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Common Name: Two-lined spittlebug; Scientific Name: Prosapia bicincta (Say); ... Life Cycle: Winter is spent in the egg stage that hatches in the spring. Nymphs produce the spittle mass to prevent them from drying out, and develop through four stages (instars) within about one month. Eggs hatch in about 2 weeks.
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insects.tamu.edu/fieldguide/aimg86.html
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Seasonal development and life cycle—Spittlebugs ... Adult spittlebugs are inconspicuous. Females lay small eggs in rows in hidden parts of the plant, such as the sheath between leaves and stems. Nymphs undergo about five molts, and may be orange, yellow, or green. ... ; Spittlebug eggs on rosemary...
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www.ipm.ucdavis.edu/PMG/GARDEN/VEGES/PESTS/LIFECYCLE/lc...
www.ipm.ucdavis.edu/PMG/GARDEN/VEGES/PESTS/LIFECYCLE/lcspittlebug.html
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Managing the Twolined Spittlebug in the Home Landscape ... Approximately two months are required to complete the life cycle. Eggs require two weeks to hatch during the summer. Adults are one to two weeks old before they begin laying eggs. There are at least two generations per year.
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www.ces.ncsu.edu/depts/ent/notes/O&T/lawn/note97/note97...
www.ces.ncsu.edu/depts/ent/notes/O&T/lawn/note97/note97.html
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Life Cycle; There is one generation each year. The insect overwinters in the egg stage. The eggs hatch in early to mid-April in central Illinois, and the last two weeks in April in northern Illinois. ... Control; Chemical control is usually not profitable if the number of spittlebug nymphs averages fewer than I per stem.
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ipm.illinois.edu/fieldcrops/insects/meadow_spittlebug/
ipm.illinois.edu/fieldcrops/insects/meadow_spittlebug/
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The Saratoga spittlebug seems to prefer pines for food but will also attack balsam fir. Damage may be so light as to be unnoticed, but ocassionally, ... This will help to prevent the Saratoga spittlebug from completing its life cycle. Where needed, a registered insecticide may be used to treat these pests.
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www.plantpath.cornell.edu/trees/Spittlebug.html
www.plantpath.cornell.edu/trees/Spittlebug.html
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In 1984-1986 we studied the effect of climate on the life cycle of this insect in Sonora, Mexico, by monitoring spittlebug nymph and adult densities in relation to summer precipitation and maximum and minimum temperatures.
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cat.inist.fr/?aModele=afficheN&cpsidt=3632141
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We propose a life cycle for a microtubule which consists of rapid growth from the centrosome to the cell margin followed by an indefinite period of fluctuations of phases of shortening and growth.
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jcs.biologists.org/cgi/content/full/115/17/3527
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When two generations are produced within a life cycle each producing individuals of only one sex, either male first and then female or visa-versa. Alula. In insects (not birds) the outermost of the three flap-like outgrowths at the base of the wing in various flies: really a part of the wing membrane.
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www.earthlife.net/insects/glossary.html
www.earthlife.net/insects/glossary.html
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Description And Life Cycle ... Spittlebug Damage And Humidity ... Spittlebugs damage grass by piercing the plant tissue with their needle-like mouthparts and sucking out sap. Spittlebug nymphs surround themselves with a mass of froth (spittle) close to the soil (Figure 2).
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www.aces.edu/pubs/docs/A/ANR-0170/
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