Managing the world’s largest rainforest is a Brazilian affair and foreigners should stop meddling in the Amazon, President Jair Bolsonaro’s top security adviser said in an interview.

“I don’t accept this idea that the Amazon is world heritage, this is nonsense,” General Augusto Heleno Pereira said in an interview in Brasilia. “The Amazon is Brazilian, the heritage of Brazil and should be dealt with by Brazil for the benefit of Brazil.“

Pereira’s comments coincide with government plans to review existing conservation areas amid growing pressure from mining and agriculture lobbies. This month the president canceled a trip to New York...