Spotty rocket leaves

[caroline7758]

I've got a big clump of rocket (think it's wild rocket) and noticed today all the leaves are covered in spots. they look like rain splash/ scorch but are all over the plant. Can anyone tell me what it is and whether it's ok to put the leaves in the compost?
Thanks.

[caroline7758]

[saddad]

Almost certainly flea beetle Caroline... if they grow on then it can be ignored but a bad attack will kill the seedlings off. 

[caroline7758]

This is on an old plant in its second year.

[saddad]

There are some rust like fungi that attack old brassicas... if in doubt pull it out!