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Yesterday at 03:05 AM
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Joined: Nov 2009
Posts: 108
Lunker
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Lunker
Joined: Nov 2009
Posts: 108 |
Is there anything that you can spray on duckweed that only kills duckweed? Thanks
"If people concentrated on the really important things in life, there'd be a shortage of fishing poles." Doug Larson 
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Joined: Nov 2007
Posts: 227
Lunker
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Lunker
Joined: Nov 2007
Posts: 227 |
Our engineers tell us that goldfish will control duckweed. They are occasionally stocked in our wastewater lagoons for this specific purpose. I have put duckweed in my wine barrel pond with goldfish and it doesn't last more than a week. Then again, i never feed them so their probably awefully hungry. Good luck.
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Joined: Jan 2010
Posts: 914
Lunker
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Lunker
Joined: Jan 2010
Posts: 914 |
Is there anything that you can spray on duckweed that only kills duckweed? Thanks Almost a trick question. First, the most effective treatment for duckweed with a herbicide is not sprayed on at all. You would either use granular or liqoud, mixed in the pond slow release Fluridone is best. And no, there is no herbicide that I know of that is duckweed selective. In fact, I have seen many used improperly, killing everything but the duckweed.
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Joined: Mar 2005
Posts: 22,037 Likes: 483
Moderator Hall of Fame 2014  Lunker
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Moderator Hall of Fame 2014 Lunker
Joined: Mar 2005
Posts: 22,037 Likes: 483 |
I agree with PF. DW is the most difficult weed I have dealt with. 
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