How to Take Care of Inchworms

Ways to adopt and nurture your very own pet inchworms

Co-authored by wikiHow Staff

Last Updated: August 5, 2024 Approved

Inchworms are a pretty low-maintenance pet that are great for young children. You simply keep them in a suitable habitat, feed them leaves, and let them go when they turn into moths. Knowing when and where to look for them will help you find one early so you can enjoy them for as long as possible. However, inchworms can be pretty devastating to plant life in large numbers, so if it looks like you have a whole lot of them in your garden or yard, there are a couple easy steps you can take to reduce their numbers.

Method 1

Method 1 of 3:

Caring for Pet Inchworms

Download Article

1
Prepare a habitat. Purchase a terrarium with a ventilated top from a pet store. Or, make your own habitat with a lidded container made of glass or plastic. Poke several small holes through the lid with a thin nail or similar tool (no thicker than the tip of a pencil) so air gets in, but the worm doesn’t get out. Line the bottom with about an inch of dirt or wood shavings. ^{[1]
X
Research source}
- Inchworms aren’t that strong, so you can use aluminum foil, plastic wrap, or something similar as a lid so poking holes is easier.
- Pick a spot for it on a windowsill or near a window so your inchworm gets plenty of sunlight.
2
Hunt for them in spring. Be aware that inchworms have pretty short lifespans. Expect them to cocoon and turn into moths toward the end of summer. So, to spend as much time with them as possible, look for them soon after they first hatch from their eggs in spring. ^{[2]
X
Research source}
- Eggs typically hatch when the weather rises to 50 degrees Fahrenheit (10 degrees Celsius). ^{[3]
  X
  Research source}
- When they first hatch, they’re very, very small, which means they’re harder to find.
- They usually take about three months to grow full-sized (about an inch long, or 2.5 cm). ^{[4]
  X
  Research source}
Advertisement
3
Include leaves and stems in your habitat. There are thousands of different types of inchworms, and each one eats different foods. ^{[5]
X
Research source} So when you find one for your habitat, also trim some of the leaves and pieces of the stem from the tree or plant that you find them on. Add these to the habitat so your inchworm has something to eat. ^{[6]
X
Research source}
- Remember which tree or plant you found them on, or at least what type it is.
- This way you can collect more leaves if needed to keep your inchworm fed.
4
Check your inchworm daily. Check the leaves and stem pieces that you added to make sure it has enough food. Once they look like they’re beginning to rot, clean out the habitat and collect more leaves, stems, and dirt from outside. Spray a mist of water inside every so often so they stay hydrated. Also, keep fresh air circulating in the room by keeping the window open. ^{[7]
X
Research source}
- If it’s too cold or hot outside to keep your window, at least crack it open a few times throughout the day.
- Eventually they will cocoon themselves and then turn into moths. Keep their area moist and with sufficient light; they will turn into moths in about a few weeks. When that happens, you need to let the moths go outside. Simply unseal the container in the area that you originally found the inchworm.

Method 2

Method 2 of 3:

Finding Inchworms

Download Article

1
Look for signs of feeding. Check leaves of trees and plants for lots of little holes, which show where inchworms have been munching. Also look for leaves that have been stripped totally clean. They’ve probably moved on from that leaf by now, but this shows they’re in the immediate area and will help narrow down your search. ^{[8]
X
Research source}
- Since you’re probably searching during the spring, plants and trees may still be blossoming. If so, you can also check the buds for signs of munching, since inchworms will eat those, too. ^{[9]
  X
  Research source}
2
Search in shaded areas. Lots of animals feed on inchworms, so expect them to hide. Check the underside of leaves to see if any are clinging directly to them. ^{[10]
X
Research source} Also check for them in midair, since they spin webs just like spiders, and may be dangling well below leaves and branches. ^{[11]
X
Research source}
- You may also find them on the ground, but this usually happens when they’ve fully matured and are ready to cocoon underground. So if you’re looking for inchworms to keep as pets, these are no good, since they’re ready to change into moths.
3
Check areas with crowded vegetation. When an inchworm is done feeding on a leaf or plant, it spins a web long enough for it to swing to the next, like a rope. ^{[12]
X
Research source} So look where the leaf cover is pretty dense, where they can do this more easily. Also, since each type of inchworm feeds on different types of food, look in areas with lots of the same type of plant or tree. ^{[13]
X
Research source}
- If you’re looking in trees, also check the plants growing around its base. The inchworms may have worked their way down to them. ^{[14]
  X
  Research source}
Start searching in the daytime, since it’s easier to spot where they’re feeding in natural daylight. Some inchworms feed during the day, so you may find them right away. If not, this particular type may be nocturnal, so grab a flashlight and double-check after dark. ^{[15]
X
Research source}

Method 3

Method 3 of 3:

