Updated: April 18, 2023

If you have a century plant, also known as agave Americana, in your garden, you might have noticed some little bugs crawling around the plant. These bugs can be a nuisance and can cause damage to your plant if left untreated. In this article, we will discuss what these bugs are and how you can get rid of them.

What are the little bugs on my century plant?

The little bugs on your century plant are most likely agave snout weevils. These weevils are small black insects that resemble beetles. They are about ½ inch long and have a long snout that they use to bore into the center of the plant. Once inside, they lay their eggs, which hatch into larvae that feed on the plant’s tissue.

Agave snout weevils are typically found in warmer climates, such as the southwestern United States and Mexico. They are attracted to century plants because they provide a good source of food and shelter.

How can I tell if my century plant has agave snout weevils?

If you notice small holes or cracks in the center of your century plant or see little black insects crawling around the base of the plant, you likely have an infestation of agave snout weevils. You may also notice wilting or yellowing leaves or a softening of the center of the plant.

How can I get rid of agave snout weevils?

Getting rid of agave snout weevils can be a difficult task, but there are several methods you can try.

1. Remove infected plants

If your century plant is severely infested with weevils, it may be best to remove the infected plant altogether. This will help prevent the spread of the infestation to other plants in your garden.

2. Use pesticides

There are several pesticides that can be used to treat an infestation of agave snout weevils. These include carbaryl, malathion, and imidacloprid. Be sure to follow the instructions on the label carefully and wear protective clothing when handling pesticides.

3. Attract natural predators

Some natural predators, such as birds and lizards, feed on agave snout weevils. You can attract these predators to your garden by providing food and shelter, such as bird feeders and nesting boxes.

4. Use sticky traps

Sticky traps can be used to trap and kill adult weevils. Place the traps in areas where you have seen weevils crawling around.

FAQ

Can agave snout weevils kill my century plant?

Yes, if left untreated, an infestation of agave snout weevils can weaken and eventually kill your century plant.

How often should I check my century plant for weevils?

It is a good idea to check your century plant for weevils at least once a month, especially during the warmer months when they are most active.

Are there any natural remedies for getting rid of agave snout weevils?

Some people have had success using neem oil or diatomaceous earth to treat an infestation of agave snout weevils. However, these remedies have not been scientifically proven to be effective.

Can I eat my century plant if it has been treated with pesticides?

No, it is not safe to eat any part of a plant that has been treated with pesticides. Be sure to follow the instructions on the label carefully and avoid harvesting any fruits or vegetables from treated plants for a certain period of time after treatment.

In conclusion, agave snout weevils can be a pesky problem for century plant owners. However, by taking preventative measures and treating infestations promptly, you can protect your plant from damage and ensure its longevity.