It's not uncommon to feel confident in your ability to dismantle a dead tree with heavy equipment and complicated rigging, but at the same time to feel insecure about your ability to diag-I nose and nurse a sick tree back to health with chemical-basedtreatments. For the arborist considering adding plant health care (PHC) to their service offerings, making the jump to pesticides, including restricted-use pesticides (RUPs), can be daunting due to the tight regulations around these chemicals. RUPs aremore volatile than other pesticides on the market, and thus can cause more damage to trees, the environment and the people who come into contact with them.
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