The length of the curved side of the pond is half the circumference of a circle having a diameter of 11 feet, or: πd/2 = 3.14 × 11/2 = 17.21 feet. The length of the straight side of the pond is equal to the diameter, or: 11 feet. The perimeter of the pond is the sum of these two values: 17.21 + 11 = 28.21 feetPonds have a life cycle. A long life is best achieved by limiting the inputs of nutrients to the pond. Capture sediment before it enters the pond, limit the use of fertilizers within the …Ponds play a key role in increasing connectivity between freshwater habitats by providing stepping-stone habitats that enable the dispersal of a wide range of species in the landscape (Juračka et al., 2019; Hyseni et al., 2021).Pondscapes, defined as a network of ponds and their surrounding matrix (Boothby, 1997), are critical for supporting the …Americana music, lyrics, and videos from Phoenixville, PA on ReverbNationAs long as the pond is well-maintained and follows a natural ecosystem, there’s no need to get a water pump. However, there are certain fish species that may not do well in such a setup. For instance, Kois and Orfes may find it hard to survive without the help of pond pumps. This is because both species are highly active and consume a lot of ...59 Breeding phenology and spatio-temporal dynamics of pond use by the yellow-bellied toad population Dynamics of pond number and pond use The average amount of precipitation in toads active period (April August) was larger in 2004 and showed a smaller variation (52.17 mm/m² SD = 16.6) than in 2003 (48.02 mm/m², SD = 52.17).Tuesday - Thursday 4:00 pm - 8:00 pm Friday 4:00 pm - 10:00 pm Saturday 11:00 am - 10:00 pm Sunday 11:00 am - 7:00 pmThe Planet Money podcast reckoned that between 1980 (roughly when digital spreadsheets first started to be used commercially) and 2015, the US accounting profession lost …How to Use the Pond Pump Running Cost Calculator. To use the calculator, all you need is the wattage of the pond pump you're currently using (or looking to buy). The calculator will then work out: Daily Running Costs. Monthly Running Costs. Yearly Running Costs. The tariff is based on the current UK Energy Tariff.Its use was despised by Luddite rebels because, like the satnav, it made their expertise unnecessary. The digital spreadsheet is an example of "skill-biased technological change" that helps ...Fundamentals Waste stabilization pond at Grand Agadir, Morocco (Station M’zar) Effluent from a high rate algae pond and two maturation ponds in Attaouia, Morocco.Note the green color, caused by algae. Concept of stabilization. Sewage and many types of industrial wastewaters contain organic matter. If wastewater is discharged untreated into surface …Analysis of The Water Lily Pond: Green Harmony. Claude Monet was the driving force behind the radical group of modern artists who became known as the 'Impressionists'. Influenced by Eugene Boudin (1824-98) and Johan Barthold Jongkind (1819-1891), Monet himself came to specialize in plein-air painting, in order to capture the momentary effects ...Waterlilies. Waterlilies are one of the most popular floating pond plants. Their different colored flowers have certainly helped their popularity. The leaves provide essential cover for your fish and shade them from the heat during the summer. To propagate this species, you should separate shoots and their root systems from the main pot and ...7 – Keep the Pond Accessible. Keep your pond accessible for the ducks all year round. Use a heater or de-icer to prevent the water from freezing during winter. You can also use an aeration system to create water turbulence, making the water ice-free and allowing the winter ducks to browse for food.Americana music, lyrics, and videos from Phoenixville, PA on ReverbNation4. Using a pond vacuum. Using a pond vacuum is a traditional method, and hard to drain a pond with it. But it’s very effective to clean pond water and control pond algae. You can use a pond vacuum to drain the pond if you have a good drainage system. Cheaper pond vacuum doesn’t have a good water discharge system.Video and audio adventures that apply solid, biblically-based truths to life lessons, building character in your kids and providing more than a splash of humor along the way from a crew building lifelong friendships at The Pond. It's hours of family-safe entertainment with this five-video series and 60+ audio episodes.The bottom line is that if we are going to continue to benefit from the use of our natural resources, we must be willing to act to preserve them. With all the doom and gloom involving the environment, Beyond the Pond is a breath of fresh air - it is a positive communications initiative involving diverse collaborators that helps us to emphasize ...Step 2: Mark the Pond. Place the preformed pond liner down in your chosen location. Stake the outside edge of the pond with your marking stakes. Use the