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BS: Duck Weed... Grrrrrrrrrrrrr....
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Subject: BS: Duck Weed... Grrrrrrrrrrrrr.... From: Bobert Date: 22 Jun 12 - 08:16 PM Well, I got the duck weed on my 3/4 acre pond ... I'm trying to net it and am kinda getting it but it grows so fast... The chemicals that I found on the inter net are either super expensive and/or kill turtles, fish and frogs... Anyone have any experience with battling this invasive stuff??? B~ |
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Subject: RE: BS: Duck Weed... Grrrrrrrrrrrrr.... From: gnu Date: 22 Jun 12 - 08:17 PM Kin ya smoke it? |
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Subject: RE: BS: Duck Weed... Grrrrrrrrrrrrr.... From: bobad Date: 22 Jun 12 - 08:20 PM Ducks eat it. |
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Subject: RE: BS: Duck Weed... Grrrrrrrrrrrrr.... From: Bobert Date: 22 Jun 12 - 08:27 PM No, ya' can't smoke it an' ducks don't want nuthin' to do with it... It's slimy and they won't so much as swim thru it... B~ |
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Subject: RE: BS: Duck Weed... Grrrrrrrrrrrrr.... From: bobad Date: 22 Jun 12 - 08:28 PM That don't sound like what I know as duckweed. |
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Subject: RE: BS: Duck Weed... Grrrrrrrrrrrrr.... From: bobad Date: 22 Jun 12 - 08:32 PM From: Ohio State University School of Natural Resources "White ducks or domesticated mallards eat duckweed and watermeal and can prevent nuisance populations of either. However, their defecation can lead to serious nutrient problems and cause a filamentous or planktonic algae bloom." |
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Subject: RE: BS: Duck Weed... Grrrrrrrrrrrrr.... From: gnu Date: 22 Jun 12 - 08:36 PM Oh. I s'pose, if it's in the pond, it'd be hard ta roll and light. |
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Subject: RE: BS: Duck Weed... Grrrrrrrrrrrrr.... From: open mike Date: 22 Jun 12 - 09:12 PM MAYBE KOI EAT IT? |
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Subject: RE: BS: Duck Weed... Grrrrrrrrrrrrr.... From: bobad Date: 22 Jun 12 - 09:26 PM From same source as previous: Grass Carp & Koi � Both of these fish species eat duckweeds & watermeal. Grass carp (white amur), however, will generally consume other aquatic plants first. The fast reproductive potential of duckweeds allows nuisance levels to build while the grass carp are eating other plants. Also, large grass carp struggle to eat such small plants, which is likely why they prefer more substantial plants to eat. Thus, grass carp are not a recommended control for duckweed or watermeal. If used, only sterile, triploid grass carp are legal for stocking in Ohio. Koi are a smaller cousin to the grass carp, rarely exceeding 12 inches in length. They are quite willing to eat duckweeds and watermeal and their small size allows koi to more efficiently consume them. They can prevent or reduce a duckweed problem if stocked early in spring prior to duckweed appearing. They cannot eradicate an existing problem as consumption by koi cannot keep pace with duckweed �budding.� No stocking rates are known, but prevention has been attained at 50 koi per acre. Pond owners should buy koi possessing little color value to the koi industry because many koi producers will sell these "low value" koi at cost. One drawback is that koi are vulnerable to predation by herons and large bass and maintaining them in sufficient numbers may be difficult. |
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Subject: RE: BS: Duck Weed... Grrrrrrrrrrrrr.... From: Ebbie Date: 22 Jun 12 - 09:37 PM Practically every pond or lake that I know of has this problem. Here in Juneau every two years or so they drain the (small) lake and let the sun and air kill or slow the stuff. At the Oregon coast at Devils Lake they tried multiple methods and sometimes it seems to be doing the trick. It always comes back though. |
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Subject: RE: BS: Duck Weed... Grrrrrrrrrrrrr.... From: Stilly River Sage Date: 23 Jun 12 - 02:16 AM If it was algae, you could use cornmeal. Various products like vinegar and hydrogen peroxide are good on terrestrial weeds, but who knows what they'd do and how much they'd change the pH of the water. I did a quick survey of the non-organic treatments. They sound awful - lethal to any wildlife in most cases. Sounds like it's time to get the pool scoop and find a place to plop the duckweed to dry. Maybe out of the water it is more useful? As a food or fuel? SRS |
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Subject: RE: BS: Duck Weed... Grrrrrrrrrrrrr.... From: Bert Date: 23 Jun 12 - 02:59 AM A weed whacker. |
