| the effect of nest box distribution on sustainable propagation of osmia lignaria (hymenoptera: megachilidae) in commercial tart cherry orchards. | the blue orchard bee, osmia lignaria (say), is a solitary bee that is an excellent pollinator of tree fruit orchards. due to the annual rising costs of honey bee hive rentals, many orchardists are eager to develop management tools and practices to support o. lignaria as an alternative pollinator. establishing o. lignaria pollination as a sustainable industry requires careful consideration of both bee and orchard management. here, we test the effect of artificial nest box distribution on in-orcha ... | 2017 | 28365763 |
| effects of fungicide and adjuvant sprays on nesting behavior in two managed solitary bees, osmia lignaria and megachile rotundata. | there is a growing body of empirical evidence showing that wild and managed bees are negatively impacted by various pesticides that are applied in agroecosystems around the world. the lethal and sublethal effects of two widely used fungicides and one adjuvant were assessed in cage studies in california on blue orchard bees, osmia lignaria, and in cage studies in utah on alfalfa leafcutting bees, megachile rotundata. the fungicides tested were rovral 4f (iprodione) and pristine (mixture of pyracl ... | 2015 | 26274401 |
| progeny of osmia lignaria from distinct regions differ in developmental phenology and survival under a common thermal regime. | many insects, including some bees, have extensive subcontinental distributions that can differ in climatic conditions. within and beyond these distributions, humans intentionally transport beneficial insects, including bees, to non-natal geographic locations. insects also are experiencing unprecedented climatic change in their resident localities. for solitary bees, we know very little about the adaptive plasticity and geographic variation in developmental physiology that accommodates the differ ... | 2014 | 24879969 |