The pesticide label is the single most important document for any applicator. Under FIFRA, "the label is the law" â using a pesticide inconsistent with its labeling is a federal violation. This guide walks through every section of a pesticide label.
Front Panel â Quick Reference
Brand/Trade Name
The commercial name of the product. Different brand names can contain the same active ingredient.
Signal Word
CAUTION = Category III-IV (slightly toxic). WARNING = Category II (moderately toxic). DANGER = Category I (highly toxic). DANGER-POISON with skull and crossbones = Category I (can be fatal).
Active Ingredient Statement
Lists the chemical name and percentage of each active ingredient. "Inert ingredients" shows the total percentage of non-active components.
EPA Registration Number
Format: XXXXX-YY. Uniquely identifies this product and confirms EPA registration. Must appear on every label.
EPA Establishment Number
Identifies the manufacturing facility. Used for tracking and product recalls.
"Keep Out of Reach of Children"
Required on EVERY pesticide label by federal law. No exceptions.
Restricted Use Pesticide (if applicable)
If present, only certified applicators or persons under their direct supervision may use this product.
Precautionary Statements
- Hazards to Humans: Routes of exposure, specific PPE requirements, and health hazards
- First Aid: What to do for each route of exposure (skin, eyes, ingestion, inhalation) plus emergency number
- Environmental Hazards: Toxicity to fish, bees, birds, and other organisms. Buffer zone requirements.
- Physical/Chemical Hazards: Flammability, reactivity, and storage precautions
Directions for Use
This is the legally binding section that tells you exactly how to use the product:
- Sites: Specific crops, animals, or areas where use is legal
- Target pests: Which pests this product is registered to control
- Application rates: The legal range (minimum to maximum) in oz/acre, lb/acre, or similar units
- Timing: When to apply (growth stage, temperature, time of day)
- Method: How to apply (broadcast, spot, soil drench, foliar, etc.)
- REI (Re-Entry Interval): Time workers must wait before entering treated areas
- PHI (Pre-Harvest Interval): Minimum days between last application and harvest
- Maximum applications: How many times per season/crop cycle
Storage and Disposal
Labels specify how to store the product (temperature, ventilation, separation from food/feed) and how to dispose of excess product and containers (triple-rinse, recycling programs, hazardous waste facilities).
Key Rules to Remember
- You CAN apply at a rate lower than the maximum (within the labeled range)
- You CANNOT apply at a rate higher than the maximum
- You CANNOT apply to sites not listed on the label
- You CAN use fewer applications than the maximum allowed
- You MUST follow all PPE requirements
- You MUST observe REIs and PHIs