This cabbage leaf has been destroyed by slugs and snails. How can you tell? You can see the extra large holes starting in the middle of the leaf. Also you can see very subtle streaks in the plant from the slimy pests slithering across this once green vegetable.
Spider mites have have overtaken this bush. You can identify the pest because the mites attack one side and then move into the other areas, turning the leaves yellow. Often with other bushes they will leave evidence of tiny spider webs.
Aphids are commonly found on the bottom of the leaf. They will invade by the thousands. They are microscopic, green, and cause a huge threat to any gardener wanting a healthy garden.
Earwigs damage is often smaller than snails and slugs. They will often invade fruit, rose petals, and other leafy plants. The damage will usually start on the edges of the plant and work inward.
Unlike the above examples, here is damage resulting from over-watering or under-watering. Over-watering is often overlooked by many homeowners. The leaves start to curl and turn brown. Under-watered plants will droop.
In your plant and flower garden there are various types of damage that can happen to your plants and bushes. The following plants are damaged by pests.