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Subject: RE: BS: Duck Weed... Grrrrrrrrrrrrr.... From: JohnInKansas Date: 23 Jun 12 - 07:20 AM Common opinion in my area has been that "plain ol' river carp" will eat duckweed, but complete eradication by "natural methods" is pretty much impossible. If you put in enough fish to eat it all, when they have eaten it all they'll starve and the stink from the dead fish might be worse than the weed. (Using goldfish or koi is frowned on in some areas for open ponds where you can't strictly control possible "escape" breeding.) Initial growth seems to be mainly in shallow water, and adding some taller "water weeds" like cattails or one of the taller "marsh grasses" sometimes slows the duckweed by shading the shallows. Shoreline trees might also help a little, but I think you've indicated you've got plenty of them already. Increasing the in/out water flow to increase circulation is sometimes claimed to help, but of course if you don't have enough "in" increasing outflow won't favor having much of a pond. It's likely, if duckweed is more of a problem than usual (although "usual" is bad enough), that you're getting some "excess fertilizing" from feedlot or cropland runoff, but that's likely to be beyond any controls you can apply beyond encouraging your local ag agent to point out to the people upstream that they're spending a lot of money on all that excess phosphate they dump on their fields. (Most "real farmers" here have soil sample testers and computers to work the cost/benefit trades very closely for their cropland, and don't produce much runoff, but you can't keep the pigs and cows from dumpin' when they feel the urge.) John |
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Subject: RE: BS: Duck Weed... Grrrrrrrrrrrrr.... From: Bobert Date: 23 Jun 12 - 08:06 AM Yup, John... We live in farm country... I'm gonna continue tryin' to round it up manually even though I know it's not ever gonna eradicate it... I have built a contraption with pool noodles and cpvc pipe that is 60 ft. long and can kinda pull it to one end where it can be netted... It's time consuming but beat looking at it... B~ |
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Subject: RE: BS: Duck Weed... Grrrrrrrrrrrrr.... From: maeve Date: 23 Jun 12 - 08:32 AM Bobert, I found this product online: http://www.newtechbio.com/dead-algae-and-duckweed-digester.htm |
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Subject: RE: BS: Duck Weed... Grrrrrrrrrrrrr.... From: GUEST,olddude Date: 23 Jun 12 - 08:43 AM Bobster, check out copper power chemical, the grape farmers use it here for their ponds and they still have plenty of bass and turtles. I know cause I fish the farm ponds. What the farmers do is put the green power next to the feeding spring and let it slowly trickle into the pond. It takes care of the weed but doesn't seem to affect anything that I know of. You can get it at any of the farm supply stores. The farmers use a very small amount for an acre or more pond. My buddie Garry would use just a handful at most ... Still had some duck weed but very little of the crap. |
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Subject: RE: BS: Duck Weed... Grrrrrrrrrrrrr.... From: Rapparee Date: 23 Jun 12 - 09:39 AM Waddaya got against ducks smoking weed? |
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Subject: RE: BS: Duck Weed... Grrrrrrrrrrrrr.... From: GUEST,crazy little woman Date: 23 Jun 12 - 09:46 AM In the 1980's, I knew some farmers that were having ponds built on their land by the USDA Soil Conservation Service. The purpose was to keep eroding farm soil out of water courses. Was your pond built by the gov't, or did some former owner just think a pond would be nice? If it was the gov't, visit the local office (now, I believe, the National Resources Conservation Service) and ask what to do, now that 30 years have passed and the quality is deteriorating. If some amateur just bulldozed himself a pond, why don't you get rid of it? What does it do, besides produce duckweed and mosquitoes? Maybe someday a kid will drown in it. |
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Subject: RE: BS: Duck Weed... Grrrrrrrrrrrrr.... From: Bobert Date: 23 Jun 12 - 11:50 AM First of all, we love the pond... It is an asset and we'd like to get it healthy enough for fish... Right now it's just supporting about 12 turtles and about a hundred frogs... It is not spring fed, however, so I am considering digging a well and pump up water to feed it... I checked out your sire, maeve... It didn'e say anything about killing duck weed but it sounds like something I need to do anyway... I'll check out that copper, Ol'ster... B~ |
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Subject: RE: BS: Duck Weed... Grrrrrrrrrrrrr.... From: maeve Date: 23 Jun 12 - 12:15 PM Hmmm...I'll look again, Bobert. I was sure I saw something. |
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Subject: RE: BS: Duck Weed... Grrrrrrrrrrrrr.... From: maeve Date: 23 Jun 12 - 12:20 PM No wonder- I meant to include this link first; the product seems to meet your needs, and can be used with the copper stuff and the bacterial product I linked and you saw. http://pondalgaesolutions.org/2010/09/07/organic-duckweed-control/ |
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Subject: RE: BS: Duck Weed... Grrrrrrrrrrrrr.... From: Jim Dixon Date: 23 Jun 12 - 12:23 PM I think it's best to make your peace with duckweed and leave it alone. It might look like scum from a distance but it's actually very clean. From Wikipedia:
