Nodules formed on carrot in fridge

Question

Is is safe to eat and what caused the rows of nodules?

My e-mail address is [e-mail]

It took about three weeks :”>

Sincerely, Karen

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Answer 1

This type of nodule on carrots is usually caused by the root knot nematode, which infests soil and enters and feeds on the carrots. They should be safe to eat, but infested carrots usually end up tasting bitter.
http://mtvernon.wsu.edu/path_team/DiseaseGallery/carrot-root-knot-1.htm

Crop rotation and other strategies are recommended to deal with this pest:
http://vegetablemdonline.ppath.cornell.edu/factsheets/RootKnotNematode.htm
http://ipm.ucanr.edu/PMG/r102200111.html
http://edis.ifas.ufl.edu/ng021