Butterworth, E.W.
-
Pheromones.
Sanders, C.J.; Grant, G.G.; Shepherd, R.F.; Silk, P.J.; Butterworth, E.W.; Kettela, E.G.
Year: 1995
Catalog ID: 22361
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
-
Influence of oviposition preference in reduced susceptibility of Ottawa Valley white spruce (Picea glauca) to spruce budmoth (Zeiraphera canadensis) in New Brunswick
Quiring, D.T.; Butterworth, E.W.
Year: 1995
Catalog ID: 20339
Issued by: Atlantic Forestry Centre
Availability: Order paper copy (free)
-
Identification of sex pheromone component of spruce budmoth Zeiraphera canadensis
Silk, P.J.; Butterworth, E.W.; Kuenen, L.P.S.; Northcott, C.J.; Dunkelblum, E.; Kettela, E.G.
Year: 1989
Catalog ID: 7445
Issued by: Atlantic Forestry Centre
Availability: Order paper copy (free)