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Topic: QoI

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	Fungicides: QoI fungicides
		Quinone outside inhibitor (QoI) fungicides include three fungicide families, the well-known family of strobilurins and two new families, represented by fenamidone and famoxadone.
		QoI fungicides approved for, or in review for, use on field crops in Iowa include strobilurins azoxystrobin, pyraclostrobin and trifloxystrobin, and famoxadone.
		Apply QoI fungicides according to manufacturers' recommendations for the target disease at the specific crop growth stage indicated.
	www.ipm.iastate.edu /ipm/icm/node/496/print (444 words)

	Resistant Pest Management Newsletter (Site not responding. Last check: )
		QoI resistance was detected on 27 July in 1 of 5 fields with early plantings of summer squash and pumpkin (Table 1).
		QoI resistance was detected in all 7 fields where the second bioassay was conducted on 31 Aug, including one field where Nova was used but not QoIs (Tables 1 and 2, Figure 4).
		QoI resistant strains were present at the start of powdery mildew development in 2003 and their frequency increased greatly during the season, efficacy was affected, and they occurred in crops not treated with QoIs.
	whalonlab.msu.edu /rpmnews/vol.13_no.2/research/rpm_research.htm (2226 words)

	QoI - Wikipedia, the free encyclopedia
		QoI, or Quinone outside inhibitors are a group of fungicides used in agriculture.
		QoI are chemical compounds which act at the Quinol outer binding site of the cytochrome bc1 complex.
		QoI's are the resulting fusion of three fungicides families, the well-known family of strobilurins and two new families, represented by fenamidone and famoxadone.
	en.wikipedia.org /wiki/QoI (262 words)

	Frac
		QoI fungicides, applied as tank mix or as a co-formulated mixture with an effective mixture partner, should be used in single or block applications in alternation with fungicides from a different cross-resistance group.
		QoI fungicides are very effective at preventing spore germination and should therefore be used at the early stages of disease development (preventive treatment).
		For QoI mixes in programs in which tank mixes or pre mixes of QoI with mixing partners of a different mode of action are utilized, the number of QoI containing applications should be no more than ½ (50%) of the total number of fungicide application per season.
	www.frac.info /frac/meeting/qolf2007.htm (3027 words)

	Amendments to Statutory Conditions of Use of Quinone outside Inhibitor (QoI) Fungicides - Further Information - News ...
		Given the importance of QoI products in cereal production we feel that it is prudent to take these steps now to try and ensure their continued activity in the future.
		By restricting the number of foliar applications of QoI containing products to two, used specifically in combination with robust doses of effective partner products, the period during which the fungus is under selection pressure to develop resistance is limited.
		By only using QoI fungicides in mixture with other active substances effective against the same disease, any fungi that are resistant to QoI products will be controlled by the other product and will not therefore become dominant in the population.
	www.pesticides.gov.uk /garden.asp?id=567 (1430 words)

	NZPPS Qo Inhibitor (QoI) Management Strategy (Site not responding. Last check: )
		Note: The rapid increase in the number of label claims for QoI use in New Zealand, together with the known high resistance risk, dictates that QoI resistance management guidelines must be strictly adhered to.
		The FRAC QoI working group is concerned with the trend towards the application of decreased dose rates.
		QoIs are not cross-resistant with other fungicide groups, but there is cross-resistance among all the active ingredients within the QoI group.
	www.hortnet.co.nz /publications/nzpps/resistance/qoinhibitor.htm (859 words)

	Gray Leaf Spot Resistance to Strobulurins (Site not responding. Last check: )
		Two outbreaks of gray leaf spot were identified in Indiana in 2001 and one of them was caused by a strain of the pathogen that is resistant to strobulurin (QoI) fungicides.
		QoI fungicides (Heritage and Compass) must be avoided entirely when trying to control QoI resistant gray leaf spot.
		Tall fescue is also susceptible to gray leaf spot, creeping bentgrass is susceptible to dollar spot (and there are other resistance issues to deal with!), zoysia in southern IN is susceptible to zoysia patch and bermudagrass is susceptible to winterkill.
	www.agry.purdue.edu /turf/tips/2002/gray416.htm (563 words)

	Age Man
		This was desperate attempt to stave off the time of the Passing by defeating the "favored" children of the Wyrm, the Qoi.
		Though the elves acquitted themselves magnificently, bringing the Qoi to the brink of extinction for the first time in seven millennia, they were slowly driven back as the powers of their Gods failed them.
		It was their contention that these 'lesser' races were born of Rhan and not of the collective conscience of the Four Winds.
	users.adelphia.net /~zadularia/page25.html (1039 words)

	IngentaConnect Effect of dose rate and mixtures of fungicides on selection for Q... (Site not responding. Last check: )
		Resistance to QoI fungicides (strobilurins, famoxadone and fenamidone) in populations of Plasmopara viticola (Berk & Curt) Berlese & de Toni developed soon after their introduction in France and Italy.
		The selection pressure resulting from QoI fungicides applied alone or in mixtures with non-QoI fungicides was investigated in whole plant experiments under controlled conditions.
		Mixture experiments indicated that selection pressure was affected most by the dose of the QoI fungicide and the nature of the partner fungicide.
	www.ingentaconnect.com /content/jws/ps/2006/00000062/00000002/art00012 (360 words)

