Semera Lake Weed Killer & Pondweed Herbicide

$74.00 – $115.00

Semera is a liquid aquatic herbicide or a granular lake weed killer. It controls many submerged plants as well as floating pond plants like watermeal and duckweed.

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SKU:SEMERA

Top Weeds Controlled

Watermeal
Watermeal
Charles Fisher Duckweed
Duckweed
American Pondweed
American Pondweed
Curly-Leaf Pondweed
Curly-Leaf Pondweed
coontail
Coontail
Egeria
Egeria
Elodea
Elodea
Flatstem Pondweed
Flat-stem Pondweed
Milfoil
Milfoil
fa web
Pond Algae
sagoPondweed
Sago Pondweed

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Product Info

Semera SC 8 oz. is a great aquatic herbicide for lake weeds around docks and behind boat lifts. Semera WDG aquatic herbicide is available in one pound containers that can treat up to a one acre pond. The fast-acting granule pebbles dissolve well into the water for easy DIY granular aquatic herbicide application. Semera can also be mixed with water and applied using a tank sprayer.
Semera controls a wide range of nuisance lake weeds and pond plants effectively and quickly.

Manufactured by Atticus LLC.

Aquatic Herbicides Water Use Restrictions (according to label):

  • Swimming: 0 days
  • Drinking Water: 0 days
  • Domestic Uses: 0 days
  • Fish Consumption: 0 days
  • Irrigation, Food/Crop: 5 days
  • Irrigation, Turf/Ornamental: 5 days
  • Livestock Watering: 0 days
Additional Info

Semera Liquid and Granular herbicide eliminates submerged lake weeds and nuisance pondweeds such as duckweed and watermeal. It also provides control of algae.

  • Fast Results! 3-14 days
  • EPA Approved and Safe – Does Not Accumulate in Plants or Water
  • No swimming or fishing restrictions

Also purchase MuckMaid

For a more complete solution to control floating weeds and pondweeds in a pond, reduce the nutrients in your pond, and to control the algae, we recommend using additional Watermeal Pond Products.

How to Apply

Read all product labels for complete instructions before applying products.

Resources/Video

Semera WDG Label

Semera WDG SDS

Semera SC Label

Semera SC SDS

Shipping Info

FREE shipping on orders $99+
Orders $98.99 or less will be charged $8.95.
Orders are usually shipped within one day by a ground carrier.
U.S. shipping only. International shipping available for the TORMADA®, Goose D-Fence®, and select products.
Certain regulations apply for shipping to AK, CA, CT, DE, HI, MA, ME, NJ, NY, RI, VT and WA. Please contact us if you live in one of these states: 1-877-428-8898

Lake/Pond Size Calculator
Area: Lake Pond

Reviews

Description

Semera SC 8 oz. is a great aquatic herbicide for lake weeds around docks and behind boat lifts. Semera WDG aquatic herbicide is available in one pound containers that can treat up to a one acre pond. The fast-acting granule pebbles dissolve well into the water for easy DIY granular aquatic herbicide application. Semera can also be mixed with water and applied using a tank sprayer.
Semera controls a wide range of nuisance lake weeds and pond plants effectively and quickly.

Manufactured by Atticus LLC.

Aquatic Herbicides Water Use Restrictions (according to label):

  • Swimming: 0 days
  • Drinking Water: 0 days
  • Domestic Uses: 0 days
  • Fish Consumption: 0 days
  • Irrigation, Food/Crop: 5 days
  • Irrigation, Turf/Ornamental: 5 days
  • Livestock Watering: 0 days

Additional information

Options

Semera SC 8oz – $74.00, Semera WDG 1lb (treats up to 1 acre) – $115.00

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