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Phytopathology 101, 10611073. Phytophthora blight of pepper and its control in Korea. 6 FRAC (2020). 0000000016 00000 n
The mycelial growth of all P. capsici isolates was measured on PDA plates amended with two series of fluopicolide concentrations (0, 0.05, 0.1, 0.25, 0.5, and 1 g/ml for wild-type sensitive isolates and 0, 5, 10, 20, 50, and 100 g/ml for resistant isolates). 2022 Valent U.S.A. LLC - All Rights Reserved. Kim, E. S., and Hwang, B. K. (1992). %PDF-1.6
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Western Australian broccoli grower Brad Ipsen knows only too well the dangers of rainfall, high levels of cloud cover and humidity and, hence, the need for a good spray management program to safeguard his crops. Lamour, K. H., and Hausbeck, M. K. (2000). Do not apply more than 2 applications of Adorn Fungicide per cropping cycle. 0>6{\fUl3z$;Hpb\/
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Phytophthora capsici on vegetable crops: research progress and management challenges. 
Other biological characteristics of resistant isolates are also indispensable for evaluating fungicide resistance risks. Sensitivity to fluopicolide and biological characteristics of resistant mutants of Phytophthora capsici in Chongqing. 0000004955 00000 n
For citrus, Presidio Fungicide is targeted chemistry that protects citrus threatened by Phytophthora root rot and foot rot. See label for complete application precautions and restrictions, EPA REG. These cookies do not store any personal information. FAMILY:carbamate The soil surface around each seedling was inoculated by adding 3 ml of zoospore suspension (2 104 zoospores/ml) of resistant mutants or their parental isolates. The isolate A1 was obtained from Michigan and used for comparison with Chinese isolates. Because when your operation is sustainable, we all win. 2016YFD0201305). Berl. 0000028480 00000 n
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No positive cross-resistance exists between fluopicolide and other anti-oomycete fungicides, except for fluopimomide due to its similar structure. The fungicide final concentrations are listed in Table 1, and the DMSO final concentration was adjusted to 0.1% (v/v). This may be related to the suspected target of fluopicolide, a spectrin-like protein (Toquin et al., 2006), which may play an important role in maintaining the stability of the cell membrane. View our Privacy Policy to learn more. Additionally, the cross-resistance result indicated that the sensitivity of fluopicolide did not correlate with other oomycete fungicides, apart from fluopimomide (LH-2010A). c'%Zd8G`'e{;]>gdooXUno{;p]go;kiEA(1[U;fBJ/FZ8HvE9Z|lUFy=fWaF#U]9nVd]IUkVcYX8~>tU+tI#6(q6Z_Eab6)\:9ty!]|2m,/EN/!)[~S:YV_rMAJ=:B4M You also have the option to opt-out of these cookies.
Fitness of Phytophthora capsici fluopicolide-resistant mutants and wild-type parents. 
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Sensitivity of Phytophthora capsici to fluopicolide in different developmental stages. By agreeing you accept the use of cookies in accordance with our, Downy Mildew, Phytophthora, and Pythium Control Fact Sheet, Impatiens Downy Midlew Control Fact Sheet, Excellent control of downy mildew, Phytophthora and Pythium, Tank-mix to use as a resistance management tool. 
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Sci. The cystospore germination rates of mutants obtained from BYA5, Pc1723, LP3, and JA8 were not significantly different from the parents, except for RFJ-4 and RFB-3, which produced significantly fewer germinated cystospores. Adorn Fungicide prevents water mold, root rot, stem rot, crown rot and damping off caused by oomycete diseases in ornamental plants. Plant Dis. Sporangial production was assayed by counting the number of sporangia per square centimeter of V8 agar. hbbd```b``" 
70-s/t B@&%bT55 Plant Dis. The factor of sensitivity change (FSC) was calculated as the ratio of RF values of the 10th subculture relative to that of the first. & Toni. 13, 329337. Baseline sensitivity and resistance-risk assessment of Phytophthora capsici to iprovalicarb. Acta Phytopathol. The baseline sensitivity of P. capsici to fluopicolide has been established by using 146 field isolates from 28 provinces throughout China from 2006 to 2014, with a unimodal distribution of low EC50 values (with a mean of 0.17 g/ml). `v TL`0i"A$kd@$G"9#@$?XGz83tA$K,H2HfrD*'H/720
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(2013). All statistical analyses were conducted using DPS software ver. Studies have reported that the intracellular substances of hyphae or zoospores are leaked after fluopicolide treatment in P. capsici and P. infestans, and the potential target protein of fluopicolide is speculated to be a spectrin-like protein (Toquin et al., 2006; Jackson et al., 2010; FRAC, 2020), but this remains unclear. The first step is to establish a baseline sensitivity for pathogen populations containing a large number of isolates (Russell, 2004). W The initial RFs of 44 mutants ranged from 6.21 to 559.90 (Supplementary Table S2). Resistance to the novel fungicide pyrimorph in Phytophthora capsici: risk assessment and detection of point mutations in CesA3 that confer resistance. We would like to thank Prof. Jianjun Hao (The University of Maine) for providing P. capsici isolate A1. The objective of this study was to assess the resistance risk of P. capsici to fluopicolide in China in relation to the above aspects. After incubation at 25C in the dark for 5 days, the faster-growing colonies were gradually transferred to new PDA plates amended with the same or higher fluopicolide concentrations (5, 10, 20, and 50 g/ml). 77, 588591.
