Pesticide Warning Symbols

• Pesticides are graded according to their toxicity i.e.
• According to how harmful they are to humans.
• Every pesticide must have a label that clearly shows its “danger” level show.
• There are four common danger levels of chemicals.

Purple triangle

Extremely poisonous chemical.

• For example Methyl bromide used in tobacco seedbed fumigation.
• Must be handled with extreme care.
• The poison is extremely lethal,
• Full protective clothing including gloves, coveralls and goggles, breathing mask must be worn when handling such chemicals.

Red Triangle

Very dangerous poison

• Means the poison is very dangerous.
• Must be handled with care and all the safety precautions must be followed.
• Should not be used in the home.

Amber Triangle

• Poisonous pesticide.

Green/Caution Triangle

• Is less toxic but must still be handled with caution.
• May be used in the home.
• For example Killem and other aerosolized sprays.

To access more topics go to the Combined Science Notes page.