DuPont surrendered more than 37,000 documents to comply with a court order requiring the maker of the shelved fungicide Benlate to produce documents in a lawsuit dating back to 1992, but attorneys for growers claim that 67,000 more are still needed.

Five Miami-Dade growers suing DuPont claim some of the newly disclosed documents reveal a long-running cover-up — relevant documents were misfiled or mislabeled in a discovery fraud.