Bug Library

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SAWFLY
Description: Sawflies closely resemble flies or wasp, but they have two pairs of wings and do not have a narrow waist. There are many different species of sawflies, but in the adult stage they are brightly colored (red and black or yellow and black). In the larvae stage, they resemble butterfly caterpillars but have more pairs of legs.
Habitat: There is a different type of sawfly depending on the tree or shrub it infests but some of the more common ones include pine, ash and spruce.
Damage, Symptoms: Sawflies are named for the saw-like blade on the female's abdomen that allows them to cut into plant tissue and lay their eggs. Besides this damage, the larvae feed on leaves and cause leaf blotches.
Tree/Shrub: Spray with carbaryl as soon as worms or damage is evident. Handpicking is also effective.
SILVERFISH
Description: Carrot shaped bodies that are flat and elongated. They are covered with scales and have a silvery or gray appearance.
Habitat: They like cool, damp places such as basements, laundry rooms or bathrooms. They are active at night and hide during the day.
Damage, Symptoms: Mostly these pests are just a nuisance but they may consume foods, books or wallpaper.
Chemical: Spray runways, baseboards, closets, and places where pipes go through the walls with ready to use propoxur, chlorpyrifos, or boric acid. Repeat treatments in 2 weeks if needed. Apply boric acid in out-of-reach areas only.
Nonchemical: Alter the physical environment of the infested area by reducing the humidity. Reduce harborage sites by caulking cracks and crevices. Eliminate their food source by storing books, papers, and linens in tightly sealed containers or cabinets.
SLUG
Description: Slugs are grayish and worm-like in appearance. As opposed to snails they do not have a shell on their back. However, they both secrete mucus when they move known as a "slime trail".
Habitat: Slugs are most often found in lawns and flower and vegetable gardens.
Damage, Symptoms: Slugs hide during the day and are active at night when they feed on plants. They like to attack the leaves as well as young seedlings.
Lawn: Apply Mesurol 2% bait where slugs are numerous. Scatter in grass. For use only in flower gardens and shrubbery beds.
Flower: Apply metaldehyde or Mesurol as a bait to soil. Remove old leaves, stalks, poles, boards, and other debris where slugs like to hide and lay eggs. Shallow dishes of stale beer sunk into the ground will attract and kill many slugs.
SOD WEBWORM
Description: Light brown or grayish-white with brown specks and a dark brown head, 1/2 to 1 inch long, covered with fine hairs, they are larvae of small white or gray lawn moths or millers that are often seen flying over the grass in the early evening.
Habitat: Most common lawn grasses.
Damage, Symptoms: Small patches of dead grass clipped off at ground level, presence of adult moths, silken webs in grass leading to silk-lined holes into the ground.
Lawn: As sprays, use carbaryl and at least 2.5 gallons of water per 1,000 sq. ft. Do not water for 72 hours after treatment. As granules, apply from fertilizer spreader. Web-worms usually damage lawns in late July and in August.
SPRINGTAIL
Description: Several species of various colors are found in the U.S.; 1/25 to 1/16 inch long; they jump like fleas by means of a tail like appendage.
Habitat: Damp places in gardens and seedbeds.
Damage, Symptoms: Round holes chewed in stems and leaves of young seedlings.
Chemical: Outdoors: Spray soil next to the house, especially grassy moist areas.
Nonchemical: Eliminate moist areas around the home where mulch and rotting vegetation are present. Keep outside light use to a minimum. Keep screens and doors in good repair. Allow potting soil of houseplants to dry out between watering.
SQUASH VINE BORER
Description: A moth that closely resembles a wasp. They have metallic green wings and a black body with orangish-red markings. In the larvae stage, it is a long, white wrinkled caterpillar.
Habitat: Live and feed primarily off of squash.
Damage, Symptoms: Infestation causes the plant to wilt from the larvae that prevent water and nutrients from getting to the plant.
Vegetable: Make weekly applications with carbaryl to crowns and runners when plants begin to vine. Apply late in day. Cover plants with polyester row covers until blooming starts to protect plants without insecticides in the spring.

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