[hammers07]

just harvested 2 cobs from my sweetcorn. Look nice but
there are gaps between the kernels. have I harvested too soon
or has something been nibbling :?:

[SpudtheBinx]

Were they planted in a block? As far as I know each kernel has to be pollenated and if there are gaps it could be due to incomplete pollenation of the cob.

[hammers07]

yes five plants planted together

[peterjf]

think you picked them too early cos the nibblets are last to form , i bet someof the nibblets you did get was whitish in colour ?

[gobs]

yes five plants planted together

Not much of a block or pollination source five plants.  Can very well be a pollination problem.