Here's a link to the Hawaii Department of Agriculture's site:

http://hdoa.hawaii.gov/pi/pq/travel-...-hawaiʻi/

Also, you should get the form pictured in the following link onboard the aircraft prior to landing. If you enlarge it, you will notice the first checkbox in the first section on the left is for Fresh Fruit and Vegetables which you are required to "declare" if you are bringing any into the State.

https://www.flickr.com/photos/govisithawaii/2330943739/