Beetleblock MCH, Available Now! Beetleblock MCH
EPA Registered Product 2015, Directly from Manufacturer,Beetle Block for the Douglas Fir Beetle Douglas Fir Beetle, Dendroctonus pseudotsugae
by Chemtica USA / Chemtica Internacional Beetleblock MCH
Chemtica 2015.
The antiaggregation pheromone, BEETLEBLOCK MCH, is highly effective in
repelling Douglas fir beetle, Dendroctonus pseudotsugae, and preventing the
infestation of trees by Douglas fir beetle. MCH has been used operationally
in the Pacific Northwest and Rocky Mountains since 2000 to protect
high-valued trees and stands from Douglas fir beetle infestation. MCH is
applied in the spring before Douglas fir beetle flight, which usually begins
between late April and mid-May in the interior Pacific Northwest and Rocky
Mountains depending upon weather and elevation.
The pheromone is formulated in plastic bubble dispensers that are stapled to
trees in a grid pattern in the area to be treated.
The pheromone elutes from the bubble dispensers throughout the main flight
period which occurs between mid May and early July. Because Douglas fir
beetle outbreaks last several years, stands need to be treated each spring
as long as Douglas fir beetle populations remain high.
In a recent study BEETLEBLOCK MCH decreased Douglas fir beetle in infested
stands by 90% and decreased infested trees from 12.6/ha to zero.
(High Release Rate 3-Methylcyclohex-2-en-1-one Dispensers Prevent
Douglas-Fir Beetle (Coleoptera: Curculionidae) Infestation of Live
Douglas-Fir, D. W. ROSS AND K. F. WALLIN, Department of Forest Science, 321
Richardson Hall, Oregon State University, Corvallis, OR 97331-5752, J. Econ.
Entomol. 101(6): 1826-1830 (2008)
Directions for application: Staple BEETLEBLOCK-MCH dispensers 6
