What should I do if I find a brown bug with a yellow stripe on its back in my garden?

If you find a brown bug with a yellow stripe on its back in your garden, you should first try to identify the bug to determine if it is harmful or beneficial to your plants. If it is harmful, you can remove it manually or use insecticidal soap to control the population. If it is beneficial, you may want to leave it alone as it could be helping to control other pests in your garden.