The egg parasitoids Trissolcus japonicus (Ashmead) and mitsukurii (Hymenoptera: Scelionidae) are the most effective biocontrol agents of invasive agricultural pest Halyomorpha halys (Stål) (Heteroptera: Pentatomidae) in its native range (east Asia). T. sympatric areas. In northern Italy, where H. is a major fruit orchards, adventive populations both species spreading, artificially released unde...

Limb jarring sampleswere taken in fourexperimental appleorchards (onecompletely unmanaged; one with horticultural management and no pest management; one with horticultural management, no pest management, and interplanted with peach and sour cherry; and one under conventional commercial management practices) at hourly intervals over a 24-h period at four times in 1991. A total of 1,176 individua...

FRIENDS WITH BENEFITS; NATURAL ENEMIES AND POLLINATORS IN VIRGINIA CUCURBIT PRODUCTION. James M. Wilson & Thomas P. Kuhar, Department of Entomology, Virginia Tech, Blacksburg, Virginia 24061. Cucurbit production in Virginia provides the commonwealth with melons, pumpkins, summer squashes, and cucumbers, all of which are dependent upon adequate pollination for fruit set and development. Growers ...