Books

Philosophy and insight:

The Secret Garden by David Bodanis

The Omnivore's Dilemma by Michael Pollan

In Defense of Food by Michael Pollan

Practical:

Sunset Western Garden Book 

The New Complete Guide to Beekeeping by Roger Morse

Mastering the Art of Beekeeping by Ormond Abie

Life cycles:

Destructive and Useful Insects by Metcalf, Flint, and Metcalf

Everything:

Google it.  Info from universities, colleges, university extension services, or groups not trying to sell you something is worth the most.