shot berry

shot berry
 n.— «I spoke to Paul Vossen, Sonoma County farm adviser, about your question. He says that your olives are producing what is known as “shot berries,” tiny fruit that isn’t pollinated and then drops from the tree. The most likely reason for this is that the trees lack a pollinizer.» —“Golden Gate Gardener: Barren olive trees may need pollen or more water” by Pam Peirce SFGate (San Francisco, Chronicle) Feb. 6, 2009. (source: Double-Tongued Dictionary)