Impacts of Ultra-Low Volume Resmethrin Applications on Non-Target Insects
| Autor: | Stephen A Manweiler, Meredith Blank, Karen S. Oberhauser, Alma de Anda, Rebecca V. Batalden, Rosemary Lelich |
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| Rok vydání: | 2009 |
| Předmět: |
Conservation of Natural Resources
Insecticides Mosquito Control animal structures Population Wind Risk Assessment Toxicology Lepidoptera genitalia chemistry.chemical_compound Danaus Monarch butterfly Pyrethrins parasitic diseases Animals education Ecology Evolution Behavior and Systematics education.field_of_study Larva biology fungi Public Health Environmental and Occupational Health General Medicine biology.organism_classification Resmethrin Mosquito control Culicidae chemistry Insect Science Linear Models Butterflies Ultra-low volume |
| Zdroj: | Journal of the American Mosquito Control Association. 25:83-93 |
| ISSN: | 8756-971X |
| DOI: | 10.2987/08-5788.1 |
| Popis: | We studied the impacts of exposure to ultra-low volume (ULV) applications of resmethrin (Scourge) on monarch butterfly (Danaus plexippus) larvae and adults. In a series of 3 experiments, we measured short- and long-term survival of monarch larvae and adults, and the impacts of consuming previously exposed host plants on monarch larvae. We measured efficacy during all experiments with caged sentinel mosquitoes, and during Experiments 1 and 2 with pretreatment, treatment, and posttreatment measurements of mosquito abundance in CO2 traps. Downwind monarch larval and adult mortality were higher than upwind or control mortality up to 120 m, but not 170 m, from the spray path. In 1 experiment, monarchs exposed to spray as larvae developed into smaller adults, suggesting sublethal impacts. Milkweed host plants sprayed 1, but not 2 or 4 days previously, resulted in increased monarch larval mortality. Sentinel mosquito mortality was generally high, and CO2 traps revealed substantially lower mosquito abundance immediately after the treatment (>90% reduction) but |
| Databáze: | OpenAIRE |
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