Pond Boss Magazine
http://www.pondboss.com/images/userfiles/image/20130301193901_6_150by50orangewhyshouldsubscribejpeg.jpg
Advertisment
Newest Members
Chetter, GravyTrain, richieP, mofish, Brad Morris
15404 Registered Users
Forum Stats
15404 Members
36 Forums
35546 Topics
484583 Posts

Max Online: 1039 @ 03/28/13 02:44 PM
Top Posters
esshup 24027
Cecil Baird1 20043
ewest 19332
Dave Davidson1 13356
Theo Gallus 12364
Who's Online
11 registered (snrub, DannyMac, tlh2865, DrLuke, Bill Cody, Shooter Hybrid, John Fitzgerald, matija, wbuffetjr, anthropic, Brian75), 233 Guests and 464 Spiders online.
Key: Admin, Global Mod, Mod
Topic Options
#122034 - 06/16/08 10:31 AM American Pondweed
ohmanlee Offline
Lunker

Registered: 05/25/08
Posts: 17
Loc: California
I need help in eliminating/controlling American Pondweed. We tried Sonar AS @ 40ppb and struck out. Zero results. The next year (2006) we tried Sonar AS @ 90ppb on the advice of Sepro (manufacturer of Sonar) and struck out again. Zero results. Last year, I gave up in frustration. Back at it this year. Any help or advice on how to deal with this weed will be greatly appreciated. Thanks.

Top
#122037 - 06/16/08 11:15 AM Re: American Pondweed [Re: ohmanlee]
Shorty Offline
Lunker

Registered: 07/28/05
Posts: 4130
Loc: Raymond, NE
_________________________


Top
#122040 - 06/16/08 11:48 AM Re: American Pondweed [Re: Shorty]
jeffhasapond Offline
Ambassador
Field Correspondent
Lunker

Registered: 07/28/06
Posts: 7613
Loc: Pond in No CA, Me in So CA
I had some American Pond weed along with my crop of Elodea.

I used a mixture of Reward and Cutrine Plus and had fantastic results on both the pond weed and elodea.

