DUDE, you are THE MAN! You broke everything down so well. I have been confused about fungicide ever since I decided to take on my lawn care on my own the beginning of this years season, I WISH I would’ve come across your page sooner !!!
Just came across your channel tonight. I have been down this rabbit hole for about 7 years now. You are doing a great thing by sharing your knowledge with us enthusiast. I have access to all the professional products I need and you are speaking my language. Thanks for sharing and please keep this going!
The GCSAA article I talked about in the video. It has the synergistic chemical program in it. www.gcsaa.org/docs/default-source/research-and-information/disease/strategies-for-preventing-and-managing-fungicide-resistance.pdf?sfvrsn=2
Really great article. Thanks for sharing it! Will now be trying this synergistic route to battle leaf spot/melting out. Quick question, after applying propicinazole and chlorothalonil together, should that mixture dry on the blade or be watered in immediately? Spray volume would be 1 gallon per 1,000.
What's the deal with chlorothalonil not being approved for home use? I see Daconil has a product at Lowes that is labeled for use on plants/ garden beds but I imagine it could also be used on the lawn right? Maybe the concentration is a little different than the stuff used on golf courses etc.
Years ago due to the overuse they wanted to limit the amount of chlorothalonil on home lawns do you possible carcinogen concerns, particularly for children. It at the time was the #1 fungicide being and the current labeling reduced that.
@GregPhillips.22 do you think it's really as much of a concern as they make it out to be? We certainly have a lot of kid traffic in our yard but every year I have heavy disease pressure and would love to work something else in aside from the propiconazole and azoxy I've been using
Greg, I am confused when it comes to the synergistic approach because if you are suppose to alternate modes of action everytime, why does each mixer for dollar spot contain Banner Max propiconazole?
For residential lawn use you are limited to the fungicides you can use. Propiconazole is one and Thiophanate-methyl is the other. Propiconazole is a systemic fungicide and Thiophanate-methyl is a contact fungicide. You need to alternate fungicide families at least every 3rd application. I explain in more detail in this video. ua-cam.com/video/STSKVT-k4TM/v-deo.htmlsi=0b0QjUEeewx5T6vu
@GregPhillips22 - Did you intend to apply 8 oz/k? Or did you intend 8 oz for your entire 4k sq/ft yard? Looking at the label, I'm thinking it should have been 2 oz/k. The single app max rate for high disease pressure is 5.5 oz/k.
Go by the label. They can vary based on the manufacturer and/or product with the same active ingredient. Some of that depends on the inactive ingredients. Those very by the manufacturer. Some manufacturers have active ingredients that increase the efficiently of the active ingredient. Those can help the product work. What one manufacturer requires may differ from others to get the same performance of the product.
Must have not linked here it is and will put it in the general comments too. www.gcsaa.org/docs/default-source/research-and-information/disease/strategies-for-preventing-and-managing-fungicide-resistance.pdf?sfvrsn=2
Excellent video Greg. Question: I've been adding a surfactant to my Propocanazole/Azoxy combo in my preventive spray jobs. I was under the impression that a foliar app was the generally accepted method, and leaving it on the leaf was proper. I've only had one break-out of fungus, which DiseaseEx cured, but since then, my preventive spraying has been with a surfactant..... I also use a drill with a narrow head (long/5 gal version) paint mixer which really enables me to get a thorough mixture in my Strom 4 gal tank.
I have not had to use a surfactant..likely because I go on the high end of spray volumes. It's more of about getting fungicides to the lower canopy than getting it distributed to the plant. Since most fungicides only move upwards in the plant. I don't think you are doing anything wrong with a surfactant. It is just I have not done that. The paint mixer is a good idea. So long as it does not splash. That would be good with wettable powder formulations. Those can be very difficult to properly agitate.
Likely not however, wanted to give folks some options to help with dollar spot. It's very limited what homeowners can do when they get resistance. I know many superintendents with bentgrass courses which is very susceptible to it found dew removal to be an effective way to prevent the disease, lower fungicide costs and applications.