leveling sand (or spray paint) to mark the outside edge of the pond liner, as well as, any tiers or shelves your pond liner has. Remove the marking stakes.Pout Pond is a public recreation area on 70 West River Road in Uxbridge. It is open to the public year round, 9am to dusk; however, our active season runs May through September. The park offers use of the pond for swimming, kayaking, and fishing. There are walking trails, a large picnic area, and lots of space for relaxing on the sandy beach.Pond owners who have hardy breeds of goldfish or koi in their pond may not need a pond heater during the winter-especially if they live in a climate with mild winters. Some fish are naturally tolerant of cold conditions and the occasional freeze-as long as there is ample oxygen available. That being said, we recommend you install a de-icer ...0:04. 0:26. DOVER — Willand Pond will be treated with herbicide to remove milfoil, an invasive plant species that ruins ecosystems, using a New Hampshire Department of …Pond Fishing . Tedras can be found beside a pond to the right of Shad Astula's entrance. He has been tasked with fishing from the pond, although the pond is quite devoid of any fish. ... He has created a totem to …Pond Tech. PJ started with The Pond Guy in 2020. She has over 20 years of Customer Service and Sales experience. With a bachelor's degree in Fine Arts, she loves all the creative designs of water gardens. Growing up on Lake St. Clair, she has a passion for all things water.Jan 17, 2024 · The best time to apply barley straw in your pond is before algae emerge in your pond, around fall or early spring. If the water is cold, it may take 6-8 weeks for the straw to take effect. In contrast, adding them to warm water above 70°F will make them effective in 1-2 weeks. Step 6: Fill the Pond with Water. Pressure-wash the inside of the pond and take the water out with a pump. Then, fill the pond with water gradually. This will give the liner time to adjust to the pond's shape and settle into place. Once the pond is complete, check for wrinkles or leaks in the liner.Jul 26, 2023 · Sample the edge of the pond: The edge of the pond, where plant life, including algae, thrives, is an ideal spot for sampling. This area often hosts a rich diversity of microorganisms, making it a valuable location for observation. Collect water, mud, and plant life: Use collection vials to scoop up samples of water, mud, and plant life from the ... You may need a heater for your koi pond, depending on where you live. You will only need to use a heater if your city experiences very cold winters where the pond can freeze over. If your city has mild winters, using a heater is optional. Koi are cold-water fish, so a heater isn’t needed year-round. If you want to keep your pond warm, you may ...Spring Start-Up. Over the course of a year, your pond will accumulate debris and organics such as leaves, twigs, grass clippings and fish waste. Although your filtration system may remove some of this debris, the rest will break down into muck and sludge, which will release nutrients into the water and may cause algae and water clarity issues.Spring Start-Up. Over the course of a year, your pond will accumulate debris and organics such as leaves, twigs, grass clippings and fish waste. Although your filtration system may remove some of this debris, the rest will break down into muck and sludge, which will release nutrients into the water and may cause algae and water clarity issues. Math. Other Math. Other Math questions and answers. Mr. Ling is adding a pond in the shape of a semicircle in his backyard. What is the area of the pond? Use 3.14 for n. Round to the nearest hundredth if necessary. As our analyses indicate that ponds are functionally distinct from lakes and wetlands, we propose the following scientifically informed pond definition (Fig. 8 ): Ponds are small and shallow waterbodies with a maximum surface area of 5 ha, a maximum depth of 5 m, and < 30% coverage of emergent vegetation.7 - Keep the Pond Accessible. Keep your pond accessible for the ducks all year round. Use a heater or de-icer to prevent the water from freezing during winter. You can also use an aeration system to create water turbulence, making the water ice-free and allowing the winter ducks to browse for food.Introduction. Pond ecology is best described as the interaction of the life in your pond with the environment that exists there. A shallow, nutrient-rich pond, exposed to sunlight with little water flowing through it will be teeming with algae and aquatic plants. It may have very little animal life present because of low oxygen levels.Use your knife to harvest at least 4, then head back up to the surface. Analyze the strands if you aren't at Brain Level 4 yet. Swim over the air bubbles floating around in the pond to replenish ...2. As Protection In Winter. Another one of the major advantages of pond salt is that it can