The role of plant odours in the leafminer Liriomyza sativae (Diptera: Agromyzidae) and its parasitoid Diglyphus isaea (Hymenoptera: Eulophidae): Orientation towards the host habitat

Zhao, Yun; Kang, Le

doi:10.14411/eje.2002.056

Cited by 19 publications

(12 citation statements)

References 31 publications

(31 reference statements)

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“…In addition, using the same host plant species and cultivars as in the current study, V. faba seemed a more suitable host plant for L. trifolii than P. vulgaris or S. lycopersicum based on adult size as a measure of performance (Musundire et al 2012), whereas parasitism was highest on S. lycopersicum. The disparity between host plant-related size variation in adult Liriomyza species (Musundire et al 2012) and the current results for leafminer-plant-related variation in parasitism and host feeding levels could be attributed to several factors, including volatile cues released by leafminer-damaged host plants (FinidoriLogli et al 1996, Zhao and Kang 2002, Wei et al 2006) and visual cues, such as the shape of a leaf mine (Sugimoto et al 1988). …”

Section: Sex Ratio Of D Isaeamentioning

confidence: 55%

Host Plant-Related Parasitism and Host Feeding Activities of Diglyphus isaea (Hymenoptera: Eulophidae) on Liriomyza huidobrensis, Liriomyza sativae, and Liriomyza trifolii (Diptera: Agromyzidae)

et al. 2012

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Host plant species can affect the behavior and attributes of parasitoids, such as host searching, oviposition, and offspring fitness. In this study, parasitism, host feeding, and sex ratios of Diglyphus isaea (Walker) (Hymenoptera: Eulophidae) on Liriomyza huidobrensis (Blanchard), Liriomyza sativae Blanchard, and Liriomyza trifolii (Burgess) (Diptera: Agromyzidae) larvae reared on Phaseolus vulgaris L., Pisum sativum L., Solanum lycopersicum L., and Vicia faba L. were determined. In no-choice tests, L. huidobrensis had the highest rate of parasitism when reared on P. vulgaris (46%), L. sativae when reared on V. faba (59%) and P. vulgaris (59%), and L. trifolii when reared on S. lycopersicum (68%). Host feeding in no-choice tests ranged between 2% and 36% and was highest on L. trifolii reared on V. faba. Results of choice tests showed a significant interaction effect for host plant and Liriomyza species on parasitism and host feeding. Within plant mixtures, L. sativae reared on P. vulgaris had the highest rate of parasitism (31%), followed by L. trifolii on S. lycopersicum (29%) and L. huidobrensis on V. faba (28%). Host feeding was highest on L. trifolii reared on S. lycopersicum (14%) and lowest on L. huidobrensis reared on P. sativum and S. lycopersicum (1%). In some instances, plant mixtures resulted in a higher proportion of females of D. isaea than single plant species. The highest proportion of females was obtained in plant mixtures on L. huidobrensis and L. trifolii on V. faba (71 and 72%, respectively). This study suggests that planting crop mixtures can potentially lead to higher proportions of females, thus improving parasitism and host feeding, depending on Liriomyza and host plant species. Keywords: biological control, leafminer, ectoparasitoid, sex ratio, tritrophic interactionsThe leafmining flies Liriomyza huidobrensis (Blanchard), Liriomyza sativae Blanchard, and Liriomyza trifolii (Burgess) (Diptera: Agromyzidae) are economically important pests of a wide range of greenhouse and field-grown plants (Murphy and LaSalle 1999, Liu et al. 2009). These three pests are considered alien invasive species in the Afrotropical region, and L. trifolii was first reported in Kenya in 1976, where 10 yr after its accidental introduction the pest was found to be widespread from the coastal regions to the highlands (Spencer 1985). The three Liriomyza species are highly polyphagous, attacking plants in several families 1 (Murphy and LaSalle 1999). Globally, they are important pests of high value horticultural crops such as snow pea (Pisum sativum L.; Fabaceae), French bean (Phaseolus vulgaris L.; Fabaceae), runner bean (Phaseolus coccineus L.; Fabaceae), okra [Abelmoschus esculentus (L.) Moench; Malvaceae], aubergine (Solanum melongena L.; Solanaceae), tomato (Solanum lycopersicum L.; Solanaceae), and passion fruit (Passiflora edulis Sims; Passifloraceae), and they can cause yield losses of up to 100% (Spencer 1973(Spencer , 1990Kotze and Dennill 1996;Chabi-Olaye et al. 2008;Gitonga et al. 2010).Previous ...

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Section: Sex Ratio Of D Isaeamentioning

confidence: 55%

Host Plant-Related Parasitism and Host Feeding Activities of Diglyphus isaea (Hymenoptera: Eulophidae) on Liriomyza huidobrensis, Liriomyza sativae, and Liriomyza trifolii (Diptera: Agromyzidae)

et al. 2012

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“…Some previous studies show that female D. isaea are strongly attracted to the volatile signals released by the plant-host complex (Finidori-Logli et al, 1996;Valérie et al, 1996) and the odours from physically damaged nonhost plant leaves strongly increase the EAG (electroantennogram) responses of D. isaea (Zhao & Kang, 2002). Neither naive nor experienced females show any response to the frass of third-instar host larvae.…”

Section: Discussionmentioning

confidence: 96%

Role of leaf mines in host location and pupation in Diglyphus isaea (Hymenoptera: Eulophidae)

Yu¹,

Chen²,

Zhang³

2012

Eur. J. Entomol.

