Ask-a-Dave's-Gardener: Have these conifers been poisened?????, 1 by Mrsearcher1965

Mrsearcher1965 wrote:
hi everyone,its my first post on here and hopefully someone can help me?.sadly my dads grave is looking rather horrid after these conifers have died.they started to brown from the top a couple of months ago and today they look like this!.also is it possible to get a report somewhere if i send a sample to determind my worst fears.they are 8 years old and no others have been affected around hes plot.any suggestions would be greatly appreciated.
regards
john