They are bad for the garden, although they won't do much at the ground level, but they will quickly climb to leaves higher up and eat the buds off flowers.
Absolutely! Lorde has a very low female voice, and at 17 she was the youngest solo artist to achieve a number-one single on the US Billboard Hot 100 since 1987.
There are several methods. You can use a garlic spray that is typically homemade or you can use the beer trap method. Spraying them with cold coffee can also kill...
Keep your garden area as clean and free of debris as possible. Keep the plants clean, remove any dead foliage, make sure there's not a bunch of mulch down around...