Talk:Fungicide

Untitled
Please help me correct this if I am doing it wrong. This is my first time editing Wikipedia. I was searching for information and came across this article noting the information is dated. Merely attempting to update the information with recent studies/sources. Envirowar (talk) 13:37, 13 January 2019 (UTC)

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If you want to have a list of Fungicides, then please do so at some article like List of fungicides, not the main article. Thanks, snoyes 07:19, 2 Sep 2004 (UTC)

Why ? I should have thought this was a good thing to have - see article on Insecticides Tomcrisp7 10:36, 26 November 2006 (UTC)

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I wholly disagree with what is written below and pray it is a result of being 12 years dated. Fungicides are used on corn, though it is a disputed practice. Fungicides, per se, are not necessarily genetically modified, but plants have been genetically modified to prevent certain fungal diseases. Systemic fungicides are soil additives that the plant absorbs through its roots system up into the plant itself. And, finally, "Everything is poisonous, it merely depends on the amount." (I don't know who said this originally as it has been replicated in many sources.) Envirowar (talk) 14:00, 13 January 2019 (UTC)

There are problems with this article :

Fungicides are not commonly used on corn (maize) since there are few serious diseases of this crop, and economic results are difficult to obtain from the use of fungicides.

Also, some fungicides are genetically modified ? What utter rubbish. Crop plants can be genetically modified to obtain different results from pesticides, but fungicides ? These are chemicals and therefore contain no genes to be modified ! Astonishing.

Also, systemic fungicides are systemic in the host plant, not the fungus.

In addition, the article is being used as a pesticides scaremongering platform and this is not acceptable.

Tomcrisp7 10:25, 26 November 2006 (UTC)


 * I agree. Most fungicides are no more harmful to humans than salt, and thats a fact I have from a table given in my lectures, which must have come froma reputable source. On the 8th March I have 3 lectures of fungicides (which will have references), but this needs to be changed urgently so I will do what I can now. (a Mentally Efficient Loonies And Nice Insane Elephants creation 19:43, 14 February 2007 (UTC))
 * But what exactly does your lecturer mean? Does s/he mean that to an average person, high salt intake is of greater concern than fungicide residue in food?  This is very different to claiming that all fungicides are no more toxic than salt!  I'm removing the claim, unless we can get a reputable source that states it completely unambiguously.  –Adrian J. Hunter(talk•contribs) 13:06, 25 May 2007 (UTC)
 * No what I meant is that it takes less salt to kill you than it does some fungicides. Million_Moments 16:12, 23 August 2007 (UTC)

Questions Article Should Answer
I am not an expert. These are questions that should be answered for the general reader.--F3meyer 20:01, 19 July 2007 (UTC)
 * Are there general classes of chemicals that are fungicides?
 * How in general do the clases of fungicidal chemicals work?
 * What are a few common names for fungicidal chemicals?

types
What about systemic and protectant fugicides? —Preceding unsigned comment added by 80.254.86.15 (talk) 12:23, 30 December 2007 (UTC)

History
Added a section on the history of fungicide development and use. Could probably use some more information on modern day usage (which I hope to add when I can collect some more research on it) but for now it provides the reasons behind the development of the first major fungicides and the development of synthetic ones CPRI04 (talk) 06:03, 22 December 2008 (UTC)

Resistance
This needs some serious work as it contains errors. Phenylamide (such as metalaxyl and benalaxyl)resistance in potato blight has developed in the UK (I've corrected this), the use of mixtures delayed it at best. Even this may not be correct as it was also linked to the introduction of more virulent strains from Mexico and the spread of phenylamide resistance may be linked more to the spread of these strains than the use of phenylamides. Whether the use of mixtures is a useful strategy for preventing resistance is debatable. There is some evidence from UK Defra/LINK funded work on QoI resistance that suggests it may help. Mathematically it shouldn't work unless there is some interaction between the different components (see the arguments of Mike Shaw, a researcher at Reading). What it will do is ensure that if one component fails you still control the disease.

Another error is that polygenic resistance will revert. Reversion will only happen if there is a fitness penalty, this is probably more likely with monogenic resistance. If I can find references I'll get to work ..... Maccheek (talk) 09:50, 18 March 2009 (UTC)

Natural fungicides
I've tagged this as disputed because it lacks high quality sources. Looking at the sources cited they indicate that these substances do have anti-fungal activity in-vitro but that is very different to them being used (or being safe to use) as fungicides. The section is also WP:UNDUE to be honest, since these are not what the vast majority of fungicides are. SmartSE (talk) 10:09, 8 August 2014 (UTC)
 * I removed everything that wasn't cited to a journal article, but I haven't looked at your claim about these sources not indicating actual usage. I think this kind of content should be held up to WP:MEDRS standards, since this is essentially plant medicine. Do you still think the Types section fails WP:UNDUE? If not, there should be an additional section outlining synthetic fungicides. –LaundryPizza03 ( d c̄ ) 05:46, 17 April 2021 (UTC)

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Non target effects.
A non registered editor recently made an edit about the effects of fungicides on the declining number of bumblebees. It was mainly based on this article from the Royal Society. The piece of information was misplaced in the head of the article, and contained some statements not acceptable for Wikipedia. So I proceeded to relocate the information and suppress the inappropriate part. I see that Smartse has proceeded to remove the information altogether, on grounds that it is not sufficiently backed. He also says that the subject of "non target effects of fungicides should be discussed". I think that this is a subject to be included in this article, but it is not a priority for me at present. If nobody else does it, I maybe will come back.--Auró (talk) 20:30, 31 December 2017 (UTC)

List of common fungicides absent
As it stand right now, there is a list of natural products but no list of common commercial fungicides, creating a weighting problem. Readers probably are interested in a list of the chemicals used as fungicides, similar to the article herbicide. Abductive (reasoning) 02:19, 25 May 2021 (UTC)