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Entomology (Study of Bugs)/leaf eating insect at backyard


leaf eating insect pic1
leaf eating insect pic  

leaf eating insect pic 2
leaf eating insect pic  
At my backyard in Toronto Canada, I found out a type of insect and there are many of them staying on a type of plant, where the leaves have holes. I supposed that they ate the leaves. Interestingly enough, other species of plants have no such problem even planted near by the problem plant.  

Is it save for human health to keep them in my backyard?
What caution do I need to make?


You're going to have to move immediately!!

No...just kidding!  Hee hee!

These are leaf beetles. There are many species and some are specific to a certain type of plant. The adults and larvae will feed on the leaves of the plant.

They pose no human or animal danger.  

Entomology (Study of Bugs)

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Nathan Riggs


I currently live in San Antonio, TX and have expertise in identifying insects, many types of spiders, and other arthropod critters that infest lawns, ornamentals, structures, trees, pets and livestock. Mites are not a strong point of mine. I'm not a licensed doctor, so I cannot provide medical diagnosis of conditions possibly related to insects or other arthropods. If you've got an interesting photo for me to see, attach it to your question, or let me know and I'll give you my email so the picture will get to me. If you have hosted an insect photo on a website, please include the link so I can go look at it and provide a faster ID for you. You may also join my group page on Facebook and post your picture at


22+ years' experience as an entomologist: 5 years as a biologist with Merck Animal Health (I was part of the R&D team that worked to develop FrontLine flea and tick products) and 7 years as an Integrated Pest Management (IPM) Specialist in San Antonio, Texas with Texas Cooperative Extension.

Veterinary Parasitology, Southwestern Entomologist, San Antonio Express News, San Antonio Gardener Newsletter, Master Gardener SCION Newsletter, GardenStyleSA e-Newsletter

BS - Entomology from Texas A&M University in 1992.

Board Certified Entomologist, 1996-2000 - Medical and Veterinary Entomology Specialty (Entomological Society of America)

Awards and Honors
2000 Texas A&M University Vice Chancellor's Award in Excellence for leadership on the Texas Fire Ant Program Educational Team.

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