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Abstract. Diglyphus isaea Walker (Hymenoptera: Eulophidae) is an important ectoparasitic wasp of many leaf miners. Ability of D. isaea to find hosts placed in artificial mines and for its larvae to pupate when the larva is not in a mine was studied. Artificial mines consisted of slits cut in index card sandwiched between two cover slips. Almost 80% of the neonate larvae of D. isaea located host larvae in artificial mines compared to only 50% of those not in a mine. Mature larvae removed from mines did not construct normal pupal chambers. Nonetheless, they pupated and emerged successfully. Larvae of Liriomyza sativae Blanchard (Diptera: Agromyzidae) in mines are more likely to be attacked than those not in mines. Moreover, when close to a host larva this parasitoid can use vibrational cues to locate the larva in a mine. In addition, this parasitoid also did not always use volatile and gustatory cues for short range location of hosts. However, adult females of D. isaea more quickly located L. sativae larvae in the presence of the odour of juice extracted from an uninfested host plant. We conclude by proposing that the host mine is the medium by which the vibrations generated by the host larva are transmitted, which are probably the most important cue used by female D. isaea searching for hosts. That is this parasitoid first perceives mines not host larvae. These results will be helpful for developing techniques for the mass rearing of D. isaea in the future.

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“…Furthermore, L. huidobrensis-infested plants release significantly higher amounts of major terpenoids and oximes than L. sativae-infested plants. Two species of parasitic wasp, Opius dissitus and Diglyphus isaea, parasitize larvae of Liriomyza leafminers (Kang 1996;Zhao and Kang 2002a). Zhao and Kang (2002a) have observed that adults of D. isaea orient toward plant odors associated with L. sativae-infested plants.…”

Section: Discussionmentioning

confidence: 99%

“…Two species of parasitic wasp, Opius dissitus and Diglyphus isaea, parasitize larvae of Liriomyza leafminers (Kang 1996;Zhao and Kang 2002a). Zhao and Kang (2002a) have observed that adults of D. isaea orient toward plant odors associated with L. sativae-infested plants. Specific compounds from complex herbivore-induced volatile blends are known to play an important role in the selective foraging behavior of their natural enemies (De Boer et al 2004).…”

Section: Discussionmentioning

confidence: 99%

Volatiles released from bean plants in response to agromyzid flies

Wei

Zhu

Kang

2006

Planta

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Liriomyza sativae Blanchard and Liriomyza huidobrensis (Blanchard) (Diptera: Agromyzidae) are two invasive flies in China that have caused economical damage on vegetables and ornamental plants. In this article, we report the profiles of emitted volatiles from healthy, mechanically damaged, and leafminer-damaged bean, Phaseolus vulgaris L., plants. Among 25 emitted volatiles identified, (E)-2-hexen-1-al, (3E)-4,8-dimethyl-1,3,7-nonatriene (DMNT), (Z)-3-hexenyl acetate, (Z)-3-hexen-1-ol, (syn)- and (anti)-2-methylpropanal oxime, (syn)-2-methylbutanal oxime, linalool, and (E,E)-alpha-farnesene were consistently released from damaged bean plants. Combined amounts of these nine compounds made up more than 70% of the total volatiles emitted from each treatment. No qualitative differences in volatile emission were found between bean plants damaged by the two fly species; however, amounts of several major compounds induced by L. huidobrensis damage were significantly higher than those from plants damaged by L. sativae. The mechanically damaged plants released a higher proportion of green leaf volatiles than plants in the other treatments, whereas leafminer-damaged plants produced more terpenoids and oximes. Furthermore, the volatile profiles emitted from plants, damaged by adult leafminers, by second instar larvae, and even the plants with empty mines left by leafminer larvae (the pupal stage) were significantly different. The identification of volatile oximes released from damaged plants was confirmed and is discussed in a behavioral and biological control context.

show abstract

The role of plant odours in the leafminer Liriomyza sativae (Diptera: Agromyzidae) and its parasitoid Diglyphus isaea (Hymenoptera: Eulophidae): Orientation towards the host habitat

Cited by 19 publications

References 31 publications

Host Plant-Related Parasitism and Host Feeding Activities of Diglyphus isaea (Hymenoptera: Eulophidae) on Liriomyza huidobrensis, Liriomyza sativae, and Liriomyza trifolii (Diptera: Agromyzidae)

Host Plant-Related Parasitism and Host Feeding Activities of Diglyphus isaea (Hymenoptera: Eulophidae) on Liriomyza huidobrensis, Liriomyza sativae, and Liriomyza trifolii (Diptera: Agromyzidae)

Role of leaf mines in host location and pupation in Diglyphus isaea (Hymenoptera: Eulophidae)

Volatiles released from bean plants in response to agromyzid flies

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