Thu
29
May
Q:Recently my husband sprayed an insecticide on some of our young trees to control scale insects. Two days later, the leaves started turning black and brown. A week later, the leaves started falling off. It turns out he used the same sprayer that he uses to treat our lawn for weeds. He thought he rinsed out the sprayer first, but he wasn’t sure.
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Thursday, May 29th, 2008 at 12:12 am
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