BeetleBlock-MCH is the anti-aggregation pheromone that repels Douglas Fir Beetles and Spruce Beetles in an area or individual trees. The pheromone repellent is enclosed in a controlled release dispenser that is stapled or nailed to trees during the beetle season.
Control of both Douglas-Fir and Spruce Beetles has been excellent as demonstrated by the USFS and State Foresters.
How to use BeetleBlock-MCH:
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You need these in mountain states to repel the pine beetles. Do your part for the environment and protect your trees!
I buy these to keep the douglas fir beetles off of my trees. They keep the beetles away! 2019 is supposed to be the worst year for beetles yet. I think we will be ok though. Best price we have found online.