This has not been shown to cause acute or chronic symptoms in exposed animals. Diflubenzuron may be a hazard to endangered insect or aquatic invertebrate species if it is applied to areas where they live. In laboratory tests in rabbits, diflubenzuron was a slight irritant. Diflubenzuron was a moderate sensitizer to guinea pigs. Subchronic dermal exposure of rabbits to diflubenzuron caused sporadic transient redness and a lowered oxygen-carrying capacity of the blood.
More information is required.
Additional mutagenicity studies are required. The data reported above are results of animal studies which the Environmental Protection Agency has evaluated in support of the registration of diflubenzuron. These data are used to make inferences relative to human health. Based on the results of animal studies, diflubenzuron does not cause genetic damage, cancer or birth defects, and has no effect on fertility, reproduction, or development of offspring. Petroleum oil may also cause cancer.