"You only know how to do evil, to use a pen largely for evil. Your chance of surviving is quite a bit lower."
The court had included Weintraub in an investigation of an alleged libel and disinformation network run by Bolsonaro's supporters.
If there is another increase in deforestation in July, Brazil is headed for annual deforestation of more than 15,000 square kilometers, or an area larger than Connecticut.
The president's office said those provisions in the law, approved by Congress, were "against the public interest" and "unconstitutional."
Brazilians had the second-highest number of confirmed coronavirus cases in the world behind the United States: nearly 1.6 million, including some 65,000 deaths.
Bolsonaro is reportedly feeling better after starting treatment, which includes taking the drugs hydroxychloroquine and azithromycin.
Bolsonaro has minimized the gravity of the novel coronavirus, dismissing it "a little flu," and has accused state governments of exaggerating the number of infections and deaths to undermine him.
"The cumulative data ... does not reflect the moment the country is in," Bolsonaro said on Twitter.