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In a survey of agricultural studies, Andow (1991) found a marked difference between monophagous and polyphagous herbivores.
A response to selection on the wasp Aphidius ervi could be slowed, because this wasp is polyphagous. Although pea aphids were the only host present in the study fields, selection on the wasp population may be diluted if constant migration from other hosts into alfalfa fields occurred.
Most aphid colonies were medium size (10-50 aphids per colony) of polyphagous aphid species, and a high proportion (more than 40%) of colonies had alate aphid forms (Fig.
It is a generalist feeder (polyphagous), consuming a variety of grass and forb plant species throughout its range.
Euura atra is a polyphagous, univoltine galling sawfly (Benson, 1958).
Among these nematodes, the root knot nematodes (Meloidogyne spp.) are considered to becryptic enemies for crops compared to other plant parasitic nematodes that are polyphagous, endoparasites and sedentary vascular root feeders.
For example, onion thrips, Thrips tabaci Lindemann, is a polyphagous insect and pest of many plants such as cotton, cucurbits, and onions (Lewis, 1997; Ullah et al., 2010; Ullah et al., 2014) and vectors of Tomato spotted wilt virus and Iris yellow spot virus which have a wide host range (Jenser et al., 2003).
Objective: "The spotted wing drosophila, Drosophila suzukii, is an invasive polyphagous pest endemic to South East Asia.
Entomologists led by Richard Stouthamer proposed the name polyphagous shot hole borer (PSHB) for the tiny insect, an ambrosia beetle.
Trichospilus diatraeae Cherian and Margabandhu, 1942 (Hymenoptera: Eulophidae) is a polyphagous endoparasitoid (Paron and Berti Filho 2000) that has received special attention in Brazil as it has been investigated as a potential biological control agent of eucalyptus defoliator pests (Pereira et al.
These ants are polyphagous but express greater preference for some plants (NAGAMOTO et al., 2009).
McNeil and I provided evidence that host-plant quality influences the induction of larval diapause and subsequent voltinism in the polyphagous insect herbivore Choristoneura rosaceana (Lepidoptera: Tortricidae).
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