Pesticide Toxicity To Bees - Classification

Classification

Insecticide toxicity is generally measured using acute contact toxicity values LD₅₀ – the exposure level that causes 50% of the population exposed to die. Toxicity thresholds are generally set at

• highly toxic (acute LD50 < 2μg/bee)
• moderately toxic (acute LD50 2 - 10.99μg/bee)
• slightly toxic (acute LD50 11 - 100μg/bee)
• nontoxic (acute LD50 > 100μg/bee) to adult bees.