help to protect the fish during the cold winter months. The winter months are usually the times when the fish in your pond are at their most vulnerable, and they need your support and protection to fend off illness and injury.Start the process by placing one or two fish in a plastic bag and floating it in the new pond water for 10-15 minutes. Gradually add small quantities of the new pond water to the bag until it's almost full. Finally, release your fish back into the pond. 17. Fully Refill The Pond.1. Hi-Yield Atrazine Pond Weed Killer 32 Fl. Oz-Best Weed Killer For Around Ponds. Top of our list is Hi-Yield Atrazine herbicides approved for use near the water find the best blanket weed killer for ponds. It has 2, 4-D ingredients, making it an outstanding Selective Killer for broadleaf aquatic weeds around ponds. View on Amazon.Introduction. Pond ecology is best described as the interaction of the life in your pond with the environment that exists there. A shallow, nutrient-rich pond, exposed to sunlight with little water flowing through it will be teeming with algae and aquatic plants. It may have very little animal life present because of low oxygen levels.Physics. Physics questions and answers. пk: A stone resting on a frozen pond is given an initial speed v; in the +x-direction. The coefficient of kinetic friction between the ice and the stone is (a) Write an expression for the acceleration of the stone as it slides across the frozen pond. (Use the following as necessary: Hk and g.2. As Protection In Winter. Another one of the major advantages of pond salt is that it can help to protect the fish during the cold winter months. The winter months are usually the times when the fish in your pond are at their most vulnerable, and they need your support and protection to fend off illness and injury.We have customers with large ponds used for swimming, fishing, and ice skating, in addition to customers with decorative water gardens containing koi, waterfalls, and ornamental plants. Products carrying The Pond Guy name are designed, developed, and tested in our labs to ensure high-quality products that exceed industry standards.As long as the pond is well-maintained and follows a natural ecosystem, there’s no need to get a water pump. However, there are certain fish species that may not do well in such a setup. For instance, Kois and Orfes may find it hard to survive without the help of pond pumps. This is because both species are highly active and consume a lot of ...STOCKHOLM, April 30, 2021 /PRNewswire/ --JANUARY – MARCH, 2021 (compared with January – March 2020)Net sales amounted to SEK 4,172m (4,793). The ... STOCKHOLM, April 30, 2021 /PRN...Jul 13, 2020 · Filtration via mechanical media is simply the removal of debris from your pond water as it is pumped through the filter. Mechanical media generally comes in a pad between .5” to 2” thick that resembles foam or a sponge. Mechanical filters trap small and large debris and thus must be removed and cleaned periodically. Pond Tech. PJ started with The Pond Guy in 2020. She has over 20 years of Customer Service and Sales experience. With a bachelor's degree in Fine Arts, she loves all the creative designs of water gardens. Growing up on Lake St. Clair, she has a passion for all things water.Gayle Hallgren-Rezac is co-author of WORK THE POND! Use the Power of Positive Networking to Leap Forward in Work and Life which she wrote with Darcy Rezac and Judy Thomson. WORK THE POND! has been called the "connectors handbook" by Town & Country magazine. It has been translated and published in China, Russia and Korea.Place Rocks Around the Pond. Place more sand or pea gravel (small gravel) around the edge of the pond. Then add large boulders, rocks, or flagstones on top. Leave up to 8 inches of space between ...Our water garden pond volume calculator can be used to calculate how many gallons of water your pond contains, what size it is, and how many fish you can add. This tool even has a built in pond liner calculator to determine how much liner is needed for your intended pond size. If you’re looking for a waterfall pump, try our pond pump ...But if the pond is accessible to livestock, remove at least 8 inches of topsoil although 10 inches is recommended. Step: 5. Find any holes and fix them with five parts of soil and one part of bentonite. Step: 6. Prepare the bottom surface of the pond by …One of the fastest ways to kill the duckweeds is to use Reward or Weedtrine-D. Reward and Weedtrine-D are the trade name and the chemical name is Diquat. The action is fast as duckweed absorbs it quickly. The rate of application is 1 to 2 gallons per surface acre of 2L or as per manufacturer recommendation.We conducted aerial surveys to monitor coastal pond use by redheads each week from mid-October through mid-March during 2000 to 2003. Surveys typically took 6 hours of flight time and were initiated during mid-morning. Our survey