Avocado

Red-footed Tortoise

Chelonoidis carbonarius

Contains persin — toxic to reptiles including red-footed tortoises.

Eastern Box Turtle

Terrapene carolina

Contains persin — toxic to reptiles including box turtles.

Red-eared Slider

Trachemys scripta elegans

Contains persin — toxic to reptiles. Do not feed.

Yellow-bellied Slider

Trachemys scripta scripta

Contains persin — toxic to reptiles. Do not feed.

Painted Turtle

Chrysemys picta

Contains persin — toxic to reptiles. Do not feed.

Hermann's Tortoise

Testudo hermanni

Contains persin, which is toxic to reptiles. All parts of the plant — flesh, skin, pit, leaves — should be avoided entirely.

Greek Tortoise

Testudo graeca

Contains persin, which is toxic to reptiles. All parts of the plant — flesh, skin, pit, leaves — should be avoided entirely.

Sulcata Tortoise

Centrochelys sulcata

Contains persin — toxic to reptiles. Do not feed.

Leopard Tortoise

Stigmochelys pardalis

Contains persin — toxic to reptiles. Do not feed.

Russian Tortoise

Agrionemys horsfieldii

[confidence: high] [source: The Tortoise Table plant database; ASPCA Animal Poison Control (cross-ref); persin toxicity review in herbivores and reptiles] Avocado contains persin, a fungicidal toxin concentrated in the leaves, bark, and skin; persin causes myocardial necrosis and respiratory distress in reptiles; do not feed any part.