Risk (% probability) and time to reach topical LD50 (T50 in days) for worker bees, estimated as contact exposure with 1 g of contaminated pollen, at average or maximum levels, during 2 days.

1A = acaricide; F = fungicide; I = insecticide; IGR = insect growth regulator; IS = insecticide synergist.2Mixture LD50 estimated in accordance with known synergistic ratios [67], [68], [69].3Chronic LD50 for 77 days exposure.

1A代表杀虫剂；F代表杀菌剂；I代表杀虫剂；IGR代表昆虫生长调节剂；IS代表杀虫剂增效剂。2混合物的半数致死量（LD50）按照已知的协同比率[67]、[68]、[69]进行估算。3对77天暴露的慢性LD50。