Creeping thyme - patches of large plant seem to be dying
I recently noticed an otherwise healthy creeping thyme (red thyme) plant of mine that is 4 years old has small patches where the thyme has died out. The plant is about 4 ft wide by 2 feet long. Yearly I have cut out small sections to ensure the center does not die out and it has done very well for me. This past week I notices that small sections about 4 inches by 4 inches seem to be dried right out and dead in the middle of the plant. I did also notice there are some bugs nesting in there (aphids, mosquitos, nats or something - not quite sure)Any suggestions?