Biodegradable Insecticides in Forestry
189
Robertson, J. L., and Boelter, L. M., 1979a, Toxicity of insecticides to Douglas-fir tussock moth
Orgyia pseudotsugata (Lepidoptera: Lymantriidae). I. Contact and feeding toxicity, Can. Entomol. 111:1145.
Robertson, J. L., and Boelter, L. M., 1979b, Toxicity of insecticides to Douglas-fir tussock moth,
Orgyia pseudotsugata (Lepidoptera: Lymantriidae). II. Residual toxicity and rainfastness, Can.
Entomol. 111:1161.
Robertson, J. L., and Gillette, N. L., 1973, Western tent caterpillar: Contact toxicity of ten insecticides applied to the larvae, J. Econ. Entomol. 65:629.
Robertson, J. L., and Gillette, N. L., 1978, Contact toxicity of insecticides to western pine beetle,
Insecticide and Acaricide Tests 3:148.
Robertson, J. L., and Kimball, R. A., 1979a, Effects of insect growth regulators on the western
spruce budworm (Choristoneura occidentalis) (Lepidoptera: Tortricidae). I. Lethal effects of
last instar treatments, Can. Entomol. 111:1361.
Robertson, J. L., and Kimball, R. A., 1979b, Effects of insect growth regulators on the western
spruce budworm (Choristoneura occidentalis) (Lepidoptera: Tortricidae). II. Fecundity and
fertility reduction following last instar treatments, Can. Entomol. 111:1369.
Robertson, J. L., and Lyon, R. L., 1973a, Elm spanworm: Contact toxicity of ten insecticides
applied to the larvae, J. Econ. Entomol. 66:627.
Robertson, J. L., and Lyon, R. L., 1973b, Western spruce budworm: Nonresistance to Zectran, J.
Econ. Entomol. 66:801.
Robertson, J. L., and Lyon, R. L., 1973c, Douglas-fir tussock moth: Contact toxicity of 20 insecticides applied to the larvae, J. Econ. Entomol. 66:1255.
Robertson, J. L., and Rappaport, N. G., 1979, Direct, indirect, and residual toxicities of insecticide
sprays to western spruce budworm, Choristoneura occidentalis (Lepidoptera: Tortricidae), Can.
Entomol. 111:1219.
Robertson, J. L., Lyon, R. L., Shon, F. L., and Page, M., 1973, Western blackheaded budworm:
Toxicity of five insecticides to two populations, J. Econ. Entomol. 66:274.
Robertson, J. L., Lyon, R. L., and Gillette, N. L., 1975, Contact toxicity of 38 insecticides to
pales weevil adults, J. Econ. Entomol. 68:124.
Robertson, J. L., Gillette, N. L., Look, M., Lucas, B. A., and Lyon, R. L., 1976, Toxicity of
selected insecticides applied to western spruce budworm, J. Econ. Entomol, 69:99.
Robertson, J. L., Boelter, L. M., and Gillette, N. L., 1977, Laboratory tests of insecticides on
western spruce budworm, Insecticide Acaricide Tests 2:110.
Robertson, J. L., Boelter, L. M., Russell, R. M., and Savin, N. E., 1978a, Variation in response
to insecticides by Douglas-fir tussock moth, Orgyia pseudotsugata (Lepidoptera: Lymantriidae),
populations, Can. Entomol. 110:325.
Robertson, J. L., Gillette, N. L., Lucas, B. A., Russell, R. M., and Savin. N. E., 1978b, Comparative toxicity of insecticides to Choristoneura species (Lepidoptera: Tortricidae), Can. Entomol. 110:399.
Robertson, J. L., Lyon, R. L., Andrews, T. L., Moellman, E. E., and Page, M., 1979, Moellman
spray chamber: Versatile research tool for laboratory bioassays, U.S. Department of Agriculture
Forest Service Research Note PSW-335, Pacific Southwest Forest and Range Experiment Station, Berkeley, California.
Robertson, J. L., Russell, R. M., and Savin, N. E., 1980, POLO: A user's guide to Probit or LOgit
analysis, U.S. Department of Agriculture, General Technical Report PSW-38, Pacific Southwest
Forest and Range Experiment Station, Berkeley, California.
Rose, A. H., 1958, The effect of defoliation on foliage production and radial growth of quaking
aspen, Forest Sci. 4:335.
