Brazilian President Luiz Inácio Lula da Silva said Thursday that his government has not been successful in trying to negotiate the 50% tariff on Brazilian imports that U.S. President Donald Trump has threatened to impose.

PORCIUNCULA, Brazil (AP) — Brazilian José Natal da Silva often tends to his modest coffee plantation in the interior of Rio de Janeiro state in the middle of the night, sacrificing sleep to fend off pests that could inflict harm on his precious crops.

U.S. President Donald Trump's plan to impose a new 50% tariff on all Brazilian products from Aug. 1 could devastate the South American nation's citrus belt, as factories scale back production and orange farmers consider leaving fruit to rot amid a sharp drop in prices.