Plan the perfect garden with our interactive tool →

How to Kill Agave Americana

...
agave image by Andrea Pizzolante from Fotolia.com

Agave Americana proves tough to kill for many gardeners. These plants grow to a six to 12 feet in size, according to the Johnson Wildflower Center at the University of Texas. Their spiked leaves make them a hazard for growing along walking paths. Since they grow by rhizomes in the ground, unless you kill these roots or dig them out completely, the agave Americana will return, but you can effectively kill these tough desert plants with some diligence.

Dig up any roots around the agave plant with a sharp shovel. Dispose of these roots in a sealed trash bag and do not compost them.

Saw the agave Americana plant down to the base stem coming from the ground.

  • Agave Americana proves tough to kill for many gardeners.
  • Since they grow by rhizomes in the ground, unless you kill these roots or dig them out completely, the agave Americana will return, but you can effectively kill these tough desert plants with some diligence.

Soak a sponge brush with undiluted glysophate herbicide and immediately coat over the cut portion of the agave root.

Repeat digging up and coating the roots of any more agave Americana plants that emerge.

Agave Bugs

Scales include three types of insects and over 1,000 species in North America. This diverse group of bugs can severely damage agave by piercing the flesh of plants and feeding on sap. Snout weevils (Scyphophorus acupunctatus) are serious pests and feed on several species of agave. The brownish-black insects are about a half-inch long and have long snouts. Damaged plants begin to collapse as tissue rot develops, and they eventually die. They are easily recognizable. Commercially available spray pesticides that are stronger can kill pests, but they may damage nearby plants and kill beneficial insects.

  • Soak a sponge brush with undiluted glysophate herbicide and immediately coat over the cut portion of the agave root.
  • Snout weevils (Scyphophorus acupunctatus) are serious pests and feed on several species of agave.

Tip

Look for glysophate herbicide at garden centers.

Related Articles

How to Transplant Agave Plants
How to Transplant Agave Plants
Aphids on My Aloe Plant
Aphids on My Aloe Plant
How to Plant Yucca Root
How to Plant Yucca Root
Agave Plant Dangers
Agave Plant Dangers
Agave Cactus & Disease
Agave Cactus & Disease
What Is a Yuka Plant?
What Is a Yuka Plant?
How to Cut Aloe Roots
How to Cut Aloe Roots
What Eats Yucca Plants?
What Eats Yucca Plants?
Agave Cactus Dangers
Agave Cactus Dangers
How to Prune Agave Plants
How to Prune Agave Plants
Names of Plants With Thorns
Names of Plants With Thorns
How to Remove Aphids on Mint
How to Remove Aphids on Mint
How to Cut the Spines Off of an Agave
How to Cut the Spines Off of an Agave
Is Agave a Cactus?
Is Agave a Cactus?
What Is the Difference Between a Yucca and an Agave?
What Is the Difference Between a Yucca and an Agave?
What Weed Killer Kills Buckthorn?
What Weed Killer Kills Buckthorn?
Garden Guides
×