Can you do a video of what we should be doing to prepare for June's sun and heat pls. I've invested in Turf Titan but is there a better and less pricey solution?
So with a gray leaf spot , or dollar spot on Bermuda , would the 3336 need to be watered in or left on the foliage to treat ? Not the granular , the liquid
Label says 0.1 to 0.25 inches of water. Need to get it off the leaf blade and into the lower parts of the plant. It only moves upwards in the plant. That is why it needs a light watering in.
I wound put out the granular out. Water it in then put the foliar at the proper spray volume. I often mixed fungicides together in a spray tank so putting out both is not a problem.
I’ve watched this a few times. Good lord is there a lot to learn. I looked online to try and figure out why certain fungicides are not for residential use. The information has been diluted and as far as humans and pets fair I am having a hard time finding information. Is there any cost effective way to treat say 20k sqft? It just seems like I’d be spending $500 a year just on fungicides.
@@GregPhillips.22 it’s a mixture of TTTF, KBG, and PRG. I live in SE Wisconsin and that blend is very common. I did a partial renovation and converted a 4500 sqft section of my back to Artimuss TTTF. Treatable lawn is close to 25K sqft.
Doing my due diligence and noticed the Nitriales chemical name was Chlorothanloil (time 6:37). At time 20:59 the chemical name was Chlorothalonil. Was that a typo in the table at time 6:37???
@@GregPhillips.22 So I read the research paper you included and I come away w/ the conclusion that the synergism program is only applicable to the Group 3 fungicides. I didn't see anything about Group 1 (Cleary 3336F) which I have learned should be in rotation to prevent resistance. Does Group 1 not have a synergism chemical? (I may have missed something in the vids) Thanks -Edit...so I looked at the label on 3336F and for Dollar Spot the comments included a statement that tank mixing w/ Chlorothalonil can be utilized. It did not provide any different rate for the 3336 and didn't provide a rate for the Chlorothalonil. Should you use it at the at the label rate or is there any synergistic benefit for a lower rate?
@@jcasey460 Chlorothalonil is not labeled for residential lawns anymore for good reason. And the rate suggested in this video is above the max labelled rate. There plenty of other options for a good fungicide control program that don't include the risk. Generally, for a home lawn, unless you have a high maintenance golf course style maintained lawn, dollar spot can usually be controlled with proper watering and nitrogen use. If not a single app of a dmi like propiconazole will take care of it usually, again paired with proper watering and n use. There are also several multi MOA products, or just rotate to a different MOA every app. It doesn't need to be this complicated for a home lawn IMO.
This is the back pack sprayer that I use. Have had for over 7 years. It's battery powered very nice to have that for large areas. Pd ad amzn.to/4dGpwnY
Heritage fungicide. This is the same as disease EX just in a spray formulation. Pd ad recommend you to read label before purchase label link below. amzn.to/3wyED2l
Stergio systemic pythium control. This can be rotated during the summer months with Heritage or Disease EX or Artavia. Pd ad recommend you to read label before purchase. see label below amzn.to/3ysizXL
Cleary's 3336 in a granular formulation. This is a 3336 that can be put out with a spreader. Pd ad recommend to read label below prior to purchase www.domyown.com/clearys-3336-dg-lite-granular-fungicide-p-1505.html
Pillar G fungicide. This controls nearly all fungus in a granular product . Pd ad recommend you to read label before purchase see label below amzn.to/3UOjOry
This is a generic chlorothalonil fungicide. It is an excellent contact fungicide with low possibility of resistance to fungus. Pd ad recommend you to read label before purchase amzn.to/3V8SYMh
Artavia fungicide this is a generic heritage same active ingredient as Scott's Disease EX and Heritage it is by far the cheapest azoystrobin product. Pd ad recommend to read label prior to purchase see label link below amzn.to/44XxSUs
You are indeed a science evidence based trained agronomist. Not some technician or homeowner experimenting by anecdotal trial and error. You read the literature and know how to analyze and think critically🙏 Keep up the great work. Wishing you great continued success 👍
I appreciate that!!! There are a lot of folks with good intentions but can get folks into trouble. Feel free to spread the word in your social media. If I can help folks it makes me happy!!!
