Preventing Termite Attack By Adding Insecticide to Particleboard, Hardboard and Plywood Adhesive

Fabricated building materials (particleboard, hardboard, and plywood) are susceptible to termite attack if preventive steps are not taken. Three insecticides (chlordane, heptachlor, and HCS-3260 [a modified chlordane that has all heptachlor removed]) were applied to the glue of particleboard, hardboard, and plywood. The samples of the three types of material were cut into 4-inch squares and were exposed to subterranean termite attack in two field exposures in southern Mississippi and the Panama Canal Zone. Samples were also exposed to drywood termites in a laboratory test in the Panama Canal Zone. After 4 years of evaluation, subterranean termite damage was greatest to plywood and least to hardboard. However, heptachlor (0.02%, 0.05%, and 0.10%) and chlordane (0.05%, 0.10%, and 0.20%) protected plywood structurally. Drywood termites damaged treated particleboard only at low treatment levels (0.05% and 0.10%) of chlordane and HCS-3260 and damaged treated hardboard only at the lowest treatment level (0.05 %) of chlordane.

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