Why are there white bugs on my tomato plants and how can I get rid of them?

The white bugs on your tomato plants are likely whiteflies, which are common pests that feed on plant sap. To get rid of them, you can try using insecticidal soap or neem oil, introducing natural predators like ladybugs, or using reflective mulch to deter them. Regularly inspecting your plants and removing any affected leaves can also help control their population.