timing was based on previous findings that redheads were actively foraging during early morning and use ofThe pond vacuum will pick up debris, but it is not a filter. Returning the water into the pond will also return fine particles like sludge, muck, and water. Expect about a 10-25% water loss while cleaning the pond. Once you have selected your nozzle, turn the power switch to the on position and submerge the suction hose in the water.Learn which type of pond liner is right for your koi pond, water garden, or backyard water feature in this pond liner guide from The Pond Guy.Tamp and level the soil, then place the skimmer. Push the tubing through the grommet and into the skimmer. Assemble the check valve assembly on the pump and place it in the skimmer. Attach your check valve to the flexible tubing. Lastly, connect an overflow pipe to the back of the skimmer when you build your pond.Use of herbicide to kill invasive milfoil in Willand Pond sparks passionate debate in Dover over potential damage to groundwater. Only publicly available statistics data are displayed. pornodude.com receives about n/a unique visitors per day, and it is ranked 15,647,402 in the world. pornodude.com uses CloudFlare, Microsoft ASP.NET, Statcounter, reCAPTCHA web technologies. pornodude.com links to network IP address 3.223.115.185. Careless Floyd. $1.49. Chocolate For Life. $1.49. Christmas Ants, Part 1. $1.49. Page 1 of 7. Join your friends at The Pond on hilarious and character-building adventures with more than 65 audio episodes that always bring life's lessons back to God's Word.How to Apply. Adding dye to your pond is fairly easy. For the liquid, just pour the concentrated pond dye into the water in several areas, a few feet in from the pond's edge. For the water-soluble pond dye packets, toss in several areas towards the middle of the pond. Start off with less than the recommended amount, you can always add more ...Description. Southern Naiad is an annual plant that branches profusely and forms very dense stands of rooted submerged vegetation. Leaves are dark green to greenish-purple, ribbon-like, opposite or in a whorl of three, mostly less than 1/2 inch long and 1/8 inch wide. Single seeds are found encased in the leaf sheath.Apr 12, 2024 · How to use across the pond in a sentence. the other side of the Atlantic Ocean… See the full definition. Games & Quizzes; Games & Quizzes; Word of the Day; Grammar ... Gayle Hallgren-Rezac is co-author of WORK THE POND! Use the Power of Positive Networking to Leap Forward in Work and Life which she wrote with Darcy Rezac and Judy Thomson. WORK THE POND! has been called the "connectors handbook" by Town & Country magazine. It has been translated and published in China, Russia and Korea.Physics questions and answers. A puck resting on a frozen pond is given an initial speed vi in the +x-direction. The coefficient of kinetic friction between the ice and the puck is μk. (a) Write an expression for the acceleration of the puck as it slides across the frozen pond. (Use the following as necessary: μk and g.The Fish Pond is a type of farm building purchasable from Robin at the Carpenter's Shop.It takes two days to build and occupies a 5x5 tile space. A fish pond can hold and raise most types of fish, including Night Market fish, Crab Pot fish and beach forageables such as Sea Urchins and Coral.The fish produce Roe and random items. The only fish which cannot …Video and audio adventures that apply solid, biblically-based truths to life lessons, building character in your kids and providing more than a splash of humor along the way from a crew building lifelong friendships at The Pond. It's hours of family-safe entertainment with this five-video series and 60+ audio episodes.Ask The Pond Digger. Eric, The Pond Digger, has been answering pond questions for the community for years. Recently these questions have been addressed on YouTube for your viewing pleasure! Check back for more answers to your burning questions! To ask The Pond Digger a question: Simply put #asktheponddigger on Facebook, Instagram, or Twitter ...The most popular reason to add dye to your pond is to enhance the natural color and beauty of your landscape. Pond dye colors include bright blue, dark blue, blue-green, blue-black, and black. Because different dyes protect and shade the pond the same way, color choice is a matter of personal preference. However, different shades are better ...The Pond Shop® was developed specifically with the DIY pond, lake and water garden owner in mind. Offering top quality DIY maintenance supplies, we have the experience and knowledge to help you achieve your maintenance needs. Offering natural organic water treatment products from Pond Biologics®, top quality Vertex® pond aeration systems ...Pond Dye. Excessive sunlight can have a negative effect on a pond or lake. Adding pond dye not only beautifies your pond - it also provides a natural