[Candide]

I got some daikon radish in modules in back yard.  Summat's nibbling em;  quite drastically for a few of them.  Cabbage whites have been hanging about that area so gurgled and found that daikon are a brassica.  However, can't see any eggs or caterpillars.  Slug pellets and a beer trap all present and correct.
Am I right in assumptions?  Any suggestions?  And should I net them when planting out?
Thanks in advance, once again

[Yorkie]

Are they eating the radish leaves or radish crop?

[Candide]

The leaves

[Yorkie]

Could it be birds? It's been so hot and dry, they might be eating leaves.

[cc]

The birds eat the leaves of my beetroot and my chard if I don't net them. They are very fond of beetroot leaves.

[Candide]

The memsahb has a bird feeding policy so spadgers fly in - them praps.
I've moved the hoops and net that covered summer cabbage;  best put them under there then when they go up the plot.
Where, despite all the pigeons, chard and beet tops are not touched by them.
Thanks folks