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- P. opilio is highly susceptible to at least some broad spectrum insecticides, while some more specific products, such as Bts, appear to be less harmful.
biocontrol.entomology.cornell.edu › predators › Phalangium
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Phalangium opilio. (Arachnida: Opiliones, Phalangiidae) Harvestman, Daddy longlegs, Harvest spider. Of the many species of harvestmen known, P. opilio tends to be the most common in relatively disturbed habitats such as most crops in temperate regions. Like the spiders and most adult mites, harvestmen have two major body sections and eight legs ...
P. opilio is highly susceptible to some broad spectrum insecticides, so use of such insecticides is discouraged for conservation of P. opilio populations. Some specific products appear to cause less harm to P. opilio , such as Bts .
- P. opilio
- Phalangium
Life History and Habits: The common daddylonglegs that occur in Colorado are primarily predators of small soft-bodied insects. They will also scavenge dead or dying insects and may even feed on carrion of larger animals. Their chelicerae (“jaws”) help tear apart their food which is mixed with digestive fluids.
Phalangium opilio Linnaeus 1758. Size. Adult body ~3.5–3.9 mm, with males generally smaller than females. Identification. Males have a large spur/horn on the anterior surface of the first cheliceral segment. Males also tend to have long, thin pedipalps relative to those of other harvestmen.
Feb 1, 2005 · Phalangium opilio incurred higher mortality, longer developmental periods, and smaller adult body size when fed a monotypic diet of A. glycines. Fecundity also was compromised when fed A. glycines . A mixed diet containing A. glycines caused some adverse effects on reproduction compared with the standard laboratory diet, which did not contain ...
- Cora M. Allard, Kenneth V. Yeargan
- 2005
Aug 4, 2021 · (a) Phalangium opilio draft genome assembly. The draft assembly of the P. opilio genome comprises 580.4 Mbp (37.5% GC content) in 5137 scaffolds (N50: 211 089) and 8349 contigs (N50: 127 429; electronic supplementary material, figure S1 and table S5). The predicted genome repetitiveness is 54.4% and estimated heterozygosity is 1.24%.
Summary 2. Phalangium opilio is "the most widespread species of harvestman in the world", occurring natively in Europe, and much of Asia, and having been introduced to North America, North Africa and New Zealand. It is found in a wide range of habitats, including meadows, bogs, forests, and various types of anthropogenic habitats, such as ...
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