We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Development and Survival of Orius insidiosus (Say) Nymphs on Encapsulated Bee Pollen-Based Diet in a Tier-I Toxicity Assay.
- Authors
Tan, Jianguo; Paradise, Mark S.; Levine, Steven L.; Bachman, Pamela M.; Uffman, Joshua P.; Jiang, Changjian; Carson, David B.
- Abstract
The insidious flower bug, Or/us insidiosus (Say) (Heteroptera: Anthocoridae) is an important surrogate species for assessing potential effects of plant-incorporated protectants (PIPs) on nontarget heterotrophic predators. In this study, a continuous dietary exposure system was optimized by assessing the effect of diet composition and age on the survival and development of nymphs of O. insidiosus. Greater than 85% control survival and an acceptable rate of development from nymph hatching to adult was achieved using 5-d-old nymphs at test initiation and a bee pollen-based diet supplemented with 25% Ephestia eggs. There was an unacceptable level of mortality (>40%) and/or a significantly prolonged development time when nymphs were <5 d old at test initiation. When 5-d-old nymphs were fed a bee pollen diet containing 25% Ephestia eggs and 100/xg/g potassium arsenate, time-dependent mortality was observed with a median lethal time (LT50) of 4.4 d and 100% mortality was observed after 10 d of feeding, indicating the effectiveness of the test system to detect adverse effects by dietary exposure. It is recommended that well-defined 5-d-old nymphs and an encapsulated bee pollen-based diet containing 25% ground Ephestia eggs be used in a Tier-I dietary feeding exposure assay for detecting potential effects of PIPs on O. insidiosus nymphs.
- Subjects
ORIUS; NYMPHS (Insects); BEE pollen; DIET; EPHESTIA
- Publication
Environmental Entomology, 2011, Vol 40, Issue 6, p1613
- ISSN
0046-225X
- Publication type
Article
- DOI
10.1603/EN11060