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Spiders
Daddy-Long- Legs |
Spiders |
Many species of spiders are common
household pests in the United States. Certain common household spiders spin
webs over lamps in corners, and in basements. This is unsightly but causes
no real harm. Remember that every cobweb (lamps, corners, etc.) was not made
by a spider. Although all spiders use venom when they bite and kill their
prey, the black widow, European house, and brown recluse spiders (non of
which create cobwebs indoors) are the only North American species
consistently dangerous to humans.
Many spiders are associated with moisture and, therefore, are found in
basements, crawl spaces, and other damp parts of buildings. Others live in
warm, dry places so are found in subfloor air vents, in upper corners of
rooms, or in attics. Most species hide in cracks, darkened areas, or other
retreats that they construct of silk.
Exterior treatment may be necessary to control spiders migrating inside or
to eliminate spiders on or under porches, in crawl spaces, under eaves, and
in other areas on the outside of the building. For some venomous species
such as the European house spider or the black widow, insecticide
applications may be necessary in landscape areas such as foundation
plantings or rock gardens. Spiders often become particularly numerous on
exterior surfaces of homes and buildings built near lakes. They spin webs to
catch and feed on many flying insects that come out of the lake and adjacent
marshy areas. Chronic spider problems result, for which there are few good
management options except reducing night lights (which attract flying
insects) and applying residual insecticide treatments at necessary
intervals. Spider fecal droppings can disfigure fiberglass boats, vinyl
siding and latex painted surfaces.
Daddy-Long- Legs
Family Phalangiidae
Appearance: From 1/8 to 1/2 inch long; yellowish to greenish-brown
or reddish brown;with four pairs of long,thin legs.
Habits: Found in open areas on foliage and tree trunks,or on shady
walls outside buildings.
Diet: Small insects and decaying organic matter,plant juices.
Biology: Females deposit eggs into soil individually; eggs
overwinter and hatch in the spring; one generation a year.
Other Information: Legs break off easily and cannot be replaced
and if disturbed they furiously wave second pair of legs in the air.
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Spiders
Many species of spiders are common household pests in the United States.
Certain common household spiders spin webs over lamps in corners, and in
basements. This is unsightly but causes no real harm. Remember that every
cobweb (lamps, corners, etc.) was not made by a spider. Although all spiders
use venom when they bite and kill their prey, the black widow, European
house, and brown recluse spiders (non of which create cobwebs indoors) are
the only North American species consistently dangerous to humans.
Many spiders are associated with moisture and, therefore, are found in
basements, crawl spaces, and other damp parts of buildings. Others live in
warm, dry places so are found in subfloor air vents, in upper corners of
rooms, or in attics. Most species hide in cracks, darkened areas, or other
retreats that they construct of silk.
Exterior treatment may be necessary to control spiders migrating inside or
to eliminate spiders on or under porches, in crawl spaces, under eaves, and
in other areas on the outside of the building. For some venomous species
such as the European house spider or the black widow, insecticide
applications may be necessary in landscape areas such as foundation
plantings or rock gardens. Spiders often become particularly numerous on
exterior surfaces of homes and buildings built near lakes. They spin webs to
catch and feed on many flying insects that come out of the lake and adjacent
marshy areas. Chronic spider problems result, for which there are few good
management options except reducing night lights (which attract flying
insects) and applying residual insecticide treatments at necessary
intervals. Spider fecal droppings can disfigure fiberglass boats, vinyl
siding and latex painted surfaces.
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If you are experiencing problems with Spiders
contact us for treatment or more information.
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