How many fatalities occur in the tree care industry? Between 1992 and 2007, approximately 1,285 workers died while performing tree care and maintenance. Nearly half of these fatalities occurred when someone was trimming or pruning a tree (2009). By ProMatcher Staff Updated: 08/04/2016 Next Question Source: CDC Next Question Find Local Pros Free Actuaries Cost Estimates Related Questions How Much Do Tree Injections Cost? How Deep Do Stump Grinders Go?Top answer: 8-12 inches below grade Do Tree Roots Keep Growing After a Tree is Cut Down?Top answer: In some cases Does potassium nitrate remove stumps?Top answer: Not sure Does Stump Grinding Kill the Roots?Top answer: Yes