189
Robertson, J. L., and Boelter, L. M., 1979a, Toxicity of insecticides to Douglas-fir tussock moth
Orgyia pseudotsugata (Lepidoptera: Lymantriidae). I. Contact and feeding toxicity, Can. Entomol. 111:1145.
Robertson, J. L., and Boelter, L. M., 1979b, Toxicity of insecticides to Douglas-fir tussock moth,
Orgyia pseudotsugata (Lepidoptera: Lymantriidae). II. Residual toxicity and rainfastness, Can.
Entomol. 111:1161.
Robertson, J. L., and Gillette, N. L., 1973, Western tent caterpillar: Contact toxicity of ten insecticides applied to the larvae, J. Econ. Entomol. 65:629.
Robertson, J. L., and Gillette, N. L., 1978, Contact toxicity of insecticides to western pine beetle,
Insecticide and Acaricide Tests 3:148.
Robertson, J. L., and Kimball, R. A., 1979a, Effects of insect growth regulators on the western
spruce budworm (Choristoneura occidentalis) (Lepidoptera: Tortricidae). I. Lethal effects of
last instar treatments, Can. Entomol. 111:1361.
Robertson, J. L., and Kimball, R. A., 1979b, Effects of insect growth regulators on the western
spruce budworm (Choristoneura occidentalis) (Lepidoptera: Tortricidae). II. Fecundity and
fertility reduction following last instar treatments, Can. Entomol. 111:1369.
Robertson, J. L., and Lyon, R. L., 1973a, Elm spanworm: Contact toxicity of ten insecticides
applied to the larvae, J. Econ. Entomol. 66:627.
Robertson, J. L., and Lyon, R. L., 1973b, Western spruce budworm: Nonresistance to Zectran, J.
Econ. Entomol. 66:801.
Robertson, J. L., and Lyon, R. L., 1973c, Douglas-fir tussock moth: Contact toxicity of 20 insecticides applied to the larvae, J. Econ. Entomol. 66:1255.
Robertson, J. L., and Rappaport, N. G., 1979, Direct, indirect, and residual toxicities of insecticide
sprays to western spruce budworm, Choristoneura occidentalis (Lepidoptera: Tortricidae), Can.
Entomol. 111:1219.
Robertson, J. L., Lyon, R. L., Shon, F. L., and Page, M., 1973, Western blackheaded budworm:
Toxicity of five insecticides to two populations, J. Econ. Entomol. 66:274.
Robertson, J. L., Lyon, R. L., and Gillette, N. L., 1975, Contact toxicity of 38 insecticides to
pales weevil adults, J. Econ. Entomol. 68:124.
Robertson, J. L., Gillette, N. L., Look, M., Lucas, B. A., and Lyon, R. L., 1976, Toxicity of
selected insecticides applied to western spruce budworm, J. Econ. Entomol, 69:99.
Robertson, J. L., Boelter, L. M., and Gillette, N. L., 1977, Laboratory tests of insecticides on
western spruce budworm, Insecticide Acaricide Tests 2:110.
Robertson, J. L., Boelter, L. M., Russell, R. M., and Savin, N. E., 1978a, Variation in response
to insecticides by Douglas-fir tussock moth, Orgyia pseudotsugata (Lepidoptera: Lymantriidae),
populations, Can. Entomol. 110:325.
Robertson, J. L., Gillette, N. L., Lucas, B. A., Russell, R. M., and Savin. N. E., 1978b, Comparative toxicity of insecticides to Choristoneura species (Lepidoptera: Tortricidae), Can. Entomol. 110:399.
Robertson, J. L., Lyon, R. L., Andrews, T. L., Moellman, E. E., and Page, M., 1979, Moellman
spray chamber: Versatile research tool for laboratory bioassays, U.S. Department of Agriculture
Forest Service Research Note PSW-335, Pacific Southwest Forest and Range Experiment Station, Berkeley, California.
Robertson, J. L., Russell, R. M., and Savin, N. E., 1980, POLO: A user's guide to Probit or LOgit
analysis, U.S. Department of Agriculture, General Technical Report PSW-38, Pacific Southwest
Forest and Range Experiment Station, Berkeley, California.
Rose, A. H., 1958, The effect of defoliation on foliage production and radial growth of quaking
aspen, Forest Sci. 4:335.