KEEFEKTIFAN CAMPURAN GARAM TEMBAGA-KHROMIUM- BORON TERHADAP RAYAP DAN JAMUR PERUSAK KAYU

Abstract

The objective of this investigation was to evaluate the toxicity of copper-chromate-boron salts formula against wood termites and fungal attack., The chemicals used. in this experiment werem those of " technical grade " . Results indicated that the preservatives used were highly effective to prevent wood from subterranean termite Coptotermes curvignathus Holmgren and dry wood termite Cryptotermes cynocephalus Light. The preservative brought about 100% termite mortality at 1% concentration 1% and retention of more than 5.30 kg/m 3 . Higher preservative concentration (7.5%) and retention (above 30 kg/m 3