shade and improves your water quality. Our pond and lake dyes help limit sun exposure and promote a balanced ecosystem. Learn More. Free Shipping over $99* Most orders ship same day.5. Mosaic Plant. This pond-loving plant has a lily-like structure and grows best in the shallow borders around the edges of ponds. The leaves and flower of the mosaic plant float on the surface of the water, providing great habit for fish, frogs, and other amphibians.1) Oase BioSmart Koi Filter Review. OASE BioSmart 5000 Pond Filter. Innovative Flow-Through filter design with biological and mechanical filtration provides maximum oxygenation. BioSmart 5000 is suitable for ponds up to 5,000 gallons (with no fish). High-surface area filter foams provide exceptional biological filtration capability.Installing pond rocks. Handling rocks is a laborious job with lots of heavy lifting and re-positioning the rocks to get the right look. Wear thick garden gloves and use a garden cart to help move the rocks around if you haven't got anyone to help you.. Flat rocks can be placed around the edge of the pond to create an overhanging shelf.Benchmark Co. analyst Christopher Kuhn reiterated a Buy rating on XPO (XPO – Research Report) today and set a price target of $44.00. The ... Benchmark Co. analyst Christophe...Pandapas Pond Day Use Area. Area Status: Open Pandapas Pond is a pastoral, 8 acre pond located just outside the town of Blacksburg. It sits on the Eastern Continental Divide and is surrounded by a forest of hardwoods and rhododendron. Visitors will enjoy strolling the one-mile wheelchair accessible trail that encircles the pond.Wood or driftwood are not the best things to put in your pond. The organic material can decompose and turn into sludge that will clog up your pump, filter, and pipes. This could lead to a number of problems including an overflow of the pond and dirty water in it which is bad for fish health. Wood also does not provide any benefits such as ...This net features a protective guard to prevent the net from fraying when removing bottom sludge. With a quick-change snap-in design, the pond sludge net easily attaches to The Pond Guy Heavy-Duty Telescopic Pole (Sold Separately). Measures: 16"W x 18"L x 8"D, 3mm mesh netting. 1-Year Warranty.Pond fertilizer is a product designed to introduce nutrients into a fishing pond (or any pond) to boost the productivity of the ecosystem. The primary purpose of using fertilizer in a fishing pond is to increase the amount of available food for fish. Here’s how it works: Pond fertilizers are typically rich in phosphorus and nitrogen ...The first use of this shorter form is found in the Royal Gazette, which was a pro-British newspaper printed in New York by James Rivington in 1780: Then Jack was sent across the Pond To take her in the rear, Sir. It may well be that 'the Pond' was used colloquially for some time before Rivington was writing but we have no evidence of it.Add Barley: Barley is the perfect solution for maintaining a clean and clear pond naturally and is safe to use in ponds with fish and other wildlife. Barley can be used during the winter months when other pond treatments are ineffective. Barley products are available in several forms. All work to remove algae from your pond and keep it clean ...2. As Protection In Winter. Another one of the major advantages of pond salt is that it can help to protect the fish during the cold winter months. The winter months are usually the times when the fish in your pond are at their most vulnerable, and they need your support and protection to fend off illness and injury.Reopening March of 2024. Monday and Tuesday - 10am to 6pm. Wednesday - 10am to 7pm. Thursday and Friday - 10am to 6pm. Saturday and Sunday - Closed. 15425 Chets Way Street. Armada, MI 48005. Phone: 586-336-7663. Visit us at WeKnowPonds.com to learn more about our local services, showroom and display ponds.Once you’ve identified the pond weeds causing trouble in your pond, shop our large selection of algae control and aquatic weed control solutions. Algae & Chara. Algae is a common nuisance with no defined root …The Pond: Directed by Petar Pasic. With Marco Canadea, Paul Leonard Murray, Aleksandar Papajic, Leslie Soo. Anthropology professor was kicked out from his …The formula to calculate the volume of a trapezoidal pond at a specific depth is given by: Volume = ( (L + S * D) + B) / 2 * W * D. Let’s create a table for the pond volume calculator with a slope using depth intervals of 0.5 meters: Please note that the table will depend on the specific values of L, W, B, and S provided for the pond. Fill in ...Call 866-766-3435. We do our best to avoid errors in pricing and products, but we reserve the right to correct them. Visit The Pond Guy for a wide selection of lake and farm pond algae control, pond fountains, pond aeration systems, and lake muck removal products.The Pond Guy ClearVac Pond Vacuum can be used in any Koi pond, water garden, or water feature to perform regular maintenance. The ClearVac is designed to remove sludge/muck, algae, and debris up to 3/8". The vacuum can be used on a regular basis without having to remove the fish from the pond.We conducted aerial surveys to monitor coastal pond use by redheads each week from mid-October through mid-March during 2000 to 2003. Surveys typically took 6 hours of flight time and were initiated during mid-morning. Our survey timing was based on previous findings that redheads were actively foraging during early morning and use of