	Downy Mildew in Cucurbits: Occurrence of Qoi Resistance in the USA and Impact on Managing Disease
		Downy Mildew in Cucurbits: Occurrence of Qoi Resistance in the USA and Impact on Managing Disease ============================================================== Strains of the cucurbit downy mildew fungus resistant to QoI (also known as strobilurin) fungicides were detected in GA and NC in fall 2004 and in FL in spring 2005.
		Non-QoI fungicides labeled for this disease must be combined and alternated with QoI fungicides (a) to reduce selection of resistant strains and (b) to protect against loss if resistance does occur and affect efficacy of the QoI fungicides.
		It is critical to know what fungicides contain an active ingredient in the QoI fungicide group, which is Group 11 in the system being used by EPA and the Ag Chemical industry.
	vegdis.cas.psu.edu /03Diseases/D104.html (686 words)

	Fungicide Resistance Management Strategies, PSD news release 2003
		QoI products not already containing another active substance must always be used in mixture with a product containing another active substance that is not from the QoI group and is recommended for control of the same disease.
		QoI products should be used preventatively or as early as possible in the disease cycle.
		† QoI active substances currently registered in the UK are azoxystrobin, famoxadone, fenamidone, kresoxim-methyl, picoxystrobin, dimoxystrobin, pyraclostrobin and trifloxystrobin.
	www.pesticides.gov.uk /garden.asp?id=942 (489 words)

	Dakota Farmer
		These data support observations by some chickpea producers that QoI fungicides are not as effective as they used to be in controlling Ascochyta blight and indicate the pathogen causing Ascochyta blight is resistant to QoI fungicides.
		These results have led researchers at NDSU to recommend that QoI fungicides not be used on chickpea in North Dakota in 2007.
		To stop or slow the progress of fungicide resistance, and in the hopes that the QoI fungicides can be used again in the future for Ascochyta disease control, avoiding the use of any QoI fungicide on chickpea alone or in combination with other chemistries this year is important.
	dakotafarmer.com /index.aspx?ascxid=fpStory&fpsid=28592&fpstid=2 (611 words)

	QoI - Wikipédia
		Les QoI, ou Quinone outside inhibitors sont un groupe de produits chimiques utilisés en agriculture.
		Les QoI sont des fongicides qui agissent comme inhibiteurs du site d'oxydation du coenzyme Q situé sur la face externe du cytochrome b.
		Les QoI résultent de la fusion de trois familles de fongicides, la famille bien connue des strobilurines et de deux nouvelles familles représentées par la fenamidone et la famoxadone.
	fr.wikipedia.org /wiki/QoI (282 words)

	Scientific Commons: Occurrence and distribution of resistance to QoI fungicides in populations of Podosphaera fusca in ...
		Occurrence and distribution of resistance to QoI fungicides in populations of Podosphaera fusca in south central Spain (2006)
		A survey of P. fusca QoI resistance was carried out in different provinces located in the south central area of Spain during the cucurbit growing seasons in 2002, 2003 and 2004.
		Examination of a collection of 250 isolates for QoI resistance revealed that 32% were resistant to the three fungicides tested; the provinces of Ciudad Real, CÃ³rdoba and Murcia being the locations with the highest frequencies of resistance (44â“74%).
	en.scientificcommons.org /34598341 (327 words)

	At Least Two Origins of Fungicide Resistance in Grapevine Downy Mildew Populations -- Chen et al. 73 (16): 5162 -- ...
		Within the circles, QoI fungicide resistance haplotypes (IR and IIR) are represented by fl, and sensitive haplotypes (IS and IIS) by white.
		Field resistance to strobilurin (Q(o)I) fungicides in Pyricularia grisea caused by mutations in the mitochondrial cytochrome b gene.
		Resistance to QoI (strobilurin-like) fungicides in isolates of Pyricularia grisea from perennial ryegrass.
	aem.asm.org /cgi/content/full/73/16/5162 (6187 words)

	Downy Mildew in Cucurbits: Occurrence of Qoi Resistance in the USA and Impact on Managing Disease
		Downy Mildew in Cucurbits: Occurrence of Qoi Resistance in the USA and Impact on Managing Disease ============================================================== Strains of the cucurbit downy mildew fungus resistant to QoI (also known as strobilurin) fungicides were detected in GA and NC in fall 2004 and in FL in spring 2005.
		Non-QoI fungicides labeled for this disease must be combined and alternated with QoI fungicides (a) to reduce selection of resistant strains and (b) to protect against loss if resistance does occur and affect efficacy of the QoI fungicides.
		It is critical to know what fungicides contain an active ingredient in the QoI fungicide group, which is Group 11 in the system being used by EPA and the Ag Chemical industry.
	www.ppath.cas.psu.edu /EXTENSION/VEGDIS/03Diseases/D104.html (686 words)

