Which insect is small, black-and-white, and feeds on cereal grasses?

The chinch bug is indeed the correct answer as it is a small insect that typically appears black with distinctive white markings, particularly on its wings. This insect is well-known for its feeding habits, primarily targeting cereal grasses and other turf grasses. The chinch bug uses its piercing mouthparts to suck the sap from plants, which can lead to significant damage and wilting as it feeds.

Recognizing the specific characteristics and feeding behaviors of the chinch bug is crucial for effective pest management, especially for agricultural crops and lawns. Understanding its life cycle and preferred habitats can help in developing targeted control measures to mitigate its effects on cereal crops. This insight into the chinch bug's biology and ecology makes it an important subject for anyone studying pesticide application and management practices.