This pin-prick size wound will enlarge into a catface type blemish as the fruit enlarges. The stink bugs lay eggs outside orchard in May, nymphs develop iinto adults that move into orchards in early to mid 11 June according to new pheromone traps. This will eliminate the overwintering populations of plum curculio, tarnished plant bugs, stink bugs and oriental fruit moths. Adults began to emerge by 31 March.
Harvest is the time to inspect fruit for red circular spots indicating scale infested tree.
Mark such trees and apply thorough coverage of at bud swell next spring to kill overwintering adults.