Helena Chemical Company v. Robert Cox, et al.

Summary

The Supreme Court of Texas considers whether farmers produced reliable evidence that Helena Chemical Company’s aerial application of the herbicide Sendero caused reduced cotton yields through herbicide drift. The Court holds that the plaintiffs’ expert and other causation evidence did not reliably establish exposure, sufficient dosage, representativeness across the claimed acreage, or exclusion of alternative causes. It affirms in part and reverses in part the court of appeals and reinstates summary judgment for Helena.

Holdings

1. The plaintiffs' causation evidence did not raise a genuine issue of material fact because their expert opinions were not supported by a scientifically reliable basis connecting Helena's application of Sendero to the plaintiffs' reduced cotton yields.
2. In an herbicide-drift case seeking damages for reduced crop yields, the plaintiff must provide reliable evidence that the crops were exposed to the defendant's product at levels sufficient to cause the alleged lost yields.
3. The plaintiffs' evidence was insufficient because their experts failed to account for plausible alternative causes of the reduced crop yields, including weather and other herbicide applications.
4. The farmers' lay opinions, standing alone, could not establish causation because determining whether aerial herbicide caused reduced yields miles away involved scientific matters beyond common understanding.
5. The Court declined to impose a categorical requirement that every crop-loss plaintiff use USDA field boundaries or present field-by-field proof at summary judgment, but required reliable causation evidence for the entire area for which recovery is sought.

Questions Presented

1. Whether the plaintiffs' expert evidence was reliable evidence of specific causation sufficient to raise a genuine issue of material fact and defeat Helena's no-evidence motion for summary judgment.
2. Whether reliable causation evidence in an herbicide-drift case must show that the crops were exposed to the defendant's product at levels sufficient to cause the claimed reduced yields.
3. Whether the plaintiffs' evidence adequately accounted for plausible alternative causes, including weather and other herbicides.
4. Whether the plaintiffs' lay opinions could establish causation where determining the source and effect of aerial herbicide drift required scientific knowledge beyond ordinary juror understanding.
5. Whether the plaintiffs were required to present field-by-field proof using federal agricultural field boundaries at the summary-judgment stage.

Disposition

other