Great reference book for insects and diseases of woody plants

by Kristina Hughes Gardening in the mountains is full of challenges, so I am always looking for reliable sources of horticultural information pertinent to our region and our specific issues (like this blog!). And it is especially important to have good information when trying to figure out what’s wrong with a struggling plant. For the past two seasons I have been volunteering at the Jeffco Diagnostic Clinic where people bring us their sick plants for diagnosis. They also bring us insects they suspect might be doing evil in their landscapes, mysterious fungi that have appeared unbidden (often in mulch), and unfamiliar plants about whose identity clients are simply curious. We have to solve all kinds of garden and landscape problems. We have an entire library of resource materials at the Clinic, including compendia of turf diseases and vegetable diseases, books large and small on almost every plant pathology subject. But I have found that there one which is my favorite. I don’t leave hom