them into a single quarantine area, now termed the Harlingen-Sebastian quarantine. The quarantine area spans portions of Cameron, Hidalgo and Willacy counties. DETECTIONS AND EXPANSIONS …

insecticides

Brazilian Citrus Researchers Discuss Pest Management

Daniel CooperBrazil, Pests

Fundecitrus researchers Marcelo Miranda and Wellington Ivo Eduardo participated in the recent XXIX Brazilian Congress of Entomology in Uberlândia in the state of Minas Gerais. In a round table discussion on fruit plant pests, Miranda addressed the challenges of implementing integrated pest management in citrus for insect vectors of pathogens. This includes the leafhopper that transmits citrus variegated chlorosis and …

pest risk

Pest Risk Assessment of Importing Citrus from Botswana

Daniel CooperInternational, Pests, Trade

The U.S. Department of Agriculture Animal and Plant Health Inspection Service (USDA/APHIS) has drafted a pest risk assessment (PRA) that describes potential pests associated with importing fresh commercially produced citrus fruits from Botswana into the United States. The PRA evaluates pest risk presented by lemon, grapefruit, mandarin and sweet orange from Botswana for consumption. The entry of these citrus fruits …

Mexfly

Texas Mexfly Quarantine Actions

Daniel CooperPests, Regulation, Texas

The U.S. Department of Agriculture Animal and Plant Health Inspection Service (USDA/APHIS) and the Texas Department of Agriculture have taken several Mexican fruit fly (Mexfly) quarantine actions in Texas since mid-August. DONNA On Aug. 15, the agencies established a Mexfly quarantine in Donna, Hidalgo County. This is in response to the confirmed detection on Aug. 10 of Mexfly larvae in …

medfly

California Medfly Quarantine Expanded

Daniel CooperCalifornia Corner, Pests, Regulation

Federal and state agriculture officials on Sept. 6 established a Mediterranean fruit fly (Ceratitis capitata; Medfly) quarantine in Alameda County, California. On Sept. 11, this quarantine was expanded to include a small portion of Santa Clara County. The actions were taken by the U.S. Department of Agriculture Animal and Plant Health Inspection Service (USDA APHIS) and the California Department of …

medfly

Medfly Quarantine Issued in California

Daniel CooperCalifornia Corner, Pests, Regulation

A portion of Alameda County in California has been placed under quarantine for the Mediterranean fruit fly (Medfly) following the detection of one wild mated female in Fremont. The U.S. Department of Agriculture, the Alameda County agricultural commissioner and California Department of Food and Agriculture (CDFA) are working collaboratively on the project. The quarantine area in Alameda County measures approximately …

Mexfly

Mexfly Quarantine Actions Affect Texas Citrus

Daniel CooperPests, Regulation, Texas

Federal and state agriculture officials took several actions this month regarding Mexican fruit fly (Mexfly) quarantines in Texas. The U.S. Department of Agriculture Animal and Plant Health Inspection Service (USDA APHIS) and the Texas Department of Agriculture (TDA) have: BROWNSVILLE Establishment of the Brownsville quarantine is in response to the confirmed detection on July 26 of Mexfly larvae in citrus …

giant swallowtail

Getting a Handle on the Giant Swallowtail

Daniel CooperPests, Tip of the Week

By Amir Rezazadeh The giant swallowtail butterfly (Papilio cresphontes) is a beautiful insect, admired for its large wingspan and vibrant yellow and black coloration. However, for citrus growers, this butterfly is often viewed with less enthusiasm. The larvae of the giant swallowtail, commonly referred to as “orange dogs,” can cause significant damage to citrus trees. Understanding the nature of this …

Oriental fruit fly

Oriental Fruit Fly Quarantine Removed

Daniel CooperCalifornia Corner, Pests, Regulation

Federal and state officials on Aug. 11 removed the Oriental fruit fly quarantine in California’s Riverside and San Bernardino counties. This action releases the remaining 365 square miles of the quarantine, which contained 1,800 acres of commercial agriculture. Release from quarantine occurred after three generations elapsed since the date of the last detection, based on a degree-day model. The U.S. …

pests

EU Intercepts Pests From South African and Brazilian Citrus

Daniel CooperExport/Import, International, Pests

The European Union (EU) in July intercepted 11 shipments infested with the quarantine pests citrus black spot (CBS) and false moth in citrus imports from South Africa. Eight CBS cases were intercepted in lemons, one in oranges and one in grapefruit. There was one false moth detection in oranges. The Valencian Farmers Association (AVA-ASAJA) called on Ursula von der Leyen, …

fruit fly

Winning the Fruit Fly Fight

Daniel CooperPests, Regulation

Federal and state agriculture officials recently removed several fruit fly quarantines in Texas and California. TEXAS On July 16, the U.S. Department of Agriculture Animal and Plant Health Inspection Service (USDA/APHIS) and the Texas Department of Agriculture (TDA) removed the Mexican fruit fly (Mexfly) quarantine in Sullivan City, Hidalgo County. This action releases 68 square miles from quarantine. There was …