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Chemical defoliation of rubber in Bahia

, : Chemical defoliation of rubber in Bahia. Pesquisa Agropecuaria Brasileira 18(5): 507-514

Defoliation is used to control leaf blight (Microcyclus ulei). Merphos (tributyl phosphorotrithioite) at 2.1 kg/ha was applied by aerial spraying, MSMA at 3 kg/ha by aerial and ground spraying, and thidiazuron at 0.3 to 0.75 kg/ha by aerial spraying and fogging. Merphos gave good defoliation and was resistant to washing-off by rain. MSMA also gave good defoliation and was relatively cheap. Thidiazuron at 0.75 kg/ha applied by fogging was unsatisfactory.

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Related references

Romano, R.R.o, S., 1983: Chemical defoliation in rubber in Bahia State Hevea, Brazil.1. Pesquisa agropecuaria brasileira8(5): 507-514

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