The plants can provide nitrate removal, if cropped, and the duckweeds are important in the process of bioremediation because they grow rapidly, absorbing excess mineral nutrients, particularly nitrogen and phosphates. For these reasons they are touted as water purifiers of untapped value.[7] The Swiss Department of Water and Sanitation in Developing Countries, SANDEC, associated with the Swiss Federal Institute for Environmental Science and Technology, asserts that as well as the food and agricultural values, duckweed also may be used for waste water treatment to capture toxins and for odor control, and, that if a mat of duckweed is maintained during harvesting for removal of the toxins captured thereby, it prevents the development of algae and controls the breeding of mosquitoes.[8] The same publication provides an extensive list of references for many duckweed-related topics. These plants also may play a role in conservation of water because a cover of duckweed will reduce evaporation of water when compared to the rate of a similar size water body with a clear surface. |
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Subject: RE: BS: Duck Weed... Grrrrrrrrrrrrr.... From: Jim Dixon Date: 23 Jun 12 - 12:30 PM The Charms of Duckweed |
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Subject: RE: BS: Duck Weed... Grrrrrrrrrrrrr.... From: Rapparee Date: 23 Jun 12 - 03:43 PM Which kind do you have? There are three aquatic plants called "duckweed" and some are more easily edible than others. |
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Subject: RE: BS: Duck Weed... Grrrrrrrrrrrrr.... From: Bobert Date: 23 Jun 12 - 04:33 PM I'm not wasting any of it... I put it into my compost pile... But it is not at all attractive and before I went to war on it it covered the entire pond so taking the canoe out was a slimy experience... I have the bulk of it corralled behind my flotation device and can net about 50 pounds an hour... I'm slowly getting it... I know I'll never be rid of it completely but it's nice to see real water rather than a pea green carpet... B~ |
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Subject: RE: BS: Duck Weed... Grrrrrrrrrrrrr.... From: Rapparee Date: 23 Jun 12 - 05:32 PM Composting perfectly good food! Tsk, tsk. |
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Subject: RE: BS: Duck Weed... Grrrrrrrrrrrrr.... From: Dave Hanson Date: 23 Jun 12 - 09:01 PM In the great scheme of things, how does ' duckweed ' fit in, you fucking cretin. Or are you just bored. Dave H |
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Subject: RE: BS: Duck Weed... Grrrrrrrrrrrrr.... From: redhorse Date: 24 Jun 12 - 04:28 AM Duckweed on a pond is like moss in a lawn: if you've got it, it's because the conditions are right for it to thrive. Chemical treatment can only cure it if you're prepared to keep on doing it: great for the shareholders of the chemical company, but that's about it. I think your plan to change the flow in the pond makes a lot more sense. |
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Subject: RE: BS: Duck Weed... Grrrrrrrrrrrrr.... From: GUEST,olddude Date: 24 Jun 12 - 10:43 AM Garry said copper sulphide you can get it at the feed store. toss a handful into the weeds. I don't care what they said. Garry and I had large mouth bass in his pond the size of your leg and it never hurt anything. His pond is full of sunfish and bass and one hell of a lot of painted turtles ... so it didn't hurt anything .. give it a try bobster and put a couple of bass in that pond. His pond had nothing but small sunfish, he and I tossed 4 largemouth bass in it ... in less than 3 years it was filled with huge sunfish and monster bass. They ate all the small fries and allowed everything to grow ... monster bass fishing and throw back in is a heck of a lot of fun |
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Subject: RE: BS: Duck Weed... Grrrrrrrrrrrrr.... From: gnu Date: 24 Jun 12 - 02:12 PM nOT FOR THE BASS. >;-) |
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Subject: RE: BS: Duck Weed... Grrrrrrrrrrrrr.... From: Q (Frank Staplin) Date: 24 Jun 12 - 02:59 PM Useful advice on pond weed control from Ohio tate University. http://ohioline.osu.edu/b374/b374_8,html It has some cautions about the use of copper sulfate (when to use and not use), recommended dilutions, etc. |
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Subject: RE: BS: Duck Weed... Grrrrrrrrrrrrr.... From: Q (Frank Staplin) Date: 24 Jun 12 - 03:03 PM Sorry- comma-infected. http://ohioline.osu.edu/b374/b374_8.html |
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Subject: RE: BS: Duck Weed... Grrrrrrrrrrrrr.... From: Rapparee Date: 24 Jun 12 - 08:30 PM Bobert, ya jist need more flexibility in yer pond's inhabitants. |
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Subject: RE: BS: Duck Weed... Grrrrrrrrrrrrr.... From: Bobert Date: 24 Jun 12 - 08:45 PM Don't think he is in there, Rap... What is it, anyway??? Loch Ness hisself??? B~ |
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Subject: RE: BS: Duck Weed... Grrrrrrrrrrrrr.... From: Rapparee Date: 24 Jun 12 - 09:14 PM Alligator mississippiensis. |