Taking Care of Infestations

Download Article

1
Identify signs of damage. Inchworms are small and may feed at night, so recognize other signs of infestation, since they may stay out of sight. Look for little holes in the leaves of your trees, bushes, and garden plants. The more you see, the more likely it is that you have a large population of inchworms. ^{[16]
X
Research source}
- Inchworms are commonly attracted to elm, fir, hickory, maple, oak, and pine trees.
- Since they also eat fruit, they can often be found in berry bushes and fruit trees. ^{[17]
  X
  Research source}
2
Ask yourself if it’s really a problem. Before you go through the trouble of trying to solve it, decide if it’s really worth the effort. Consider where you found evidence of inchworms, and how pervasive it is. For instance:
- Individual inchworms don’t eat much, so if you only find sporadic leaves that seem to be eaten, the population is probably small. ^{[18]
  X
  Research source}
- If the leaves in question are confined to trees, the trees may offer enough food to support the population without widespread damage. ^{[19]
  X
  Research source}
- Smaller plant life, like garden plants and bushes, are more at risk, since they offer less material for the inchworms to feed on.
3
Let predators do the work. Lots of small animals feed on inchworms, so encourage their presence. Birds are perhaps the easiest (and preferable) to attract, so hang bird houses and feeders around the affected area. In addition to birds, inchworms are also prey to: ^{[20]
X
Research source}
- Lizards
- Yellow jackets
- Wasps
4
Treat the affected area with pest control. Spray the leaves or the worms directly with insecticides, which are an effective means of dealing with inchworms. Or, if you’re worried about toxins, use a non-toxic remedy. Instead of traditional chemical poison, use a natural pathogen, like bacillus thuringiensis, which you can find online or in garden stores. ^{[21]
X
Research source}
- Bacillus thuringiensis only affects insects, making it an ideal solution for gardens, fruit trees, berry bushes, or other crops.
- Treat the area again next spring to eliminate any eggs that may have been fertilized during your last infestation. Different types of inchworm reproduce at different times, but all types hatch in spring. ^{[22]
  X
  Research source}

Community Q&A

Search

Add New Question

Question

What if I cannot find a good place?

Community Answer

Keep the inch worm where you know nothing will happen to him/her. I keep my inch worm in my room. When I'm at school I put him on my window sill so he can get sunlight, and I always check if he needs new leaves before I leave.

Thanks! We're glad this was helpful.
Thank you for your feedback.
If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow
Yes No

Not Helpful 16 Helpful 163
Question

Do inchworms like water?

Community Answer

Yes, but do not just put water in the cup. It will drown them. They get their water from the leaves they eat. If they are not eating the leaves, make sure you put in leaves that it will eat, to get the needed nourishment.

Thanks! We're glad this was helpful.
Thank you for your feedback.
If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow
Yes No

Not Helpful 12 Helpful 127
Question

Can you touch your inchworm?

Community Answer

As long as you're gentle, go for it.

Thanks! We're glad this was helpful.
Thank you for your feedback.
If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow
Yes No

Not Helpful 13 Helpful 89

See more answers

Ask a Question

200 characters left

Include your email address to get a message when this question is answered.

Submit

Tips

Feel free to handle your inchworms - this is the best way to learn about them up close. Despite their delicate appearance, inchworms are actually pretty tough little bugs, so you won't hurt them.

Thanks
Helpful 0 Not Helpful 0

Tips from our Readers

The advice in this section is based on the lived experiences of wikiHow readers like you. If you have a helpful tip you’d like to share on wikiHow, please submit it in the field below.

When preparing an inchworm habitat, opt for a glass or plastic container with a ventilated lid. Make air holes by poking the lid with a thin tool like a nail instead of cutting the lid, which could create openings too large for containment.
As an organic way to treat inchworm overgrowth, apply the Bacillus thuringiensis pathogen purchased online to affected plants. Unlike toxic chemicals, this naturally targets only insects, so it's ideal for gardens and fruit trees.
Include fresh leaves and stems in your inchworm's habitat daily since these decay rapidly. Check often to remove rotting plant matter and replace it with crisp greens from the type of tree you originally found your inchworm on.
When inchworms have visible damage on most leaves and plants in your yard, it likely signifies a problematic infestation requiring treatment. But scattered minimal feeding may indicate a smaller manageable population.
If your inchworm population outdoors becomes too high, strategically place bird feeders and houses to encourage avian predators like lizards and yellow jackets that will naturally curb inchworm numbers.
Finding inchworms is easiest in early spring when the weather reaches about 50°F. They start out very small after hatching from eggs, so inspect leaves closely to spot tiny new inchworms to adopt.

Submit a Tip

All tip submissions are carefully reviewed before being published

Name

Please provide your name and last initial

Submit

Thanks for submitting a tip for review!

Warnings

If you leave the container inside your house, the inchworms could get loose.

Thanks
Helpful 123 Not Helpful 43
Be warned that inchworms are very easy to lose.

Thanks
Helpful 22 Not Helpful 7

You Might Also Like

[1]

[2]

[3]

[4]

[5]

[6]

[7]

[8]

[9]

[10]

[11]

[12]

[13]

[14]

[15]

[16]

[17]

[18]

[19]

[20]

[21]

[22]

Log in

How to Take Care of Inchworms

Steps

Caring for Pet Inchworms

Finding Inchworms

Taking Care of Infestations

Community Q&A

Tips

Tips from our Readers

Warnings

You Might Also Like

References

About This Article

Reader Success Stories

Did this article help you?

Quizzes

You Might Also Like

Featured Articles

Trending Articles

Featured Articles

Featured Articles

Watch Articles

Trending Articles

Quizzes

Explore Categories