Phytotoxic
FYE-toh-TOK-sik🦋 Ecology●● Intermediate
Also known as: plant toxicity
Phytotoxicity can result from excessive fertilizer salts, herbicide drift, improper pesticide application, or environmental contaminants. Symptoms include leaf burn, necrosis, chlorosis, and stunted growth. Common phytotoxic situations include applying neem oil in direct sun (causes leaf burn), using pressure-treated lumber containing copper near roots, and over-applying copper fungicide.
Etymology
Greek phyton (plant) + toxikon (poison)