Sistemic activity of benomyl at different pH levels in black pepper

Abstract

The systemic activity of benomyl (methyl -1 - (butil - carbamoyl) - 2 - benzimidazole carbamate) was detected in black pepper plants when the product was tested at 2,500 ppm, 5,000 ppm and 10.000 ppm dosages and 2.0, 2.2, 2.4 and 4.9 pH levels. The product prevented the colonization of plant tissues by Nectria haematococca (Fusarium solani f. sp. piperis) when it was applied before inoculation. There was a trend for a more intense absorption of nonacidified solution when compared to the acidified solution.