Creeping Charlie (Glechoma) "Inch Worms": Need Pest ID

"Inch worms" on Creeping Charlie could be several caterpillars. Insecticidal soap failing suggests wrong pest or application issue.

Need for Diagnosis

Please provide:

• Photos (email to wcreed@HorticulturalHelp.com).
• Description: color, markings, legs (true legs + prolegs?), movement (looping?), silk/webbing.
• Plant location: indoor/outdoor, light, watering.

Possibilities

• Geometer moth larvae (true inchworms): Looping gait, 2 pairs prolegs.
• Cutworms/armyworms: More legs, nocturnal.
• Sawfly larvae: 6+ pairs prolegs, often gregarious.

Correct ID = correct treatment. Photos are fastest.