Introduction: Benomyl is a systemic, benzimidazole fungicide that is selectively toxic to microorganisms and to invertebrates, especially earthworms. It is used against a wide range of fungal diseases of field crops, fruits, nuts, ornamentals, mushrooms, and turf.
The common explanation for his is that sneezing was a symptom of the Plague and so if someone sneezed, people would say 'bless you' because they might have a horrible disease. But in fact it dates from much earlier superstitions, for example, ancient man believed that his breath was also his soul or essence of life..
Early Christians believed that God made man (Adam) come to life by breathing the breath of life into his nostrils, so as in so many other examples, the two superstitions have conflated together over time, the old Pagan belief being Christianised by saying (God) bless you when you expel your soulf/life force by sneezing.