polyphagy


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Related to polyphagy: oligophagous, polyphagous, monophagous

polyphagy

Pathologic overeating. See Bulimia.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
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They are capable of limiting and equilibrating pest populations (NYFFELER, 1982; SUNDERLAND AND SAMU, 2000), because of their abundance and high predatory potential (Tahir and Butt, 2009), prey specialization, polyphagy, top-down effect, numerical and functional responses, and wasteful killing (MALONEY et al., 2003).
Theory predicts that polyphagy in herbivorous arthropods is restricted by trade-offs in performance on different host plants (Futuyma and Moreno 1988, Jaenike 1990, Thompson 1994).
Very few hosts from Florida have been recorded, despite the growing populations and potential for extreme polyphagy. Previous host records include mango (Mangifera indica L., Anacardiaceae), swamp bay (Persea palustris [Raf.] Sarg.
Resistance evolution is a serious threat for the chemical control sustainability of the oriental fruit moth when we consider the high insecticide selection pressure in Brazil (6-8 treatments per season) (BOTTON et al., 2011), its polyphagy (preference for apple and peach) and its high reproductive ability (6 generations per year) (ARIOLI et al., 2010).
They are capable of limiting and equilibrating pest populations (Nyffeler, 1999; Sunderland and Samu, 2000), because of their abundance and high predatory potential (Tahir and Butt, 2009), prey specialization, polyphagy, top-down effect, numerical and functional responses, and wasteful killing (Maloney et al., 2003).
Measures to reduce BGP damage are difficult to implement because of scale polyphagy, subterranean development, ah apodous feeding nymphal instar called a cyst and the defensive strategy of constructing a separate protective layer around their body from their own liquid excreta (Foldi 2005).
ABSTRACT.--We gathered dietary data for several harvestman species in a soybean field and adjacent hedgerow habitats to assess the extent of their polyphagy. A total of 1032 harvestmen, predominantly Leiobunum spp., were observed during almost 50 search hours over two seasons.
The polyphagy of these pest species may contribute to their rapid adaptation to different agroecosystems and landscape modifications.
They significantly reduce prey densities in agricultural fields due to their top-down effects microhabitat use prey selection polyphagy wasteful killing functional response numerical response and obligatory feeding strategies (Greenstone and Sunderland 1999; Riechert 1999; Symondson et al.