need lindane spray for the bark borers on my 50 year old elm trees. Nothing works except lindane
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Have called exterminators but they no longer do any tree maintenance . Am desperate. Lindane has saved our trees in the past. If there is another product Dursban or something I would try it. We have watered the roots with a bayer product that is a systemic however it might take a month to work and we want to be sure to kill the borers. We have had to cut down trees in the last year because we ran out of lindane. Please help.