CLOSED: Some kind of borer

Cincinnati, OH(Zone 6a)

Three of my shasta daisies died this year. I assumed it was due to poor drainage and root rot, since they are planted in the lowest spot of a bed sloping down to the retaining wall that lines my driveway. I didn't worry too much about them since I have to divide the healthy ones anyway and was just going to use the divisions to replace the others.

But today I finally looked at the roots and crown and found these. Any ideas what kind of borer? Strategies for getting rid of it?

Thanks in advance,
w

Thumbnail by winging
Cincinnati, OH(Zone 6a)

Another shot.

Thumbnail by winging
Cincinnati, OH(Zone 6a)

It's a millipede.

West Pottsgrove, PA(Zone 6b)

Did the millipede cause the damage, or did it just take advantage of the injury?

Cincinnati, OH(Zone 6a)

It just took advantage of the injury. According to the info I received from the extension agent, millipedes do not eat living plant tissue. Instead, they eat decayed plant matter and the associated fungi, along with insects and insect eggs. My shastas probably died from root and/or crown rot.

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