I’m creating an Aquaponic Garden for my school and would love to get some duckweed! This restriction has potential adverse effects on algal growth. Feel free to email me for more communication. Other genera belonging to the duckweed family are Spirodela, Wolffia (the smallest flowering plant in the world!) Hello, The idea is to let your duckweed finish its job of nutrient removal so that your pond water is Mostly just plain old water. now i’m growing a tiny collection of it on my window board.I would be really interested in growing it as human food for my family. Terri, solar drying it works well. It’s important to note that Duckweeds can double their numbers in just 3 days! These fish won’t cause much harm to the plant other than occasionally nibbling on it. As such, you have to control this overgrowth to prevent its harmful effects. Therefore, a purchase of these quite large fish should be well-considered in order to ensure species-appropriate keeping. Duckweed has the ability to multiply rapidly and can infest a pond or quiet bay in a matter of days. Disinfecting the duckweed will make sure that it is free of pests and bacteria. Although Duckweed is native, it can be aggressive invaders of ponds and are often found mixed in with mosquito fern or watermeal. A contiguous mat of duckweed in your tank will do a great job in limiting the penetration of sunlight and lamplight into deeper layers in the tank. . This is a relatively unexplored application in the US. Thanks for reading! Tamra. Some of them might be the Lemna-esque-looking dotted duckweed (Landoltia punctata). Duckweed Maintenance. What to do when the duckweed arrives. Anyone have a supply? Recent Examples on the Web Scientists have learned that duckweed can produce almost the same amount of protein as soybeans, soak up heavy metals and be revived after months or years in a … Thank you! i would like to ask regarding duckweed productivity /day/area pond I have a friend in Louisiana that is looking into it now. I can’t lay claim to developing all of them. Hi Stephanie, I’m not in the habit for killing it because it’s good for so many things, but everything in the right place. Hope you can find uses for it in your everyday life. © 2018 Aquasabi | Created with and in Braunschweig, Germany. Hi, your information about Duckweeds is very eye-catching! hi tamraf A good tool for collecting single free floating duckweed leaves is a small skimmer described in the article "Effectively remove plant clippings". The burning/smudge was suggested to me by a researcher a couple of years ago. I’d feed it no more than 15% as a fresh supplement or up to 25% as dried feed (insure that your roots are short 1/4 inch, when you harvest it or your protein content will be too low.) Any advice or suggestions will be greatly appreciated ! If anybody wants to buy duckweed, please email us at [email protected] Luckily, controlling duckweed in ponds is very simple. The costs for the shipping method you have chosen are not included. Stock duckweed eating fish and domesticated duck in your pond or lake. I was mostly interested in it as a survival food, but the number of uses you list makes it even more interesting. Duckweed-based wastewater treatment systems The basic concept of a duckweed wastewater treatment system is to farm local duckweeds on the wastewater which needs to be treated. Clifton, duckweed is so easy to harvest, local farmers could do just that. Change ), You are commenting using your Facebook account. Whether or not this method works and is practicable, we can’t really say. Take extra caution to detect stray duckweed leaves especially on these interfaces. In garden ponds it is important to monitor the growth of the duckweed to prevent complete coverage of the pond, which results in oxygen depletion and fish kill. I hesitate to advise eating it raw due to possible issues with E. coli, etc. Can I post this article about duck weed on facebook. When you try this, please make sure that the aquarium has no other floating plants and aquatic plants with surface contact because the aphids will attack those, too! If rained on during the drying process, it ruins it. Excess food increases the amount of nutrition in water which triggers the growth of duckweed. Waterlilies and other plants with floating leaves can also substantially reduce the level of duckweed. I think they are sated, in fact I'm SURE they are sated. If you don’t go out of your way to maintain Duckweed growth, expect your tank’s oxygen to deplete, its filter to clog and its appearance to look unsightly. Perry, any duckweed species is a good one when it comes to water remediation. what is the quantity of manure(duck) require for pond size 2500 meter square. Slight agitation, such as where an