Contact toxicity of 17 insecticides applied topically to adult bark beetles

Robert L. Lyon

Treesearch

Contact toxicity of 17 insecticides applied topically to adult bark beetles

Informally Refereed

Authors:

Robert L. Lyon

Year:

1971

Type:

Research Note

Station:

Pacific Southwest Research Station

Source:

Res. Note PSW-RN-249. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 6 p

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Download (PDF 380 KB): https://research.fs.usda.gov/download/treesearch/31294.pdf

Abstract

Thirteen insecticides were tested against Ips paraconfusus Lanier, and six against the western pine beetle (Dendroctonus brevicomis Lec.). The ranking of toxicity at LD₉₀ by topical application to I. paraconfusus was: SD 3450 > endosulfan > malathion > lindane > phorate > carbayl > carbophenothion = Imidan > crotoxyphos > dimethoate > DDT > Dilan > trichlorfon. The ranking of toxicity to D. brevicomis was: Zectran = dichlorvos > Dursban > malathion > pyrethins = Endane. Five compounds-Zectran, Dursban, malathion, dichlomos, pyrethrins-show promise for study as possible alternatives to lindane, which is now commonly used for bark beetle suppression.

Keywords

Ips paraconfusus, Dendroctonus brevicomis, toxicity tests, Zectran, Dursban, malthion, dichlorvos, pyrethrins, lindane

Citation

Lyon, Robert L. 1971. Contact toxicity of 17 insecticides applied topically to adult bark beetles. Res. Note PSW-RN-249. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 6 p