![BEST Lawn FUNGUS TREATMENT - [FUNGICIDE GETS RID of BROWN PATCHES on Lawn]](/img/n.gif)
DUDE, you are THE MAN! You broke everything down so well. I have been confused about fungicide ever since I decided to take on my lawn care on my own the beginning of this years season, I WISH I would’ve come across your page sooner !!!
Wow thanks!! Near retirement so wanting to help.
Just came across your channel tonight. I have been down this rabbit hole for about 7 years now. You are doing a great thing by sharing your knowledge with us enthusiast. I have access to all the professional products I need and you are speaking my language. Thanks for sharing and please keep this going!
Thanks for the feedback!!
Clear and concise. Thank you, Greg.
Glad you liked it
The GCSAA article I talked about in the video. It has the synergistic chemical program in it. www.gcsaa.org/docs/default-source/research-and-information/disease/strategies-for-preventing-and-managing-fungicide-resistance.pdf?sfvrsn=2
Really great article. Thanks for sharing it! Will now be trying this synergistic route to battle leaf spot/melting out. Quick question, after applying propicinazole and chlorothalonil together, should that mixture dry on the blade or be watered in immediately? Spray volume would be 1 gallon per 1,000.
What's the deal with chlorothalonil not being approved for home use? I see Daconil has a product at Lowes that is labeled for use on plants/ garden beds but I imagine it could also be used on the lawn right? Maybe the concentration is a little different than the stuff used on golf courses etc.
Years ago due to the overuse they wanted to limit the amount of chlorothalonil on home lawns do you possible carcinogen concerns, particularly for children. It at the time was the #1 fungicide being and the current labeling reduced that.
@GregPhillips.22 do you think it's really as much of a concern as they make it out to be? We certainly have a lot of kid traffic in our yard but every year I have heavy disease pressure and would love to work something else in aside from the propiconazole and azoxy I've been using
Learned so much from this video. Thank you!
Thanks!!!
Great video. Thanks, Greg.
Glad you enjoyed it
Greg,
I am confused when it comes to the synergistic approach because if you are suppose to alternate modes of action everytime, why does each mixer for dollar spot contain Banner Max propiconazole?
For residential lawn use you are limited to the fungicides you can use. Propiconazole is one and Thiophanate-methyl is the other. Propiconazole is a systemic fungicide and Thiophanate-methyl is a contact fungicide. You need to alternate fungicide families at least every 3rd application. I explain in more detail in this video. ua-cam.com/video/STSKVT-k4TM/v-deo.htmlsi=0b0QjUEeewx5T6vu
@@GregPhillips.22 so homeowners do not have access to the synergistic approach?
@GregPhillips22 - Did you intend to apply 8 oz/k? Or did you intend 8 oz for your entire 4k sq/ft yard? Looking at the label, I'm thinking it should have been 2 oz/k. The single app max rate for high disease pressure is 5.5 oz/k.
Go by the label. They can vary based on the manufacturer and/or product with the same active ingredient. Some of that depends on the inactive ingredients. Those very by the manufacturer. Some manufacturers have active ingredients that increase the efficiently of the active ingredient. Those can help the product work. What one manufacturer requires may differ from others to get the same performance of the product.
Thanks Greg, very helpful! Could you also link to the Synergism information you referenced at the end of the video? Cheers!
Must have not linked here it is and will put it in the general comments too. www.gcsaa.org/docs/default-source/research-and-information/disease/strategies-for-preventing-and-managing-fungicide-resistance.pdf?sfvrsn=2
Excellent video Greg.
