Toxicity ofAstragalus MiserV.Serotinusto the Honeybee

Abstract
Summary Field observations in 3 years linked the occurrence of honeybee poisoning to the flowering of timber milkvetch (Astragalus miser v. serotinus). The nectar of this plant was found to contain miserotoxin, a nitropropanol glycoside. Feeding trials with caged bees demonstrated the toxicity of aliphatic nitro compounds TLC methods were developed for detecting nitro-toxins in nectar and the rectal sac of the honeybee.