Practical experience with antiresistance strategies in the fungicides control of potato late blight

P. Doležal, E. Hausvater and V. Táborský
Additional contact information
P. Doležal: *Potato Research Institute, 580 01 Havlíčkův Brod, Czech Republic
E. Hausvater: *Potato Research Institute, 580 01 Havlíčkův Brod, Czech Republic
V. Táborský: *Potato Research Institute, 580 01 Havlíčkův Brod, Czech Republic

Plant Protection Science, 2002, vol. 38, issue SI2-6thConfEFPP, 684-687

Abstract: Pathogens with rapid reproductive cycles, producing large number wind-spread dispersed infection propagules like sporangiospores, are more likely to pose problems of resistance than slowly reproducing pathogens, which are dispersed over only short distances. Phytophthora infestans, is highly adaptable pathogen capable of exerting high disease pressure on crop, and develop resistance to phenylamid fungicide methalaxyl in the potato crop in Europe (1981-1984). Metalaxyl was then reintroduced for use in mixtures coformulated with multisite compounds, and the proportion of resistance strains "subpopulations" rose again, and albeit to a level lower than at the outset. The use of metalaxyl on seed crops, with the possibility of resistance being carried over the next season. Current recommendations are to use alternative multiside fungicides on potato crops. Our results illustrate the importance of understanding pathogen epidemiology in the management of fungicide resistance.

Keywords: chemical control; Phytophthora infestans; cost/benefits (search for similar items in EconPapers)
Date: 2002
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://pps.agriculturejournals.cz/doi/10.17221/10590-PPS.html (text/html)
http://pps.agriculturejournals.cz/doi/10.17221/10590-PPS.pdf (application/pdf)
free of charge

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpps:v:38:y:2002:i:si2-6thconfefpp:id:10590-pps

DOI: 10.17221/10590-PPS

Access Statistics for this article

Plant Protection Science is currently edited by Ing. Eva Karská, (Executive Editor PPS)

More articles in Plant Protection Science from Czech Academy of Agricultural Sciences
Bibliographic data for series maintained by Ivo Andrle ().