outlet flows, seems to increase the asexual reproductive process. A large part of the duckweed will stick to the glass, from where it can easily be wiped off with a paper towel. So, we could start with one square meter, for example, as a size of a tray and learn how to grow it," he says. I advocate man-made ponds dedicated to just duckweed with provisions for overflow control. Biofilms formed on the duckweed roots apparently promoted COD removal and degradation of organic nitrogen into ammonia. In most cases, these precautions are sufficient and will prevent the duckweed from taking over the tank. I am doing Algaeduckweed innovation in pond and over ground for poulgry and caw feed. I could get lots to you. Its a persistent and expensive problem here in the UK. Once all visible duckweed has been collected, the procedure is basically the same as described in the section "Preventive Measures". Duckweeds tend to be associated with fertile, even eutrophicconditions. and Wolffiella. Just be sure that the runoff into the Canal is not from an industrial use. It IS known and researched that a covering mat of duckweed inhibits mosquito larvae’s ability to reach the surface, thereby blocking it from oxygen. ( and the duckweed may come back anyway.) Quite an unusual countermeasure recommended on various Internet forums and blogs is the targeted use of aphids. Win/win. Michigan. I suggest without knowing your situation, that you ensure that all excess nutrients from Lawns Farms Etc get to diverted in other directions. Thanks! Of course, this also applies to plants bought from hobbyists. Thank you for your permission to quote you on my blog … I posted on Friday, but I’ve only just been able to upload pix, so I’m just letting you know now that its up – its in the latest post, dated November 5, about ponds. Dear Lorie, much more is known about duckweed’s ability to remediate waste water than as a mosquito repeller from smudge fires. And since it is packed with nutrients and protein almost equal to a bit of a worm, your fish will grow healthier in a small amount of time. Duckweed on my pond Of course, any plant which grows so quickly is bound to make a nuisance of itself now and again and this is why many people, including me at one time, consider it to be bad news. Shading can reduce duckweed growth. Hi, thank you so much for all the useful information! A big thank you goes out to all my fellow duckweed enthusiasts from around the world who have been kind enough to share their experiences with me. Thank you! Duckweed prefers slow moving water however, you will notice fastest growth with areas of agitation. As far as waste water remediation with duckweed, I can suggest http://www.duckweed49.com Dr. Louis Landesman for consulting, or http://www.agriquatics.com Paul Skillicorn for remediation systems using duckweed. The water becomes largely anoxic, which in turn favors denitrification. I have a large amount of duckweed need help in Marketing it. Most species have a rapid growth rate when conditions are right, and are easily introduced into new habitats. If you’ve got fish, then you are in luck as far as nutrients go as the duckweed utilizes fish waste. We have tons of it here in Japan, it pops up like, weed! Duckweed growing is not expensive to do, in fact, it is one of the most reasonable food cultivation for aquarium lovers, budget-wise. I have been in contact with leader researchers around the world and are designing a growing method. I tasted it and the taste was surprisingly neutral. Then I suggest you harvest aggressively daily and put your duckweed in your garden or somewhere where it can do some good. Prophylactically, you can keep the skimmer running during this period. To harvest, scoop the duckweed with the fish net or a coffee filter and transfer to fish tank for food. I also would guess that could be a local observation also. However, if it IS a massive problem in your UK canals, I hate to say it but it isn’t the duckweed that is the problem, it’s the human element that is causing the excess nutrient leaching. Duckweed species are adapted to a wide variety of geographic and climatic zones, with most species inhabiting tropical and subtropical areas (Mwale et al., 2013). [email protected] I’m writing a blog post partly about ponds in front gardens, I’d like to refer to your work – I’m at http://www.preparednessfactandfiction.co.uk. If you don’t remove tge excess nutrients and kill off the duckweed, instead of a duckweed problem you will have an algae problem. The main use of duckweed is therefore in recovering nutrients from secondary-treated wastewater. In water bodies with constant currents or overflow, the plants are carried down the water channels and do not proliferate greatly. If