Question: I've been adding a surfactant to my Propocanazole/Azoxy combo in my preventive spray jobs. I was under the impression that a foliar app was the generally accepted method, and leaving it on the leaf was proper. I've only had one break-out of fungus, which DiseaseEx cured, but since then, my preventive spraying has been with a surfactant.....
I also use a drill with a narrow head (long/5 gal version) paint mixer which really enables me to get a thorough mixture in my Strom 4 gal tank.
I have not had to use a surfactant..likely because I go on the high end of spray volumes. It's more of about getting fungicides to the lower canopy than getting it distributed to the plant. Since most fungicides only move upwards in the plant. I don't think you are doing anything wrong with a surfactant. It is just I have not done that. The paint mixer is a good idea. So long as it does not splash. That would be good with wettable powder formulations. Those can be very difficult to properly agitate.
Such good info. Thank you!
Glad it was helpful! Thanks for the feedback!!
How would a homeowner drag the lawn in the morning to prevent fungus? Thanks
Likely not however, wanted to give folks some options to help with dollar spot. It's very limited what homeowners can do when they get resistance. I know many superintendents with bentgrass courses which is very susceptible to it found dew removal to be an effective way to prevent the disease, lower fungicide costs and applications.
Can you do a video of what we should be doing to prepare for June's sun and heat pls. I've invested in Turf Titan but is there a better and less pricey solution?
Yep. I am working on a summer program now. This one took a ton of research so tied up my time.
So with a gray leaf spot , or dollar spot on Bermuda , would the 3336 need to be watered in or left on the foliage to treat ? Not the granular , the liquid
Label says 0.1 to 0.25 inches of water. Need to get it off the leaf blade and into the lower parts of the plant. It only moves upwards in the plant. That is why it needs a light watering in.
Can you put down a granual them put a liquid fuguside on top of it? Same day?
I wound put out the granular out. Water it in then put the foliar at the proper spray volume. I often mixed fungicides together in a spray tank so putting out both is not a problem.
What is the reason some fungicides can’t be used in home lawns but are okay for golf courses and commercial
Michigan state article on the subject archive.lib.msu.edu/tic/golfd/article/2003mar47.pdf
I’ve watched this a few times. Good lord is there a lot to learn. I looked online to try and figure out why certain fungicides are not for residential use. The information has been diluted and as far as humans and pets fair I am having a hard time finding information.
Is there any cost effective way to treat say 20k sqft? It just seems like I’d be spending $500 a year just on fungicides.
What kind of grass do you have?
@@GregPhillips.22 it’s a mixture of TTTF, KBG, and PRG. I live in SE Wisconsin and that blend is very common. I did a partial renovation and converted a 4500 sqft section of my back to Artimuss TTTF. Treatable lawn is close to 25K sqft.
Doing my due diligence and noticed the Nitriales chemical name was Chlorothanloil (time 6:37). At time 20:59 the chemical name was Chlorothalonil. Was that a typo in the table at time 6:37???
it is. good catch.. Thanks!
@@GregPhillips.22 So I read the research paper you included and I come away w/ the conclusion that the synergism program is only applicable to the Group 3 fungicides. I didn't see anything about Group 1 (Cleary 3336F) which I have learned should be in rotation to prevent resistance. Does Group 1 not have a synergism chemical? (I may have missed something in the vids) Thanks -Edit...so I looked at the label on 3336F and for Dollar Spot the comments included a statement that tank mixing w/ Chlorothalonil can be utilized. It did not provide any different rate for the 3336 and didn't provide a rate for the Chlorothalonil. Should you use it at the at the label rate or is there any synergistic benefit for a lower rate?
