Slugs are never going to win any beauty contests. There are over 30 species of these slimy creatures. They seek out damp, cool places to hide. Lift a rock or a piece of wood in your yard, and you might see a few. Slugs are most active for two hours after sunset and two hours before sunrise. They munch on seedlings and ornamental plants, and they particularly love hostas. If you see large round holes in your plants' leaves, you're looking at the remains of a slug feast.
Find out how to control slugs
Spider mites are like little garden vampires. They bite and suck the fluids out of your plants. They can leave white or yellow speckles on plant leaves, or even kill the entire
plant. They are tiny and hard to see. When the infestation is bad, you'll see fine silk webbing on your plants.
Find out how to control spider mites
These sap-sucking insects can weaken your plants. They can pass viruses from one plant to the next, and generally stunt your plants. Look for them under leaves and along stems.
While they have natural predators, you can also protect your plants from aphids with control products.
Find out how to control aphids
These are the adolescent stage of butterflies and moths, but not all of them grow up to be beautiful monarchs and swallowtails. Some, like the tomato hornworm and gypsy
moth caterpillar, are true pests. They can strip a plant of its leaves in no time. Many have a favorite type of plant in your garden they prefer to munch on.
Find out how to control caterpillars