doi: 10.1094/PHYTO-12-09-0351. The narrow range and low EC50 values indicated that all wild-type isolates were sensitive to fluopicolide. Plant Dis.
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/R0 gs Received: 29 November 2019; Accepted: 24 January 2020;Published: 03 March 2020. I understand that I can unsubscribe at any time by clicking 'unsubscribe' at the bottom of the emails I receive. 
Zhai et al. Do not apply sequentially, alternate with another fungicide registered for use on ornamentals. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. 88 0 obj<>stream
After 10 transfers on fungicide-free PDA media, EC50 values of all mutants derived from parental isolates BYA5, LP3, 12-11, and highly resistant mutants of JA8 were increased. 0000017777 00000 n
Z., Guo, J. G., et al. Fluopicolide is a benzamide plant fungicide discovered and patented by AgrEvo UK Limited (since 2002 being a part of Bayer Crop Science) in 1999. doi: 10.1111/j.1364-3703.2011.00754.x. Giornate Fitopatologiche 2, 135140. Department of Medicine, University of Perugia, Italy, Department of Experimental Medicine and Surgery, Faculty of Medicine and Surgery, University of Rome Tor Vergata, Italy, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Bangladesh. Keeping disease pressure under control has been a cornerstone of high-quality vegetable production for the Taylor family for 75 years. 44, 8896. This excellent adaptability indicates that the resistant mutants would be more competitive to infect crops successfully in fields and demonstrates that the subpopulations could successfully colonize, reproduce, and dominate in response to the selection pressure of fluopicolide. 2015-11-04T10:13:05.000-05:00 Tampa, FL33634 Concentrations used to determine the sensitivities of fluopicolide-sensitive and fluopicolide-resistant Phytophthora capsici isolates to various fungicides. 
doi: 10.1016/j.cropro.2010.08.001. 15, 664676. Necessary cookies are absolutely essential for the website to function properly. Plant Dis. Oomycetes morphologically resemble fungi but are phylogenetically distant from true fungi (Baldauf et al., 2000; Tyler et al., 2006). This suggests that fluopicolide should be applied limitedly in each season, or used alternately and mixed with other oomycete fungicides (except fluopimomide), to reduce or prevent rapid resistance development in fields. 2015-11-04T10:12:03.000-05:00 EZ ?lthD8ZYVzj~z=VTXAAF3X\ZLc6FR 1`kOUAayUvVYgoLG/8/{z3QWH?tYTfZAw6O=6jelCiJlo}(
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R B$[]1 PLoS One 8:e56513. PMRA Plant Pathol. The resistance stability of fluopicolide-resistant isolates was assessed after 10 successive transfers on fungicide-free PDA plates. Wang et al. Induction and characteristics of Phytophthora capsici isolates resistant to fluopicolide. Zhang, X. M., Jiang, H., and Hao, J. J. 24850 Old 41 Ste 7 This study determined the sensitivity of P. capsici to fluopicolide and found that fluopicolide had substantial activity against mycelial growth, sporangia formation, and zoospore release and motility. See label for complete application rates and recommendations. Lu, X. H., Hausbeck, M. K., Liu, X. L., and Hao, J. J. and as Bayer is a global business my personal information may be stored overseas. Table 1. Fungicides play the most important role in controlling P. capsici, combined with farming operations and biological control measures (Hwang and Kim, 1995; Hausbeck and Lamour, 2004). 
infinito fungicide bayer control crop Your privacy is important to us. hbbd```b``kd Your rep is here to help answer any question you may have.
