Since 1990, the anti-sapstain product Tuff Brite C (ASC 66898) has been evaluated internationally in laboratory and field tests, and has been commercially introduced in New Zealand. The product is an aqueous flowable formulation of chlorothalonil and carbendazim. Efficacy tests which have been carried out in New Zealand, Australia, USA, South Africa and Europe are described and summarized. Tuff Brite C is a highly efficacious product against commonly occurring mold and stain fungi causing degradation of freshly sawn lumber.

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