Primary Poisonous Toad Species in South Florida
The cane toad, also known as the bufo toad or giant toad, is the main poisonous toad species in south Florida. It is an invasive amphibian native to Central and South America that was introduced to control pests in sugarcane fields. Its skin glands produce bufotoxins, which are toxic steroids that can affect the heart and nervous system of animals and humans.
The Florida Fish and Wildlife Conservation Commission identifies the cane toad as the most common dangerous toad in the region. These toads can grow up to 6 to 9 inches in length and are often found in residential areas, gardens, and near water sources. Their presence has increased in urban and suburban habitats across Miami-Dade, Broward, and Palm Beach counties.
Toxicity Levels and Health Risks
Cane toad secretions contain bufotenin and bufotoxins, which can cause serious health issues if ingested or absorbed through mucous membranes. Symptoms in humans include burning sensations in the mouth, swelling, nausea, irregular heartbeat, and, in severe cases, seizures or death. Pets, especially dogs, are at high risk because they may lick or bite the toad.
The ASPCA Animal Poison Control Center lists cane toad toxicity as a critical veterinary emergency. According to their data, untreated exposure can lead to fatality in dogs within 15 minutes to several hours. Immediate veterinary care and thorough rinsing of the mouth are essential first-response steps for suspected poisoning cases.
Identification, Prevention, and Control Measures
Identifying a cane toad involves looking for its large size, dry warty skin, and the distinctive parotoid glands located behind the eyes. They are often active at night and are attracted to outdoor lights that draw insects. Residents can reduce encounters by removing standing water, securing trash lids, and closing gaps under doors.
Professional pest control services and local wildlife agencies offer guidance on humane toad management. The University of Florida Institute of Food and Agricultural Sciences provides fact sheets on non-lethal deterrents and safe handling protocols. For detailed reporting and identification support, the Florida Fish and Wildlife Conservation Commission website offers resources on invasive species management.