[waliz]

ihave noticed small holes in my onion stemsand when i opened one up i found green catapiller inside could you tell me what kind of caterpiller is it and will it damage the bulbs

[bravemurphy]

I pulled a few of mine today because of what sounds like the same thing also had it on my leeks last year at this time of year and it was this,
https://www.rhs.org.uk/advice/profile?PID=652