mulberrys in season- a few ?'s on them

[little leaf]

will the roaches eat them , I did not see them on "the list" - but I know they can eat the leaves, and also, can they be frozen and used later? we have about 19 trees, 7 of them have the berries - the other are "male" tress - but I hate to see alllll those berries go to waste - will the silk worms also eat the berries, or just the leaves ?

thanks