The Right Attraction

摘要

Rose gardens make fruit orchards more inviting to friendly wasps. WILD multiflora roses are considered a nuisance by orchardists who labor to remove them from along fence lines and irrigation canals. But a change of attitude is taking place around apple, pear, and cherry orchards in parts of Washington and Oregon. There, some growers are actually planting wild rose gardens next to their orchards as part of an areawide study with USDA-Agricultural Research Service (ARS) and Washington State University (WSU) scientists to bolster spring populations of tiny, parasitic wasps that attack several leafroller moths in tree fruits.