Actually, the summary only talks about the distinguishing characteristics of kudzu. And kudzu is a plant so basically, it doesn't eat anything. It just gets it's energy from the sun. Just like other plants.
The food it makes is through the process of photosynthesis. That's what autotroph means.
It does kill them that's why they are considered predators.
Kudzu is not a producer of nuts or fruits, or even leaves that are attractive to Virginia's wildlife. Insects and other animals in Virginia evolved to feed on native plants, and are not normally adapted to process the unusual proteins and carbohydrates in non-native species.