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Photo#443342
caterpillar that ate St. Augustine grass - Spodoptera frugiperda

caterpillar that ate St. Augustine grass - Spodoptera frugiperda
Tallahassee, Leon County, Florida, USA
August 16, 2010
This caterpillar has been eating patches of recently-fertilized St. Augustine grass. I don't normally post pest spp, but I thought that this might be useful. I suspect that it may be a fall armyworm, Spodoptera frugiperda, although that's just a guess.

Images of this individual: tag all
caterpillar that ate St. Augustine grass - Spodoptera frugiperda caterpillar that ate St. Augustine grass - Spodoptera frugiperda caterpillar that ate St. Augustine grass - Spodoptera frugiperda caterpillar that ate St. Augustine grass - Spodoptera frugiperda

Moved

Spodoptera exigua - Beet Armyworm ?
I'm wondering if this is a Beet Armyworm. One of my little guides (Virginia IPM) shows the heads & key features. The Beet Armyworm has the light colored mottled head. Compare with these. The Beet Armyworm also has the dark black spot above the second leg like your image shows. The True Armyworm, Mythimna unipuncta, doesn't have that dark spot.

Oops - I retract that guess. It looks like the dark mark is not above the second true leg, therefore it's not a Beet Armyworm.

Moved
Moved from ID Request. The spot on this one is behind the third leg, so, if we have these right, this is frugiperda.

 
You're right
Good call.