The second link above recommends this mixure.
_________________________
JHAP
~~~~~~~~~~

"My mind is a raging torrent, flooded with rivulets of thought cascading into a waterfall of creative alternatives."
...Hedley Lamarr (that's Hedley not Hedy)

Top
#122048 - 06/16/08 12:48 PM Re: American Pondweed [Re: jeffhasapond]
Dave Davidson1 Offline
Moderator
Lunker

Registered: 01/04/06
Posts: 13356
Loc: Hurst & Bowie, Texas
I have eliminated it quite often with grass carp. Can you get them in California?
_________________________
It's not about the fish. It's about the pond. Take care of the pond and the fish will be fine. PB subscriber since before it was in color.

Without a sense of urgency, Nothing ever gets done.

Boy, if I say "sic em", you'd better look for something to bite. Sam Shelley Rancher and Farmer Muleshoe Texas 1892-1985 RIP

Top
#122061 - 06/16/08 05:14 PM Re: American Pondweed [Re: Dave Davidson1]
ohmanlee Offline
Lunker

Registered: 05/25/08
Posts: 17
Loc: California
Thanks for the responses & suggestions.

Shorty, the plant has been positively ID'd as APW by both UC Davis Ag Dept. and two chemical manufacturers.

Jeff, I have tried Reward on an experimental basis. The infestation of APW is so dense that there is no practical way to get the diquat in contact with the entire plant surface as recommended. This weed is growing in water depth to 11 feet and each stem is covered with algae. The Diquat was somewhat effective near to shore where the plant was fully in contact with the chemical due to the shallow water. Of course, the Diquat is not a systemic, but a contact weed killer, and,therefore, does not kill the root system. At least that is my understanding.

Dave, the grass carp in not an option as there is a
flow-through creek which runs up to 6 month out of the year. CA Fish & Game will not issue the needed permit in situations where a flow-through creek exists.

I paid close to $1,700 per gallon for the Sonar AS since the systemic herbicide seemed like the best way to go. I have had zero luck so far dealing with Sepro in an attempt to be made whole by Sepro, either with a refund or with additional product at no cost. The Sepro West Coast rep recently visited the ponds and could not believe the amount of weeds I am dealing with. He said the Sonar "should have worked". I told him "it didn't. How about some help?".

We are into this about $5k now for the 3 gallons of Sonar with nothing to show for it. Any additional ideas by anyone experienced with APW will be greatly appreciated. Thanks.

Top
#122063 - 06/16/08 05:30 PM Re: American Pondweed [Re: ohmanlee]
ewest Offline
Moderator
Hall of Fame 2014

Lunker

Registered: 03/08/05
Posts: 19332
Loc: Miss.
Did the water flow-through effect your Sonar application? Aquathol worked better for me than Reward. It does not kill the roots and the stuff comes back. Glyphosate and Habitat applications did not work. Removal by track-hoe may be and option to reduce them to a measurable amounts then by chemical methods.
_________________________















Top
#122064 - 06/16/08 05:35 PM Re: American Pondweed [Re: ohmanlee]
Shorty Offline
Lunker

Registered: 07/28/05
Posts: 4130
Loc: Raymond, NE
Wow ohmanlee, I had no idea that American pondweed grew to those depths, I always assumed it was just a shallow water plant. I would still go with the Reward, cutrine plus, and would then amp up the mixture with a surfactant too. I would put down a treatment every two to three weeks until it was knocked out. My understanding is that with Sonar you can't have any water flow though otherwsie the treatment won't work like it is supposed to. A good down pour and flushing will ruin the Sonar treatment.
_________________________


Top
#122066 - 06/16/08 06:36 PM Re: American Pondweed [Re: ewest]
ohmanlee Offline
Lunker

Registered: 05/25/08
Posts: 17
Loc: California
Thanks, ewest. No, the flow through is not a factor, as I waited until the pond had stopped spilling for the season before using the Sonar. Sepro tested the water 16 days after application and said the ppb was as required. The Sonar made the APW sick (whitish, pink color to the leaves) but could not kill it as advertised.

My latest idea is a tool called a Weed Razor, which cuts a 4 foot swath through the vegetation, which then floats to the surface. Quite a bit of work, but with two 14 year old helpers and two Weed Razors, I cleared one entire one-acre pond last Friday. We cut and removed 90% of the vegetation in the pond and I am now waiting on Sepro to come across with some chemical to treat the pond again before the re-growth gets too thick.


Edited by ohmanlee (06/16/08 06:41 PM)

Top
#122067 - 06/16/08 06:38 PM Re: American Pondweed [Re: Shorty]
ohmanlee Offline
Lunker

Registered: 05/25/08
Posts: 17
Loc: California
Shorty,
The APW will grow in water even deeper than 11 feet, if the water is clear enough for the light to penetrate to the pond bottom for seed germination. Our pond is 13' in depth in the deepest place. No weeds in that small area, as the water is not clear enough.

We don't get enough rain in the summer (usually zero) to be a factor. Sonar is actually used by some irrigation districts in their canals with continuously flowing water. They meter it in at higher rates, up to 130ppb, to maintain the target amount of chemical in the water.


Edited by ohmanlee (06/16/08 06:39 PM)

Top
#123412 - 06/29/08 04:48 PM Re: American Pondweed [Re: ohmanlee]
Kelly Duffie Offline
Lunker

Registered: 04/19/02
Posts: 1475
Loc: Cypress, TX (Helena A-E LLC))
 Originally Posted By: ohmanlee
We don't get enough rain in the summer (usually zero) to be a factor. Sonar is actually used by some irrigation districts in their canals with continuously flowing water. They meter it in at higher rates, up to 130ppb, to maintain the target amount of chemical in the water.


The irrigation districts must be metering the dose during periods when the water will not be used for irrigation, since SONAR has a 30-day(+) irrigation restriction (unless below 10ppb, and only for established turf).
AQUATHOL SUPER K (endothol on polymer granules) might be your best bet (and hopefully not a third strike). Then again, I'm puzzled why the SONAR didn't perform.
Do you know the scientific name of your specific plant? Several rooted/emergent plants with eliptical leaves on the surface are often called Americal pondweed (sometimes incorrectly).

Top
#129316 - 08/14/08 10:09 PM Re: American Pondweed [Re: Kelly Duffie]
Mike Miller Offline
Lunker

Registered: 04/04/06
Posts: 204
Loc: Hutchinson, Kansas
ohmanlee.....I just purchased a weed razor to remove illinois pondweed from my 1 acre pond. It is 95% pondweed. I just started using it and it works great. I think a long weekend and a few nights I can have it cleaned up. What did you use to get the floating weeds out of the pond? For me that is the tough part.

Top
#129349 - 08/15/08 08:51 AM Re: American Pondweed [Re: Mike Miller]
Habitatpro Offline
Lunker

Registered: 05/21/08
Posts: 131
Loc: Missouri
I watched 4 Grass Carp yesterday afternoon in my pond munching on APW like cows grazing. Now, if they would go after the chara...

Top

Today's Birthdays
DClayton, Nicebass
Recent Posts
Big CNBG: Expensive but worth it?
by snrub
0 seconds ago
Aeration killed fish overnight
by snrub
26 minutes 12 seconds ago
Aquamax vs Game Fish Chow
by snrub
58 minutes 29 seconds ago
Aqua pro upper motor source?
by FireIsHot
Today at 04:33 PM
Legal Question
by anthropic
Today at 04:03 PM
How do pesticides in runoff affect a pond?
by anthropic
Today at 04:01 PM
Duck potato question
by anthropic
Today at 03:57 PM
Aquapro ADF75, Replace battery with power supply?
by Clay N' Pray
Today at 10:37 AM
Cloverleaf won't catch BHC
by Quarter Acre
Today at 08:46 AM
Stocked tilapia just for fun
by Clay N' Pray
Today at 06:41 AM
Newly Uploaded Images
Help ID this fish
Crayfish monster.
Turkey Pics
Question on pond draining
King Fisher
Tree Swallow grooming---Female Red-wing black bird

2014 POND BOSS INC. all rights reserved USA and Worldwide