Name a beneficial insect that contributes positively to cotton health.

The ladybug is a beneficial insect that plays a significant role in maintaining the health of cotton plants. These insects are natural predators of various pests, especially aphids, which can be detrimental to crops, including cotton. By controlling aphid populations, ladybugs help to reduce the incidence of damage and stress on the cotton plants, promoting healthier growth and potentially improving yields.

In contrast, the other insects listed do not have the same beneficial impact on cotton. Spiders, while they may control some pests, are not considered effective in managing pest populations specific to cotton. Grasshoppers tend to feed on cotton plants, which can lead to damage. Termites primarily feed on wood and organic matter in the soil, and their presence can negatively affect soil structure and overall plant health rather than providing beneficial pest control.