The Brazilian Soy Producers Association plans to appeal a federal judge’s decision that suspended the use of glyphosate, an herbicide widely used on soy and other crops, as well as two lesser-used pesticides, the group’s president told Bloomberg Environment.

The Aug. 3 ruling by federal judge Luciana Raquel Tolentino de Moura of the seventh regional federal court in the capital city of Brasilia, said that new pesticides containing glyphosate, thiram, and abamectin couldn’t be...