The milky juice present in the stems and fruit of the Osage-orange may cause irritation to the skin. While the fruit have been suspected of being poisonous to livestock, studies conducted in several states have been negative. However, the fruit may cause death in ruminants by lodging in the esophagus and preventing eructation or release of ruminal gases.
April - found this is the Horticulture & Home Pest News. You may be on the right track. Keep at it. Good luck.