@@jcasey460 Chlorothalonil is not labeled for residential lawns anymore for good reason. And the rate suggested in this video is above the max labelled rate. There plenty of other options for a good fungicide control program that don't include the risk. Generally, for a home lawn, unless you have a high maintenance golf course style maintained lawn, dollar spot can usually be controlled with proper watering and nitrogen use. If not a single app of a dmi like propiconazole will take care of it usually, again paired with proper watering and n use. There are also several multi MOA products, or just rotate to a different MOA every app. It doesn't need to be this complicated for a home lawn IMO.
This is the back pack sprayer that I use. Have had for over 7 years. It's battery powered very nice to have that for large areas. Pd ad amzn.to/4dGpwnY
Solo back pack sprayer. This is an excellent brand back pack sprayer. It's the brand I used commercially on golf courses. Pd ad amzn.to/4bqD2dR
Thank you Greg! New viewer here. I just sent you a lengthy email. I appreciate your help. Rick
Working on it. Give me a day or two.. this is a bit of a riddle.
Awesome! Thank you. Rick
Heritage fungicide. This is the same as disease EX just in a spray formulation. Pd ad recommend you to read label before purchase label link below. amzn.to/3wyED2l
www.greencastonline.com/current-label/heritage
Stergio systemic pythium control. This can be rotated during the summer months with Heritage or Disease EX or Artavia. Pd ad recommend you to read label before purchase. see label below amzn.to/3ysizXL
atticusllc.com/wp-content/uploads/2021/06/Stergo-MX-Specimen.pdf
Cleary's 3336 in a granular formulation. This is a 3336 that can be put out with a spreader. Pd ad recommend to read label below prior to purchase www.domyown.com/clearys-3336-dg-lite-granular-fungicide-p-1505.html
www.domyown.com/msds/Clearys_3336_DG_Lite_Granular_Fungicide_Label_2020.pdf
Pillar G fungicide. This controls nearly all fungus in a granular product . Pd ad recommend you to read label before purchase see label below amzn.to/3UOjOry
www.cdms.net/ldat/ldANQ004.pdf
Cleary's 3336 in a liquid formulation. Pd ad recommend you to read label before purchase see label below amzn.to/3QQlek8
www.spsonline.com/wp-content/themes/awi/files/imagefield_thumbs/3336.pdf
This is a generic chlorothalonil fungicide. It is an excellent contact fungicide with low possibility of resistance to fungus. Pd ad recommend you to read label before purchase amzn.to/3V8SYMh
s3-us-west-1.amazonaws.com/agrian-cg-fs1-production/pdfs/CHLOROTHALONIL_720_SFT_Label.pdf
Scott's Disease EX granular fungicide for pythium and several other fungus. Does not control dollar spot. Pd ad amzn.to/4bqXaN6
OSU chart fungicide families turfdisease.osu.edu/sites/turfdisease/files/imce/Fungicides%20for%20Turfgrass%202020-0227%20TJB%20e.pdf
Bioadbavced fungal control for lawns. This is a hose end sprayer for propicanazole pd ad amzn.to/3wHq10y
This is an in expensive back pack sprayer . If you are on a budget. Pd ad amzn.to/3WOJXJi
Artavia fungicide this is a generic heritage same active ingredient as Scott's Disease EX and Heritage it is by far the cheapest azoystrobin product. Pd ad recommend to read label prior to purchase see label link below amzn.to/44XxSUs
www.domyown.com/msds/Artavia_2_SC_Fungicide_Label_2023.pdf
Gunner fungicide this is the generic Propiconazole fungicide pd ad recommend you to read label before purchase. see label link below amzn.to/3wzoytb
atticusllc.com/wp-content/uploads/2020/08/Gunner-14.3-MEC-Fungicide-Specimen.pdf
You are indeed a science evidence based trained agronomist. Not some technician or homeowner experimenting by anecdotal trial and error. You read the literature and know how to analyze and think critically🙏 Keep up the great work. Wishing you great continued success 👍
I appreciate that!!! There are a lot of folks with good intentions but can get folks into trouble. Feel free to spread the word in your social media. If I can help folks it makes me happy!!!