These bugs are a group of seven thousand or more species, which are all characterized by their saw-shaped ovipositors (the stinger-like organ that their females use to lay eggs in plants). Let’s learn more about these bugs and what damage they can do to your garden or plantation in this blog. More importantly, you need to act quickly to get rid of these larvae because they can quickly feed on and defoliate your entire plant. If you see a hairless green larva on your plant leaves, you might be forgiven for thinking it will grow into a beautiful butterfly.Īlas, what you have seen is a sawfly larva, and it looks nothing like a butterfly as an adult. Let’s understand how to spot and repel them. The Butternut Wooly Worm is actually a Sawfly, Eriocampa juglandis.Sawfly larvae are one of the biggest pests of the rose plant, pine trees, and many other species of plants like dogwoods, pears, hibiscus, and so on.
Seems someone on BugGuide also entertained the fungus idea. Found them while trying to see if the fly/wasp I sent matches any of their sawflies. This looks a lot like the “Butternut Wooly Worm” images on bugguide.
Your second caterpillar is a Gypsy Moth Caterpillar.Ĭorrection: () Strange White Caterpillar from Oil City Pennsylvania The Cornell University Biological Control website has a photo of an infected Gypsy Moth Caterpillar. The Gypsy Moth Fungus, Entomophaga maimaiga, is an important biological control of this invasive species, and you can read more on the Country Gardener. In trying to research Fungus attacking Caterpillars, we found references to a fungus, Entomophaga maimaiga, that is host specific on Gypsy Moth Caterpillars, but it does not resemble the Fungus in the image you have provided. BugGuide has a big section on Fungus riddled Flies, but not one for caterpillars. It is difficult to determine the species of caterpillar from your photo. Your white caterpillar is, we believe, infected with Fungus that will probably kill it. The third picture I believe is the Gypsy Moth Caterpillar but just wanted to double check. I was hoping you could tell us what it is.
There were 4 of them and I cannot seem to find it anywhere on your website or the rest of the Internet. Recently my fiance and I found this caterpillar (the first two pictures) on a small tree in our backyard in Oil City (Northeastern) Pennsylvania. First, I must say I love your website and check it regularly. I am resending this letter in hopes that you can help me identify the caterpillar we found in our backyard. I emailed you last week but just realized that you requested the location of the bugs found. Strange White Caterpillar from Oil City Pennsylvania
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