Prevent mass attack with anti-aggregation pheromones. These pheromones are important components of pest management that function by signalling to incoming beetles that a potential host tree is too crowded. Anti-aggregation pheromones have been shown to be extremely effective where mass attacks are likely.
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Douglas-fir Beetle
(Dendroctonus pseudotsugae)
MCH is an anti-aggregation pheromone for use against Douglas-fir Beetle. The active ingredient is contained in an inert plastic release capsule (bubble cap).
MCH Bubble Caps are stapled to susceptible standing and downed tree trunks at 10-12 m (yd.) intervals. Deploy just prior to anticipated beetle attacks (February-April; weather, latitude and elevation dependent). |
Average dose:
Douglas-fir beetle: 30-45 bubble caps/acre (75-112/ha)
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| Attractant pheromone Seudenol |
Anti-aggregation pheromone MCH | |
MCH Bubble Caps are registered with the US Environmental Protection Agency. Ask for our approved label. Note: This product is not available for use in California.
MCH Bubble Caps may also prove effective in reducing infestations of the Spruce Beetle (Dendroctonus rufipennis), however test results have been variable. |
