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Willow Apple Gall Sawfly

Pontania californica

Description:

I was curious to see if they were fungal galls and cut one open and found a larva inside. The plant was covered in them.

Habitat:

Last two photos show the host plant. In a wooded area at the edge of Shollenberger Park

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1 Comment

Tukup
Tukup 5 years ago

Hi Machi. This is really interesting. Recently I've been looking into galls, but not to the point of knowing what I'm talking about yet :-) I did find a similar gall in the following link. Open the link and go down to #7 - Initiation of Plant Galls. About the 4th photo down looks suspiciously like yours. Perhaps you can track it from this site. Good luck and thanks for sharing

https://www2.palomar.edu/users/warmstron...

Machi
Spotted by
Machi

California, USA

Spotted on Nov 5, 2018
Submitted on Jan 26, 2019

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