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Duckweed in pond
I should probably try the ponds group, but I don't subscribe to it so I
thought I'd try here first. We have a pond, slightly less than 1/4 acre, which has a serious duckweed infestation issue. Last year when we took over the property, it looked like a golf green. This year we put in a floating fountain, but the duckweed is still fighting hard, which sometimes clogs the fountain. I fear by fall it will be about as bad as last year. Pulling the stuff out manually is like draining the ocean with a shotglass. So I fear I'll have to resort to chemical means. So my questions: 1) In doing surfing, it seems that Sonar is the chemical to use, but it's $$$EXPENSIVE$$$ (I actually saw it for $1900 a gallon!) Second choice is Reward, which is still expensive but more like $100 a gallon. Anyone have any experience with this stuff? Does it work? 2) If I *do* chemically treat with Reward, will I have to do it every year? Or will tackling the problem this year (or a few years) get rid of it for the most part? Surfing for info on ponds is difficult, since most postings consider "ponds" to be like 500 gallons, and ours is much larger. Thanks! -Tim |
Duckweed in pond
"Tim Fischer" wrote:
I should probably try the ponds group, but I don't subscribe to it so I thought I'd try here first. We have a pond, slightly less than 1/4 acre, which has a serious duckweed infestation issue. Last year when we took over the property, it looked like a golf green. This year we put in a floating fountain, but the duckweed is still fighting hard, which sometimes clogs the fountain. I fear by fall it will be about as bad as last year. Pulling the stuff out manually is like draining the ocean with a shotglass. So I fear I'll have to resort to chemical means. So my questions: 1) In doing surfing, it seems that Sonar is the chemical to use, but it's $$$EXPENSIVE$$$ (I actually saw it for $1900 a gallon!) Second choice is Reward, which is still expensive but more like $100 a gallon. Anyone have any experience with this stuff? Does it work? 2) If I *do* chemically treat with Reward, will I have to do it every year? Or will tackling the problem this year (or a few years) get rid of it for the most part? Surfing for info on ponds is difficult, since most postings consider "ponds" to be like 500 gallons, and ours is much larger. Thanks! -Tim Hi Tim, this isn't my area of expertise but I did a google search and came up with this product. It appears less expensive than the products you mentioned, but I'm not sure after you figure the coverage per gallon. Anyway, here's a link. http://tinyurl.com/d8mx -- GO# 40 ---------------------------------------------------------------------- http://NewsReader.Com/ 50 GB/Month |
Duckweed in pond
wrote in message ... "Tim Fischer" wrote: I should probably try the ponds group, but I don't subscribe to it so I thought I'd try here first. We have a pond, slightly less than 1/4 acre, which has a serious duckweed infestation issue. Last year when we took over the property, it looked like a golf green. This year we put in a floating fountain, but the duckweed is still fighting hard, which sometimes clogs the fountain. I fear by fall it will be about as bad as last year. Pulling the stuff out manually is like draining the ocean with a shotglass. So I fear I'll have to resort to chemical means. So my questions: 1) In doing surfing, it seems that Sonar is the chemical to use, but it's $$$EXPENSIVE$$$ (I actually saw it for $1900 a gallon!) Second choice is Reward, which is still expensive but more like $100 a gallon. Anyone have any experience with this stuff? Does it work? 2) If I *do* chemically treat with Reward, will I have to do it every year? Or will tackling the problem this year (or a few years) get rid of it for the most part? Surfing for info on ponds is difficult, since most postings consider "ponds" to be like 500 gallons, and ours is much larger. Thanks! -Tim Hi Tim, this isn't my area of expertise but I did a google search and came up with this product. It appears less expensive than the products you mentioned, but I'm not sure after you figure the coverage per gallon. Anyway, here's a link. http://tinyurl.com/d8mx Or, you could get a few ducks. It works great and if you like ducks, can be nice. The down side is, that if you ever get rid of the ducks, it will grow back twice as fast. And there is the duck poop to consider. Judy |
Duckweed in pond
"Judy" wrote in message
... Or, you could get a few ducks. It works great and if you like ducks, can be nice. The down side is, that if you ever get rid of the ducks, it will grow back twice as fast. And there is the duck poop to consider. We have plenty of ducks flying in and out. Alas, they don't eat nearly enough duckweed... -Tim |
Duckweed in pond
I've sprayed for duckweed in the past and had good luck with Diquat.
A word of caution, if you have fish treat half the pond and wait a week before doing the other half. The Diquat doesn't hurt the fish (when used according to the label) but the decomposing weeds will deplete oxygen from the water. On Mon, 02 Jun 2003 02:35:08 GMT, "Tim Fischer" wrote: I should probably try the ponds group, but I don't subscribe to it so I thought I'd try here first. We have a pond, slightly less than 1/4 acre, which has a serious duckweed infestation issue. Last year when we took over the property, it looked like a golf green. This year we put in a floating fountain, but the duckweed is still fighting hard, which sometimes clogs the fountain. I fear by fall it will be about as bad as last year. Pulling the stuff out manually is like draining the ocean with a shotglass. So I fear I'll have to resort to chemical means. So my questions: 1) In doing surfing, it seems that Sonar is the chemical to use, but it's $$$EXPENSIVE$$$ (I actually saw it for $1900 a gallon!) Second choice is Reward, which is still expensive but more like $100 a gallon. Anyone have any experience with this stuff? Does it work? 2) If I *do* chemically treat with Reward, will I have to do it every year? Or will tackling the problem this year (or a few years) get rid of it for the most part? Surfing for info on ponds is difficult, since most postings consider "ponds" to be like 500 gallons, and ours is much larger. Thanks! -Tim |
Duckweed in pond
wrote in message
... Did you check out that product, Tim? That $199 is for a case(4 gallons) of concentrate. (plus the friggin shipping) We ended up signing a contract for a local service to take care of the pond this year. It was $360 for the summer, which handles all submersed weeds, algae, and duckweed. They claim they will come by every 3-4 weeks to check up and do treatments when necessary. This was a bit more spendy than I had hoped for, but at least we should have a clear pond in a few weeks. And maybe I can watch them apply it and gather some knowledge to do it ourselves in a future year. Thanks (to all) for the tips though! -Tim |
Duckweed in pond
Wow that sounds like a good deal. Given the cost of copper sulfate,
Rodeo, and Diquat you will probably come out ahead of the game. One suggestion......put in a fountain or waterfall or even just some stupid pipe shooting water into the pond. The aereationsp greatly reduces the need for weed and algae control. On Fri, 06 Jun 2003 03:14:04 GMT, "Tim Fischer" wrote: wrote in message ... Did you check out that product, Tim? That $199 is for a case(4 gallons) of concentrate. (plus the friggin shipping) We ended up signing a contract for a local service to take care of the pond this year. It was $360 for the summer, which handles all submersed weeds, algae, and duckweed. They claim they will come by every 3-4 weeks to check up and do treatments when necessary. This was a bit more spendy than I had hoped for, but at least we should have a clear pond in a few weeks. And maybe I can watch them apply it and gather some knowledge to do it ourselves in a future year. Thanks (to all) for the tips though! -Tim |
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