noun
: a pesticidal spray applied to fruit trees (as apple and pear) just after the petals fall but before the calyx closes — called also petal fall spray, shuck spray
noun
: a pesticidal spray applied to fruit trees (as apple and pear) just after the petals fall but before the calyx closes — called also petal fall spray, shuck spray
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012