Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to control armyworms [title] Look for early signs. [step] Because they feed at night, you may not see the caterpillars right away. Brown spots on your lawn are often the first sign that you have an armyworm problem.

Ending1: An increase of the number of birds in your yard may be an indication of armyworms. The earlier you treat the problem, the easier it is to control and less damage a lawn will sustain. Ending2: Picking your flowers or the leaves on a tree can also be an indicator. [substeps] Caterpillars seem to form clusters in the summer. Ending3: Potential symptoms include : [substeps] Brown spots on your lawn are present even if you haven't seen one in awhile. The colors tend to be faint and they are mostly nothing more than dark brown spots. Ending4: You should keep an eye out for these signs on your lawn so you can make sure you're not just the one with the problem. Note that if you see large amounts of larger worms on your lawn in the late evening, there may be an advanced infestation that needs to be checked out.

Answer format: ending1/ending2/ending3/ending4