Bug Library

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INDIAN MEAL MOTH
Description: About 3/8" in length with gray markings on the inner wing and bronze markings on the outer wings.
Habitat: Commonly infest grain and flour products that are often found in kitchen cabinet areas. They are also attracted to light and can be seen flying in a zig-zag pattern around the kitchen.
Damage, Symptoms: Both the adults and their larvae attack almost any dry food and infest it. The larvae are particularly infesting leaving silken threads that web food particles together.
Chemical: Force spray (ready to use propoxur, chlorpyrifos or pyrethroid) into cracks and crevices; allow to dry; cover shelves with clean, fresh paper. Do not contaminate food or utensils with insecticides.
Nonchemical: Discard infested packages. Thoroughly clean and vacuum food cabinets and shelves. Keep dry food in tightly sealed containers. Keeping nonhuman food at 32? F for 3 to 4 days will kill eggs and larvae.
IRIS BORER
Description: In the larvae stage, they are small, pink caterpillars with brown heads. They grow larger and turn brown in color as they mature until they enter adulthood as a brown moth.
Habitat: As their name suggests, they primarily feed on irises.
Damage, Symptoms: Adults lay eggs on the leaves, which hatch in the spring. The caterpillars then bore into and feed on the leaves, working their way down the iris. Often their prescence can be detected by a brown streak they leave behind.
Flower: Apply dimethoate (4 tsp per gallon of water) when irises are in bloom, but not on blooms and make only one application. Add a small amount of liquid detergent to spray mix to improve coverage on leaves.
LEAFHOPPER
Description: Adults are green, yellow or brown: rarely more than 1/4 inch long; wedge-shaped. Immature forms resemble adults and are easily spotted by their sideways movement.
Habitat: All turf grasses, dichondra, and fruit, nut and ornamental trees as well as most garden vegetables are attacked by various leafhoppers.
Damage, Symptoms: Due to leafhoppers feeding on underside, leaves curl or roll downward, crinkle and turn yellow or red-brown. Some plants may become dwarfed, even die. These insects also might transmit several important plant diseases.
Vegetable: The Potato Leafhopper feeds on potatoes and beans. To treat apply carbaryl or malathion 3 to 4 times at weekly intervals starting in late May or early June. Late potatoes and beans require additional treatments.
Flower: Spray foliage with carbaryl (2 tbl. per gallon of water) or acephate (4 tbl. per gallon of water). Repeat treatments if needed.
MEALYBUGS
Description: Small, oval bugs with white powdery or waxy residue dusted all over their bodies.
Habitat: They feed on a wide variety of plants both indoor and outdoor including ferns and begonias.
Damage, Symptoms: Mealybugs have sucking mouth parts that feed on juices of plants. This will cause the plants to discolor and wilt. They also produce large amounts of honeydew which can coat the plant and cause a black fungus to grow.
Tree/Shrub: Spray foliage thoroughly using acephate, malathion or insecticidal soap and with force. Repeat in 2 weeks.
Flower: Spray foliage thoroughly with malathion (2 tsp. per gallon of water), acephate (4 tsp. per gallon of water) or insecticidal soap (follow label directions). Repeat treatments may be needed.
MILLIPEDE
Description: Sometimes called thousand- legged worms they're brown, strong smelling elongated, have several uniform body segments with two Pairs of legs on each segment.
Habitat: Found mostly under rocks, boards, compost or other sheltered areas, they feed on roots, tubers, bulbs, fleshy stems and seeds. In Florida the tropical millipede is considered a lawn pest.
Damage, Symptoms: Damaged plants, near heavily infested areas may indicate nuisance levels have been reached.
Nonchemical: Correct situations where moist habitats occur such as crawl spaces, poorly drained areas, and piles of trash, mulch, or compost. Remove indoors by vacuuming.
MIMOSA WEBWORM
Description: About 1" in length with a grayish to green body and black head.
Habitat: Honey-locust and silk (mimosa) tree.
Damage, Symptoms: Like their name suggests, the mimosa webworms form a web around groups of leaves they intend to eat.
Tree/Shrub: Spray foliage thoroughly with acephate, malathion or Bacillus thuringiensis when first nests appear (June, July). A repeat treatment or second – generation larval feeding may be needed (August).
PERIODICAL CICADAS
Description: Periodical cicadas is another name for the 17 or 13 year cicada. They are roughly 1-1/2" in length with black bodies and clear wings. They have red eyes and legs.
Habitat: They attack many different trees including oak, maple, peach hickory and cherry. They tend to stay away from conifers.
Damage, Symptoms: The most damage is done by the females who puncture tree barks and limbs to insert their eggs. For fruit and smalls trees this is especially devastating as the trees may not grow normally and the fruit crop is reduced.
Tree/Shrub: Spray all branches thoroughly with carbaryl when adults appear. Repeat in 7 to 10 days. Protect very young trees (less than 2 inch diameter) with screening around the top and trunk.
PHARAOH ANT
Description: Small (about 1/16" long), light yellow to reddish in color with a darker hind part of the body.
Habitat: Prefer dark warm areas, such as those near hot water pipes. Nests are very small and usually occur in wall voids. Most commonly found in the Southern states due to their temperate requirements, but can be found in the Northern states indoors.
Damage, Symptoms: Feed on foods that ants rarely attack such as sweets, dead insects and soap. Become a major problem in hospitals because of their ability to spread disease after feasting on used bandages.
Chemical: Indoors: Place methoprene or boric acid baits near ant food and water sources and in other areas where ants are found. Treat for several weeks, replacing bait as it becomes dry.
Nonchemical: Follow suggestions above for other ants. Apply petroleum jelly or double-sided tape to furniture legs to keep ants off of furniture.
POWDER-POST BEETLE
Description: 1/8-1/4" long with slender reddish-brown or black bodies.
Habitat: Most common of the wood-boring beetles in the U.S.
Damage, Symptoms: Attack the sap of hardwoods, most notably oak and hickory, as evidenced by small, round holes in the wood.
Chemical: Use chlorpyrifos to paint or spray infested unfinished wood. Follow label directions.
Nonchemical: Avoid buying furniture of wood products that have not been stained, varnished or properly dried. Properly paint or varnish new wood items to seal pores and to prevent egg laying.

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