Corn: UC IPM Pest Management Guidelines, Print (purchase from ANR)
These official UC-approved guidelines for pest monitoring techniques, pesticide use, and nonpesticide alternatives for agricultural crops are essential tools for anyone making pest management decisions in the field. This guideline covers corn.
This is an unbound, hard-copy version of ANR Publication 3443.

Methods to Enable the Coexistence of Diverse Corn Production Systems (courtesy of ANR) 
How to keep a corn field true to the planted variety and reduce the potential for cross-pollination from nearby plantings of other corn varieties.
Agricultural Biotechnology in California series. ANR Publication 8192.