	VegNet Vol
		The weather conditions in GA and NC during that time greatly favored a rapid development of cucurbit downy mildew, and this had a negative influence on the level of DM control expected from all fungicides.
		Therefore it is uncertain as to whether the mutation was the full cause, a partial cause, or not a cause at all in the performance concerns of QoI fungicides against cucurbit DM in the fall of 2004.
		Recommendations for the 2005 season include tank mixing all QoI fungicides (FRAC group 11) for Downy mildew and/or Powdery Mildew control on cucurbits with non-QoI fungicides (protectants, M) when either disease is the priority of the spray program.
	www.ag.ohio-state.edu /~vegnet/news/vnew0705.htm (2009 words)

	QoISN'08
		QoI, broadly speaking, represents a level of confidence that may be placed on information.
		It touches every part of the end-to-end flow of sensor-derived information, from the sensors themselves and the observation data they produce to the various fusion layers that process these data and eventually to the applications (and their users) that use them.
		QoI impact at the application level (e.g., detection-based decision making and surveillance analysis)
	www.cse.psu.edu /IEEEMASS08/qoisn.htm (367 words)

	North Carolina Pest News
		There is a danger to use the QoI fungicides too much and resistance could develop in the pathogen population.
		Use the following rules to develop a spray program: Where QoI fungicide products are applied solo, do not exceed 33 percent of the total number of sprays or a maximum of 4 during the season.
		Where mixtures (co-formulations or tank mixes such as a QoI + captan) are used do not exceed 50 percent of the total number of sprays (should be a maximum of about 5 for strawberries).
	ipm.ncsu.edu /current_ipm/08PestNews/08News3/pestnews.html (3302 words)

	Making a Name Change or Choosing a Baby Name - What you need to know about name meanings
		Although the name Qoi creates the urge to be reliable and responsible, we emphasize that it causes a restless intensity that defies relaxation.
		The name of Qoi creates a restless, creative nature that takes you into many ventures, but does not allow you to see things through to a satisfactory completion.
		Yours is a versatile, musical, artistic, but independent nature and you must have the freedom to express your creative ideas and abilities to be happy.
	www.kabalarians.com /Female/qoi.htm (459 words)

	QoI fungicides - Superintendents' Korner - 2001-11-03
		I was just reading the article in Golf Course Management entitled "Resistance to QoI Fungicides in Gray Leaf Spot" by Paul Vincelli and Ed Dixon from University of Kentucky (November 2002, pages 49-53).
		Some of you may not be familiar with the QoI terminology.
		The Qo is part of the Q-cycle found in mitochondria respiration (cytochrome system where electron transport occurs).
	hcs.osu.edu /sk/notes/detail.lasso?id=92 (160 words)

	VegNet Vol
		The weather conditions in GA and NC during that time greatly favored a rapid development of cucurbit downy mildew, and this had a negative influence on the level of DM control expected from all fungicides.
		Therefore it is uncertain as to whether the mutation was the full cause, a partial cause, or not a cause at all in the performance concerns of QoI fungicides against cucurbit DM in the fall of 2004.
		Recommendations for the 2005 season include tank mixing all QoI fungicides (FRAC group 11) for Downy mildew and/or Powdery Mildew control on cucurbits with non-QoI fungicides (protectants, M) when either disease is the priority of the spray program.
	ohioline.osu.edu /~vegnet/news/vnew0705.htm (2009 words)

	Mefco's Random Joke Server\|Funny Stories
		A very large government contractor (VLGC) is involved in a proxy fight with a questionable outside investor (QOI).
		The QOI published the following in a large number of big city newspapers (BCNs).
		It quotes statements from the VLGC's annual statement and the QOI's translation...
	www.randomjoke.com /funny/clarification.php (390 words)

	[No title]
		In June, we reported on the emergence of strains of Pyricularia grisea from perennial ryegrass with resistance to QoI (strobilurin-like) fungicides.
		As part of an effort to investigate control approaches for these resistant strains, we conducted a field trial to test the hypothesis that tank-mixes of QoI fungicides (Heritage or Insignia) with chlorothalonil (Daconil Ultrex) would provide better disease control of QoI- resistant strains than would chlorothalonil alone.
		This was based on a postulated synergism between QoI fungicides and chlorothalonil against QoI-resistant strains.
	www.uky.edu /Ag/kpn/kpn_01/pn011001.htm (3095 words)

	APS Education Center - Advanced Topics - QoI (Strobilurin) Fungicides: Benefits and Risks.
		A proper mixing partner is one that provides satisfactory disease control when used alone on the target disease.
		Also, the mixing partner must be from some fungicide family other than the QoI group.
		Tank-mixing fungicides from the same chemical family does nothing to reduce the risk of fungicide resistance.
	www.apsnet.org /education/AdvancedPlantPath/Topics/Strobilurin/top.htm (2721 words)

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