Insecticide<unk>  is generally measured using acute contact<unk>  values – the exposure level that causes 50% of the population exposed to die.<unk>  thresholds are generally set at * highly toxic (acute LD50 100μg/bee) to adult<unk> .
Pesticide toxicity to bees
Intentional contagion of infection
Pesticide poisoning
Animal bite
Pesticide residue
Transmission of hepadnaviruses
Behavior-altering parasite
Mushroom poisoning