Full TGIF Record # 266558
Item 1 of 1
DOI:10.1603/EN13275
Web URL(s):https://academic.oup.com/ee/article/43/6/1594/464463
    Last checked: 07/13/2018
    Access conditions: Item is within a limited-access website
Publication Type:
i
Refereed
Author(s):Obeysekara, Piyumi T.; Legrand, Ana
Author Affiliation:Department of Plant Science and Landscape Architecture, University of Connecticut, Storrs, CT
Title:The influence of host species and location in the host detection ability of Tiphiid (Hymenoptera: Tiphiidae) parasitoids
Source:Environmental Entomology. Vol. 43, No. 6, December 1 2014, p. 1594-1602.
# of Pages:9
Publishing Information:College Park, Maryland: Entomological Society of America
Related Web URL:https://academic.oup.com/ee/article/43/6/1594/464463#91439791
    Last checked: 07/13/2018
    Notes: Abstract only
Keywords:TIC Keywords: Exomala orientalis; Hosts of plant pests; Insect behavior; Popillia japonica; Responses; Tiphia popilliavora; Tiphia vernalis
Abstract/Contents:"Tiphia vernalis Rohwer and Tiphia popilliavora Rohwer are ectoparasitoids of root-feeding larvae of the Japanese beetle, Popillia japonica Newman, and oriental beetles, Anomala orientalis Waterhouse (Coleoptera: Scarabaeidae). Little is known about the influence of host species and location in the host detection ability of tiphiid wasps. In this study, we examined the response of female T. popilliavora wasps, an understudied Tiphia species, to potential host stimuli using dual choice tests in an observation chamber filled with soil. T. popilliavora wasps were able to successfully discriminate the trails containing body odor or frass of P. japonica grubs from trails without cues. Frass trails of P. japonica grubs elicited stronger responses than body odor trails. We also examined the preference of host cues by tiphiid wasps using dual choice behavioral assays. Both T. vernalis and T. popilliavora wasps did not show preference toward trails that either contained P. japonica or A. orientalis cues. In addition, we also determined the detection of host cues by tiphiid wasps in a dual-choice test for cues presented at varying soil depths. Wasps were able to successfully discriminate between the Y-tube arms with and without cues when the cues of P. japonica were buried at a depth of 2 cm. In contrast, both Tiphia species were unable to distinguish between the Y-tube arms with and without cues when the cues were buried at a depth of 5 cm. Thus, our findings suggest that once Tiphia wasps land on the ground, they can detect the presence of their specific hosts, just below the soil surface by exploiting the kairomones present in grub body odor trails and frass and once the wasps are in the soil, they use the same cues to direct themselves to the host grubs."
Language:English
References:54
Note:Partial reprint appears in 2014 Annual Turfgrass Research Report [Connecticut], 2015, p. 102
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ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Obeysekara, P. T., and A. Legrand. 2014. The influence of host species and location in the host detection ability of Tiphiid (Hymenoptera: Tiphiidae) parasitoids. Environ. Entomol. 43(6):p. 1594-1602.
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DOI: 10.1603/EN13275
Web URL(s):
https://academic.oup.com/ee/article/43/6/1594/464463
    Last checked: 07/13/2018
    Access conditions: Item is within a limited-access website
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