colonies cover the surface of the water, then oxygen depletion and fish kills can occur. Write me if you are still looking for a supply that might serve you purposes. Perhaps we can discuss a program of seeing duckweed as a positive and encourage canal residents and neighbors to see duckweed as a free fertilizer/compost for their garden. If you don’t remove tge excess nutrients and kill off the duckweed, instead of a duckweed problem you will have an algae problem. But, after reading much of the literature out there and examining this site, I’m now reconsidering our ‘green gold’ crop. Pros and Cons of Common Duckweed . I live in Finland and so far have spotted no natural Wolffinia in here. Duckweed packs crude protein of 35 to 43 percent, fiber of 5 to 15 percent, polyunsaturated fat of 5 percent, and a host of trace minerals, calcium and Vitamins A and B. No aquatic weedkillers are available to the amateur. There are over 30 different species of duckweed. Large pond fountains do two things: first, they agitate the water surface, making it more difficult for the duckweed to survive and spread. Dry duckweed up to 20% of their normal rations. Crossed-out prices refer to the former price in the Aquasabi shop. https://www.aquasabi.com/aquascaping-wiki_aquatic-plants_getting-rid-of-duckweed. We offer a great deal. Duckweed is a water plant. Emma, thanks for your interest in duckweed for human consumption. Hi Patricia, I have not tried that as I primarily have been working with it for fresh mulch and compost applications. If you are thinking of ordering online and hoping they arrive in good condition, the supplier generally gives you extra to cover any potential loss. We want to grow duckweed as efficiently as possible. Change ). Duckweed is often found growing in companion with water lilies, pond lilies and other still water aquatic plants. According to Dr. Lewis Landesman, people in Thailand and Burma eat it or have in the past, calling it “water eggs.” There are recipes on the Net for using it as a salad with onions, lemon juice and oil, salt and pepper. My rational for including it was that I have personally burned moist duckweed and the smell was so powerful and lingering… it could quite feasibly work as Citronella but doesn’t smell as nice!] We sell it by the pound. We recommend our Dibrox® Herbicide - it is easy to use and will eliminate duckweed from your pond. If the food remains uneaten, it can rot and infect the tank or aquarium. The use of a fountain to disturb the surface may also help; Weedkiller control. Since even a single small duckweed plant is sufficient to trigger the formation of a population, caution should be exercised especially when buying new aquatic plants Only In-Vitro plants are guaranteed to be 100% free from duckweed. "And duckweed because of its small size allows you to do that, to scale at different levels. ), Farm animal/biomethane/duckweed semi-closed loop systems, Aquaponics- tilapia/hydroponics/duckweed semi-closed loop systems, Protein tofu and refined powdered source for protein additives, Gene manipulation for wide variety of applications, Indicators of variances in research testing, Promotion for sustainable wastewater reuse, Bioplastic raw ingredient  (Thanks Ryan Hunt! Nitrification of ammonia occurs within the aerobic root zone of duckweed… Unfortunately I have not found any local sources for help and input. I’ve tried a couple if forums about duckweed but have yet to get a reply. Overview Information. ( Log Out /  I’m a High School Student from Philippines and I was wondering if Duckweeds as Human Food is safe and healthy? Thanks! Lernen Sie die Übersetzung für 'duckweed' in LEOs Englisch ⇔ Deutsch Wörterbuch. These insects suck plant sap, reproduce in large numbers, and are said to kill the duckweed in this process. Sorry, your blog cannot share posts by email. Hello Tamra, A clear surfaced canal doesn’t mean a healthy water body. If you could ship me some I would be really appriciative. For all other forms of cultivation - pot, bundle, single plant, portion or pad - the seller cannot completely rule out duckweed on the plants, because they may have already come into contact with duckweed in the nursery. It is not easy to get completely rid of duckweed, especially Lemna and Wolffia. I found the article from your first sentence Do ducks eat duckweed. I would try using fresh duckweed in a manure tea that is sitting in the dark. Duckweed often sticks to objects protruding from the water, such as technical equipment, tubing or hardscape such as driftwood. A dense cover of duckweed on the surface of water inhibits both oxygen entering the water by diffusion and the photosynthetic production of oxygen by phytoplankton because of the poor light penetration.