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Tag Archive for: Bougainvillea Looper Caterpillar

Are Caterpillars Eating Your Shrubs? How to Recognize and Treat Them

Shrubs
Caterpillars Eating Shrubs , Yellow Bells (Tecoma stans stans)

Caterpillars Eating Shrubs , Yellow Bells (Tecoma stans stans)

Do you have caterpillars lurking beneath the leaves of your shrubs?

If they look like the yellow bells shrub, pictured above, probably not.

Caterpillars Eating Shrubs

Caterpillars Eating Shrubs

But, if your leaves look as if a vampire came along and sucked them dry, then they are there, whether you can see them or not. Other telltale signs include little black pellets, which are caterpillar ‘poop’. 

Damaged bougainvillea leaves

Damaged bougainvillea leaves

Bougainvillea can also fall prey to hungry caterpillars, who leave behind ragged holes and edges.

So, what do you do?  Nothing?  Or should you pull out all the stops to get rid of them?

I address these questions and more in my latest video:

 
 
 
 

Fall Gardening Tasks for the Southwest Garden

https://www.azplantlady.com/wp-content/uploads/2016/10/Tecoma_stans_stans_Yellow_Bells-001.jpg 640 534 arizonaplantlady@gmail.com https://www.azplantlady.com/wp-content/uploads/2025/08/AZ-Plant-Lady-Logo-small.jpg arizonaplantlady@gmail.com2016-10-20 13:00:002025-08-25 03:53:31Are Caterpillars Eating Your Shrubs? How to Recognize and Treat Them

AZ Plant Lady House Call: What’s Wrong With My Bougainvillea?

AZ Plant Lady, desert gardening, Landscape Problems, Noelle Johnson Landscape Consulting
Bougainvillea

**Disclosure: This post contains an affiliate link of a product that I use in my garden and I recommend to those who are experiencing similar problems.

A week ago, I was called to see one of my regular clients to see how her landscape was progressing since she had installed a lot of new plants at the beginning of summer.

The majority of her plants looked great considering she had planted them at a particularly tough time of the year.

BUT, what caught my attention was her bougainvillea shrub.

Bougainvillea

The leaves were quite ragged and looked like something had been chewing them.

In addition, there were some small black droppings scattered among the leaves.

The diagnosis was relatively simple…

The culprit was bougainvillea looper caterpillars.

Now, you rarely ever see the caterpillar itself.  It is rather small and looks like a yellow-green to brown colored inch-worm.

The signs are ragged leaves that appear to have been chewed along with the black droppings.

My bougainvillea growing in the back garden.  I haven't seen any signs of caterpillar damage yet.

My bougainvillea growing in the back garden.  I haven’t seen any signs of caterpillar damage yet.

If you see similar damage to your Bougainvillea, don’t panic.  Most Bougainvillea can handle the damage from the chewed leaves.

However, if your Bougainvillea is young, or if the infestation is severe, you can help to get rid of the caterpillars by spraying your bougainvillea with a product containing BT (bacillus thuringiensis), which is an organic pesticide.  I use Safer Brand 5163 Caterpillar Killer II Concentrate, 16 oz in my own garden.

In the case of my client’s bougainvillea, I told her that the damage was not severe enough to warrant any treatment.

Some of you may see similar damage to your yellow bells or orange jubilee shrubs, which I wrote about in a previous post, “Oh No, What’s Happened to My Shrubs”.

**In the future, I will be sharing some gardening problems or design challenges that I encounter during some of my consults and their solutions.

My hope is that they can help you in your own landscape 🙂

**********************

I hope you have a great weekend.  We will be celebrating my 3-year old twin nephews birthday at our house tomorrow morning.  I’ll may post a picture or two next week from the party.

My daughter, Rachele, is doing well after the first week of her combat training in Mississippi.  But, she did share some funny stories that I will share with you next week too!

https://www.azplantlady.com/wp-content/uploads/2013/09/Bougainvillea-on-house.jpg 407 640 arizonaplantlady@gmail.com https://www.azplantlady.com/wp-content/uploads/2025/08/AZ-Plant-Lady-Logo-small.jpg arizonaplantlady@gmail.com2013-09-20 22:37:002021-01-20 08:43:34AZ Plant Lady House Call: What’s Wrong With My Bougainvillea?

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noelle-johnson-az-plant-ladyNoelle Johnson: AZ PLANT LADY®

Author, Horticulturist, Landscape Consultant & Lover of Blue Pots

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Shrub Pruning Booklet: Say “No” to ball, square & cupcake-shaped shrubs!

Spiral-bound pruning guide booklet for shrubs

Product of the Month: Leather Gardening Gloves

 

Spring is the busiest time of year for pruning plants. Are your hands ready? A good pair of leather gloves is really important. My Bamllum gloves have a good grip and offer great protection.

 

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