But it's wise to call in a professional tree care service, to help you diagnose the problem.
The canopy nets of mature trees were installed by professional tree climbers.
Large trees were sampled by professional tree climbers while smaller trees (less than 35 cm dbh) were collected using French climbing spikes (Fonderies Lacoste, Excideuil, France, [40], [41]).
There are jobs for professional tree-climbers (a k a arborists), and although New Yorkers raised amid concrete and brick might not make the likeliest candidates, Mr. Okoro, 25, and his group are learning how to walk on branches and shin up trunks.
"It's like a different biome when you're at the top of the tree," said Brian French, a professional tree-climber and co-founder of Ascending the Giants, a non-profit organisation in Oregon, US dedicated to measuring and preserving the world's oldest and largest trees.
Storks, herons and spoonbills nests are built in trees as tall as 20 m (e.g., in breeding colonies from the Brazilian Pantanal and Amapa state), which can be accessed only by professional tree-climbers.
Smith comes from the professional coaching tree established by Tony Dungy at Tampa Bay, where he learned to remain positive and mastered a defensive system that, in the long tradition of the franchise, has returned the Bears to the top of the N.F.L. in most defensive categories.
But to Michael Taylor, a professional big-tree hunter, there are tantalizing signs of the stump's potential.
It can cost anywhere from $200 to $500 to have a professional remove a tree stump, but if you do it yourself, you can save money, improve your yard's appearance, get rid of a tripping hazard and make the lawn easier to mow.
To keep out squirrels and raccoons, Mr. Padilla and other pest-control professionals suggest trimming tree limbs that are close to the house, screening off or otherwise protecting attic vents, sealing any holes, and installing chimney caps.
It is surely no coincidence, he points out, that among the most active proponents of the new standard are the tree professionals who stand to gain most from a more burdensome inspection regime.