Guide to copper sulfate use in ponds and lakes, including application, how to mix, correct dosing, fish toxicity, and where to buy. ... I couldn’t tell from your description if I should use a total of 5 pounds for the entire pond – or split the 5 pounds to accomplish dosing the pond over 2 applications. Maybe you mean a total of 10 pound .... Selena gomez nudes leaks
The meaning of ACROSS THE POND is the other side of the Atlantic Ocean. How to use across the pond in a sentence.Public domain. To discover how barley works as an algae control method, we need to dive into the details and take a look at each step of the decomposition process as it enters your pond: 1) Barley straw, or barley extract, is placed in the pond and slowly begins to decompose. During decomposition the cellular structure of the barley begins to ...Explore the full range of POND'S® skin care products from cold cream cleansers and makeup remover wipes to sheet masks and anti-wrinkle cream (and much more!) on the official POND'S® site.One of the fastest ways to kill the duckweeds is to use Reward or Weedtrine-D. Reward and Weedtrine-D are the trade name and the chemical name is Diquat. The action is fast as duckweed absorbs it quickly. The rate of application is 1 to 2 gallons per surface acre of 2L or as per manufacturer recommendation.4. Using a pond vacuum. Using a pond vacuum is a traditional method, and hard to drain a pond with it. But it’s very effective to clean pond water and control pond algae. You can use a pond vacuum to drain the pond if you have a good drainage system. Cheaper pond vacuum doesn’t have a good water discharge system.Clear the area and outline the shape of the pond with spray paint or a rope. Dig the pond to the desired depth, sloping the sides at a 45-degree angle, and line it with a polythene sheet. Pour the concrete, add chicken wire mesh, and pour another layer. Cover the pond with plastic sheets and let it cure for 3 days.Waterlilies. Waterlilies are one of the most popular floating pond plants. Their different colored flowers have certainly helped their popularity. The leaves provide essential cover for your fish and shade them from the heat during the summer. To propagate this species, you should separate shoots and their root systems from the main pot and ...Jan 17, 2024 · The best time to apply barley straw in your pond is before algae emerge in your pond, around fall or early spring. If the water is cold, it may take 6-8 weeks for the straw to take effect. In contrast, adding them to warm water above 70°F will make them effective in 1-2 weeks. How to Use the Pond Pump Running Cost Calculator. To use the calculator, all you need is the wattage of the pond pump you're currently using (or looking to buy). The calculator will then work out: Daily Running Costs. Monthly Running Costs. Yearly Running Costs. The tariff is based on the current UK Energy Tariff. Learn which type of pond liner is right for your koi pond, water garden, or backyard water feature in this pond liner guide from The Pond Guy. Koi Salt Treatment. Fish with parasites, wounds, or bacterial infections can benefit from a salt bath. Prepare an isolation tank with 5 cups of salt per 100 gallons of pond water (not tap water) and add some vigorous aeration. Place the fish in the tank for 5 to 10 minutes and monitor closely for any signs of stress.Introduction. Pond ecology is best described as the interaction of the life in your pond with the environment that exists there. A shallow, nutrient-rich pond, exposed to sunlight with little water flowing through it will be teeming with algae and aquatic plants. It may have very little animal life present because of low oxygen levels.If there are 44 fish in the pond and the experimental probability of pink salmon is 60%, we multiply 0.06 by 44 to get 26.4 which can be rounded to 26 pink salmon. If the experimental probability of both, yellowfin tuna and bluegill is 20% each and there are 44 fish in that very pond, we multiply both of the probabilities with 44 to get 8.6 ...One of the fastest ways to kill the duckweeds is to use Reward or Weedtrine-D. Reward and Weedtrine-D are the trade name and the chemical name is Diquat. The action is fast as duckweed absorbs it quickly. The rate of application is 1 to 2 gallons per surface acre of 2L or as per manufacturer recommendation..