Adobe PDF Library 11.0 (2008). Evaluation of the risk of development of fluopicolide resistance in Phytophthora erythroseptica. For pot sizes other than those listed, adjust volume accordingly. Containing two modes of action for foliar application, INFINITO is also an ideal resistance management alternative for growers, INFINITO has two active ingredients that work together to deliver the ultimate protection against downy mildew. 0000007671 00000 n 0000004526 00000 n A new mode of action for fluopicolide: modification of the cellular localization of spectrin-like protein. doi: 10.1094/PDIS-02-18-0366-RE, Keywords: Phytophthora capsici, fluopicolide, development stages, biological traits, resistance risk assessment, Citation: Wu J, Xue Z, Miao J, Zhang F, Gao X and Liu X (2020) Sensitivity of Different Developmental Stages and Resistance Risk Assessment of Phytophthora capsici to Fluopicolide in China. (2010). 95, 15351541. Plant Pathol. dkA$
Pestic. Pembroke Park, FL33023 Sporangial production and zoospore release of mutants and parental isolates were measured as described above (Miller, 1955; Lu et al., 2010). No positive cross-resistance exists between fluopicolide and other anti-oomycete fungicides, except for fluopimomide. For instance, the resistance of P. capsici to phenylamide fungicides (e.g., metalaxyl or mefenoxam), used widely for many years around the world, has been reported universally (Luo et al., 1999; Lamour and Hausbeck, 2000; Parra and Ristaino, 2001; Silvar et al., 2006; Dunn et al., 2010; Quesada-Ocampo et al., 2011). HWKsFWH #^$R$FkF HG` y$-Qg_W~PnzolJ/Wm'jy"\.$LfK1OD[WwuYrEo)]~Xl^D,]VPb0[e!>~pyl~{^UXB$E%2\WjV BEV\kMa].SscVdgbqW2)"RRbU]2%Y}e*kJe4w Phytopathology 2, 401408.
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Plant Dis. At a concentration of 10 g/ml, all zoospores lost motility and then gradually lysed after 10 min. contact this location, Window Classics-Sarasota 
Phytophthora genome sequences uncover evolutionary origins and mechanisms of pathogenesis. 
:wFY-[UYya|#0MP8) ET Wild type sensitivity and mutation analysis for resistance risk to fluopicolide in Phytophthora capsici. Available at: https://www.frac.info/docs/default-source/publications/frac-code-list/frac-code-list-2020-final.pdf?sfvrsn=8301499a_2. This step was repeated until there was no significant difference in the linear growth of resistant colonies on the PDA plates with or without fluopicolide. Luo, H. R., Xie, B. Y., Ma, F. H., and Zhu, G. R. (1999). strobe )Fl.fI,jifj'-XfO@RxfiJ(4NkNHrh
1sLy+ f t3( 6N\ap"F mhh`h`````bw4p4@y )h`=@F`t0@@H J1i@l`2B;:a0$`\~:Hs800rj23izf]:2#.ns!{=/@M>i)l:Hc @
Distribution of fluopicolide sensitivity of 146 Phytophthora capsici isolates.
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Phytopathology 100, 11621168. Sci. In this study, the biological characteristics, which more fully reflect the biological viability of the mutants, of a total of 15 mutants with different resistance levels and six corresponding parental strains were determined. doi: 10.1094/PDIS.2001.85.10.1069, Quesada-Ocampo, L. M., Granke, L. L., Mercier, M. R., Olsen, J., and Hausbeck, M. K. (2011). 
Mol. Cymoxanil (98% AI, Xinyi Agrochemical, Co., Ltd., Jiangsu, China) was dissolved in DMSO for stock solutions (105 g/ml) and stored at 4C. uuid:4d46dd25-38a7-4aae-b892-aeb4a5d78166 Kousik, C. S., and Keinath, A. P. (2007). The hyphal growth rates of RFB-1, RF1723-1, and RFL-2 were not significantly different from those of their parental strains, and the hyphal growth rates of RFJ-4, RFJ-7, RFJ-9, RFJ-12, and RFL-3 were significantly slower than those of their parental strains, while the growth rate of other mutants was significantly faster, at 30C. NO. doi: 10.1094/PDIS-02-12-0211-FE, Grimmer, M. K., van den Bosch, F., Powers, S. J., and Paveley, N. D. (2014).