Parasitism and predation rates on sentinel egg masses of the invasive brown marmorated stink bug, Halyomorpha halys, in vegetable crops in Maryland.

Sentinel egg masses of the invasive pest, the brown marmorated stink bug were placed in three crops, tomato, bell pepper and squash. Seasonal differences in nymph survival, egg predation and parasitism rates were determined for each crop from June through September. The species composition of parasitoids was determined for parasitoids that successfully emerged from eggs, parasitoids that were found guarding egg masses at the time of collection, and for fully or partially developed parasitoids that failed to emerge from eggs, but were identified from dissections. The predominant parasitoid of brown marmorated stink bug eggs in vegetable crops was Telenomus podisi.