Host selection behavior of Bagrada hilaris (Hemiptera: Pentatomidae) on commercial cruciferous host plants

Ta I. Huang, Darcy A. Reed, Thomas M. Perring, John C Palumbo

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

A series of host-choice tests were conducted under greenhouse conditions to evaluate the host selection behavior of the Bagrada bug, Bagrada hilaris on commercial cruciferous seedlings. In addition, a separate choice test was conducted to investigate the selection behavior of B. hilaris adults for broccoli plants of various growth stages: cotyledon, 1-leaf, 2-leaf, and 4-leaf plant stages. In comparing host selection among the commercial seedlings, observations on host attractiveness, host acceptance and host susceptibility of the cruciferous cultivars to B.hilaris adults were measured by recording numbers of adults per plant, the time at which feeding damage was first observed, and the time plant mortality occurred for each cultivar, respectively. Results showed that significantly more adult B.hilaris were attracted to a commercial radish cultivar than all other hosts, followed by red and green cabbage. Measurements of host acceptance varied among the cruciferous cultivars, however in terms of feeding damage, alyssum, arugula and broccoli appeared to be relatively less acceptable hosts for B.hilaris. Similarly, all host plants were susceptible to B.hilaris feeding damage and plant mortality varied among cultivars. In the broccoli growth-stage trials, experiments were designed in a similar fashion except that the experiment was conducted in plastic cages. A greater number of B.hilaris adults were attracted to 4-leaf-stage broccoli than other growth stages, but feeding damage was observed more quickly on cotyledon-stage plants. The implications of these findings for developing alternative pest management approaches for B.hilaris in commercial cruciferous crops are discussed.

Original languageEnglish (US)
Pages (from-to)7-13
Number of pages7
JournalCrop Protection
Volume59
DOIs
StatePublished - May 2014

Fingerprint

Bagrada
Pentatomidae
Hemiptera
host plants
broccoli
cultivars
developmental stages
cotyledons
leaves
arugula
seedlings
radishes
pest management
cabbage

Keywords

  • Bagrada hilaris
  • Cruciferous
  • Host preference
  • Pest management
  • Stink bug

ASJC Scopus subject areas

  • Agronomy and Crop Science

Cite this

Host selection behavior of Bagrada hilaris (Hemiptera : Pentatomidae) on commercial cruciferous host plants. / Huang, Ta I.; Reed, Darcy A.; Perring, Thomas M.; Palumbo, John C.

In: Crop Protection, Vol. 59, 05.2014, p. 7-13.

Research output: Contribution to journalArticle

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