Christmas tree breeder Jim Rockis knows what it looks like when one dies long before it can reach a buyer.
Rockis farms trees in West Virginia and Pennsylvania, where he and other producers often grow their iconic evergreens outside their preferred habitat higher in the mountains. But that can mean planting in soil that's warmer and wetter — places where a nasty fungal disease called Phytophthora root rot can take hold, sucking moisture away from saplings and causing needles to crisp to burnt orange.
