Response of False Wireworm Eleodes suturalis Larvae to Wheat in Olfactometer Tests123

Calkins, C. O.; Matteson, J. W.; Randall, D. D.

doi:10.1093/jee/60.3.665

Cited by 7 publications

(6 citation statements)

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“…Visser (1988) also pointed out that host plant Þnding is affected by both distribution of the host and the insect orientation. Many subterranean phytophagous insects locate hosts by host-oriented responses rather than by random movements (Calkins et al 1967). In a larval host search behavior study with western corn rootworms, Strnad and Dunn (1990) demonstrated that search area and locomotor rate decreased and turning rate and path crossings increased after the larvae contacted host roots compared with contact with nonhost roots.…”

Section: The Northern Corn Rootworm Diabrotica Barberimentioning

confidence: 99%

Selected Grassy Weeds as Alternate Hosts of Northern Corn Rootworm (Coleoptera: Chrysomelidae)

et al. 2004

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Section: The Northern Corn Rootworm Diabrotica Barberimentioning

confidence: 99%

Selected Grassy Weeds as Alternate Hosts of Northern Corn Rootworm (Coleoptera: Chrysomelidae)

et al. 2004

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“…It is known, however, that subterranean phytophagous insects locate hosts by host-oriented responses rather than by random movements (Calkins et al, 1967, Sutherland, 1972, Doane et al, 1975, Jones & Coaker, 1977. As a consequence, the literature on this subject is not replete with examples.…”

mentioning

confidence: 99%

“…As a consequence, the literature on this subject is not replete with examples. It is known, however, that subterranean phytophagous insects locate hosts by host-oriented responses rather than by random movements (Calkins et al, 1967, Sutherland, 1972, Doane et al, 1975, Jones & Coaker, 1977. Jones & Coaker (1978) have emphasized the importance of studying the feeding behavior of more insect species, especially subterranean ones, so that current theories of the evolution of host orientation can be tested.…”

mentioning

confidence: 99%

OLFACTORY RESPONSE OF LARVAE OF DIABROTICA VIRGIFERA VIRGIFERA TO PLANT ROOTS

Branson

1982

Entomologia Exp Applicata

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In laboratory tests, the oligophagous larvae of the western corn rootworm, Diabrotica virgifera virgifera LeConte (Coleoptera, Chrysomelidae), could not, by olfaction, distinguish the difference between the roots of host and nonhost pants. Tests in a soil olfactometer indicated that the larvae aggregated around an odor source (plant roots) probably by being attracted toward the source rather than by moving randomly, finding the odor source by chance, and then being stopped at the source by an arrestant.The larva of D. v. virgifera, unlike other reported subterranean insects with restricted host ranges, appears not to respond to host-specific ailelochemics but only to nonspecific primary metabolites. Thus the larva of D. v. virgifera possibly acquired its restricted host range relatively recently since it behaves similar to a polyphagous species in its host-finding ability.

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“…In some cases, it has been established that volatile cues mediate 'attraction' to roots without necessarily identifying the chemical compounds involved. These include location by wireworms (Calkins et al, 1967;Horton and Landolt, 2002), the clover root weevil Sitona hispidulus (Wolfson, 1987), the wheat bulb fly (Delia coarctata) (Stokes, 1956;Long, 1958;Scott, 1974), and the grass grub (Costelytra zealandica) (Sutherland, 1972;Sutherland and Hillier, 1974b).…”

Section: Mechanisms Of Root Locationmentioning

confidence: 99%

Foraging in the Dark – Chemically Mediated Host Plant Location by Belowground Insect Herbivores

2012

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Root-feeding insects are key components in many terrestrial ecosystems. Like shoot-feeding insect herbivores, they exploit a range of chemical cues to locate host plants. Respiratory emissions of carbon dioxide (CO(2)) from the roots is widely reported as the main attractant, however, there is conflicting evidence about its exact role. CO(2) may act as a 'search trigger' causing insects to search more intensively for more host specific signals, or the plant may 'mask' CO(2) emissions with other root volatiles thus avoiding detection. At least 74 other compounds elicit behavioral responses in root-feeding insects, with the majority (>80 %) causing attraction. Low molecular weight compounds (e.g., alcohols, esters, and aldehydes) underpin attraction, whereas hydrocarbons tend to have repellent properties. A range of compounds act as phagostimulants (e.g., sugars) once insects feed on roots, whereas secondary metabolites often deter feeding. In contrast, some secondary metabolites usually regarded as plant defenses (e.g., dihydroxy-7-methoxy-1,4-benzoxazin-3-one (DIMBOA)), can be exploited by some root-feeding insects for host location. Insects share several host location cues with plant parasitic nematodes (CO(2), DIMBOA, glutamic acid), but some compounds (e.g., cucurbitacin A) repel nematodes while acting as phagostimulants to insects. Moreover, insect and nematode herbivory can induce exudation of compounds that may be mutually beneficial, suggesting potentially significant interactions between the two groups of herbivores. While a range of plant-derived chemicals can affect the behavior of root-feeding insects, little attempt has been made to exploit these in pest management, though this may become a more viable option with diminishing control options.

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Response of False Wireworm Eleodes suturalis Larvae to Wheat in Olfactometer Tests123

Cited by 7 publications

References 0 publications

Selected Grassy Weeds as Alternate Hosts of Northern Corn Rootworm (Coleoptera: Chrysomelidae)

Selected Grassy Weeds as Alternate Hosts of Northern Corn Rootworm (Coleoptera: Chrysomelidae)

OLFACTORY RESPONSE OF LARVAE OF DIABROTICA VIRGIFERA VIRGIFERA TO PLANT ROOTS

Foraging in the Dark – Chemically Mediated Host Plant Location by Belowground Insect Herbivores

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