What are these light brown shell/cone type things that are multiplying in the soil below my rosemary and basil plants?

General    Texas

Could these small light brown “shell” like cone shape things in the soil be killing my basil plants? Some are hard and dried out and others are soft and squeezable. Upon squeezing the soft ones, a white soft and almost rubbery thing emerges from each cone. Can you please help me identify these peculiar things and determine if treatment is needed to protect my basil and rosemary?

Posted by: Gina (1 point) Gina
Posted: September 22, 2019

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