Pest description and crop damage Variously colored shield-shaped bugs that feed on flowers and fruit, resulting in poor set or malformed fruit. Stink bugs are not currently known to be economic pests of grape in Oregon. Chemical control information is not widely available and is not considered effective at this time, in part because of low infestation levels.
Brown Marmorated Stink Bug: An Emerging Threat to Pacific Northwest Agriculture
Additional information can be found at https://www.stopbmsb.org/managing-bmsb/management-by-crop/grapes/