Carrying NZ hop pellets into the USA?

Sorry if this is an obvious question I’ve looked all over the US customs pages and come up blank.

Can anyone tell me if I am allowed to bring small quantities of New Zealand (sealed) hop pellets into the US when I return from holiday? They’ve got some lovely varieties down here that I’d like to bring home with me.  But, I don’t wanna buy them only to hand them over to the customs inspector. Any information much appreciated!

Friends from NZ visited me last summer and brought along a lb. of pellets.  I don’t think the had to smuggle them.  But you be best off asking customs people, not homebrewers.