Document MJRRN8xD7VboaJ5G3qoVNyOXx

Message From: Sent: To: CC: Subject: Attachments: Scott Herndon [sherndon@americansugarbeet.org] 5/18/2017 2:47:03 PM Beck, Nancy [/o=ExchangeLabs/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=168ecb5184ac44de95a913297f353745-Beck, Nancy] Graham, Amy [/o=ExchangeLabs/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=26722dfde5b34925b0ad9a8dd4aff308-Graham, Amy]; Palich, Christian [/o=ExchangeLabs/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=330ad62el58d43af93fcbbece930d21a-Palich, Chr]; Bennett, Tate [/o=ExchangeLabs/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=lfa92542f7ca4d01973bl8b2fllb9141-Bennett, El]; Cassie Bladow [Cassie.Bladow@beetsugar.org] FW: Fungicides - potentially for use in sugarbeets 2017 CLS on sugarbeet situation in USA.pdf; 2017 Molecular and experimental evidence of multi-resistance of Cercospora beticola field populations to MBC DMI and Qol fungicides.pdf Dr. Beck, I am forwarding this email from Dr. Kahn to Andrea Conrath in case is helpful. Thanks again for your attention to this issue! Scott Scott Herndon Director o fBiotechnology and Regulatory Affairs American Sugarbeet Growers Association 1155 15th Street NW #1100 Washington, DC 20005 202-595-0786 From: Khan, Mohamed [mailto:mohamed.khan@ndsu.edu] Sent: Thursday, May 18, 2017 10:19 AM To: 'Conrath, Andrea B' <Conrath.Andrea@epa.gov> Cc: Scott Herndon <sherndon@americansugarbeet.org>; 'dmaatz@rrvsga.com' <dmaatz@rrvsga.com>; 'Sunseri, Matthew (MDA)' <matthew.sunseri@state.mn.us>; 'jdsauter@nd.gov' <jdsauter@nd.gov>; 'ray.vandriessche@michigansugar.com' <IMCEAINVALIDray+2Evandriessche+40michigansugar+2Ecom@namprd08.prod.outlook.com>; 'Pratt, David1 <David.Pratt@Michigansugar.com>; 'verhougstraeteb@michigan.gov1<verhougstraeteb@michigan.gov>; 'Tyler Grove' <TGrove@crystalsugar.com> Subject: RE: Fungicides - potentially for use in sugarbeets Hello Andrea: I have put together a few pictures on slides/comments which I hope will make it easy to understand why I do not recommend using several products for controlling CLS although they are labeled for use on sugarbeet. I have continued checking with colleagues worldwide who are working with sugarbeet and unfortunately there is no other new chemistry that is effective against CLS, thus our request for chlorothalonil. I am also attaching a paper which demonstrates that C. beticola has developed resistance not only to Qol fungicides, but also to the benzimidazoles and DMI (triazoles) fungicides. It should be noted that in 2016,14.4% of our isolates tested were resistant to TPTH + a DM! + Topsin + Headline and 24.4% of our isolates tested were resistant to triazoles (tetraconazole, Sierra Club v. EPA 18cv3472 NDCA Tier 12 ED 002061 00045177-00001 difenoconazoie+propiconazole, prothioconazoie) (Secor et al. 2017. Sensitivity of Cercospora beticoia to foliar fungicides in 2.016. 2016 Sugarbeet Research and Extension Reports, 47:154-162). We are trying to manage fungicide resistance so that we can have the triazoles as a major tooi for the future and to use other MOAs to target and significantly reduce the Op! resistant C. beticoia population so that we can make the QoS fungicides effective again as we did for TPTH in the 2000s. Once again, thanks for helping us in the past and i hope help will be forthcoming again before it is too late for the economic survival of the sugarbeet industry. Regards, Mohamed. Mohamed F. R. Khan, Ph.D Professor & Extension Sugarbeet Speciaiist Plant Pathoiogy Department NORTH DAKOTA STATE UNIVERSITY AND UNIVERSITY OF MINNESOTA Walster Hali, Room 227 Dept. 7160, PQ Box 6050 Fargo ND 58108-6050 phone: 701 231^8596 - _______________ _ mobile phone:!____I?...___ i fax: 701-231-6186 mohamed.khan@ndsu.edu www.ndsu.edu J *SI I I From: Conrath, Andrea B [maiSto:Canr3th.Andre3@epa.govl Sent: Tuesday, May 16, 2017 4:06 PM To: Matthew Sunseri (matthew.sunseri@state.rnn.us) <mat:thew.sunseri@state,mn,us>; Brian Verhougstraete <verhougstraeteb@michigan.gov>; Sauter, Jerry D. <gdsauter@nd.gQy> Cc: Khan, Mohamed <mohamed.khan@ndsu.edu>; Johnson, Marion <johnson.M3rion@epa.gov>; Maignan, Tawanda <Maignan.Taw3nda@ep3.goy> Subject: Fungicides - potentially for use in sugarbeets Importance: High Hello all - Thank you for making time to discuss the exemption request with us today on such short notice. We will be sharing the evaluation from our Biological and Economic Analysis Division (BEAD) when it is finalized, probably next week. This should help clarify the areas of question with respect to meeting the criteria mandated to determine whether an emergency exemption may be warranted. In the meantime, I wanted to share with you a short list of fungicides that our pathologist identified as potentially being options to explore for Cercospora management in sugarbeets. Please share with the other researcher if appropriate, since I didn't catch their name on our phone call. Sierra Club v. EPA 18cv3472 NDCA Tier 12 ED 002061 00045177-00002 Research from NY for Cercospora leaf spot on table beets (http://www.hort.corney.edu/expo/proceedinas/2016/ProcessingVegetables.Diversjtv%20and%20fungaS%20resistance possible treatments (not necessarily registered). They had good results in trials with a few products that were tested: 1. cyprodinil + difenoconazole (pre-mix product, difenoconazole is already labeled for sugar beet), 2. difenoconazole + benzovindiflupyr (a Group 7 fungicide) [sugar beet currently has a pre-mix Group 7, fluxapyroxad + Group 11 pyraclostrobin, which has resistance), 3. fluazinam Mancozeb provided good results as well (although lack of efficacy is claimed for CLS in sugarbeet). Regards, Andrea Sierra Club v. EPA 18cv3472 NDCA Tier 12 ED 002061 00045177-00003