New incident report
Incident Report Number: 2007-6714
Registrant Name (Full Legal Name no abbreviations): Bayer CropScience Inc.
Address: #100, 3131 - 114th Avenue
City: Calgary
Prov / State: Alberta
Country: Canada
Postal Code: T2Z 3X2
Scientific Study
PMRA Registration No. PMRA Submission No. 2006-7491 EPA Registration No.
Product Name: Movento 150 OD
Unknown
Unknown
Title Spirotetramat Potential Toxicity to Honey Bees
Date 14-SEP-07
No
Increased health or environmental risk
As part of its agricultural development (AD) and stewardship program, Bayer CropScience AG has conducted trials with spirotetramat to evaluate its pollinator compatibility. These trials were not conducted under GLP and formal reports were not prepared, as is typical for field efficacy and development data. Furthermore, the data were collected under experimental conditions (tent, tunnel) that exaggerate actual exposure by confining honey bees to forage only on the treated plants. These AD trials demonstrated that Moventożż has the potential to affect the honey bee brood when the adults of the hive are forced to forage exclusively on flowering crops, specifically after application of Moventożż to the crop at bloom or up to 5 days prior to bloom. Where effects to the honey bee brood were observed, recovery was noted within 2-3 weeks. Although the described trials indicate potential for Moventożż to reduce honey bee brood production, it is important to emphasize that this has only been observed when the honey bees and the hive are artificially confined to the treated crop and, even then, the observed effects are transient (recoverable). Brood effects have not been observed in a higher tiered field study which evaluated the effects to honey bees under realistic field conditions. The field study was submitted to EPA as previously mentioned (Ref: MRID # 469044-62). While the exposure conditions of a tunnel trial are intentionally exaggerated and therefore do not represent the agronomic conditions of use, all of the trials were conducted at use rates similar to those proposed for field use in the USA and Europe. For this reason, we have decided to report them.
No
Unknown
This submission is part of a joint review between Canada, US and Austria to register the new compound (Spirotetramat (2006-6947) and its end use products, Movento 240 SC (2006-7317) and Movento 150 OD (2006-7491) and, is ongoing. No registration decision has been reached thus far.