Effects of host-food plant species on parasitization rates of Mythimna separata (Lepidoptera: Noctuidae) by a parasitoid, Cotesia kariyai (Hymenoptera: Braconidae).

Fujiwara, Chiaki; Takabayashi, Junji; Yano, Shuichi

doi:10.1303/aez.2000.131

Cited by 20 publications

(11 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It was not clear whether the higher attractiveness resulted in the higher incidence of parasitism under field conditions (for laboratory conditions; see Fujiwara et al 2000). In the second experiment (figs 4 and 5), we focussed on the incidence of parasitism in the field and found that the presence of the HIPV bottle increased the incidence of parasitism under the field conditions.…”

Section: Discussionmentioning

confidence: 96%

See 1 more Smart Citation

Application of synthetic herbivore‐induced plant volatiles causes increased parasitism of herbivores in the field

Uefune

Choh

Abe

et al. 2011

J Applied Entomology

View full text Add to dashboard Cite

We previously reported that Cotesia vestalis (Hymenoptera, Braconidae), a parasitoid of diamondback moth (DBM) (Plutella xylostella; Lepidoptera, Plutellidae) larvae, was attracted to volatiles from crucifer plants infested by moth larvae kept in a desktop acrylic box, and that a blend of four DBM‐induced plant volatiles was responsible for this attraction. In this study, using a specially designed dispenser to release the four compounds, we demonstrated that the wasp was attracted to intact komatsuna plants (Brassica rapa var. perviridis). The experiments were performed in a climate‐controlled room, which was approximately 1000 times larger than the acrylic box used previously. Similarly, using the dispenser in the field, C. vestalis females were attracted to intact komatsuna plants with the dispenser from a distance of three metres. We also examined the effect of the volatile blend on the incidence of parasitism of DBM larvae in the field. Three small containers containing DBM‐infested komatsuna plants with dispensers, and three control containers containing only infested plants (control) were arranged in two lines running perpendicular to a komatsuna field in which both DBM larvae and C. vestalis populations were maintained, at distances of 12, 30 and 70 m. The results showed that the incidence of DBM parasitism was significantly higher in containers containing dispensers than in the control containers, suggesting that the blend could potentially be applied to DBM control in agroecosystems.

show abstract

Section: Discussionmentioning

confidence: 96%

“…It was not clear whether the higher attractiveness resulted in the higher incidence of parasitism under field conditions (for laboratory conditions; see Fujiwara et al. 2000).…”

Section: Discussionmentioning

confidence: 99%

Application of synthetic herbivore‐induced plant volatiles causes increased parasitism of herbivores in the field

Uefune

Choh

Abe

et al. 2011

J Applied Entomology

View full text Add to dashboard Cite

show abstract

“…The present study clearly showed that C. kariyai females can learn to associate host feces with volatiles extracted from infested leaves (Figure 2). M. separata is a polyphagous insect which feeds on various gramineous plants (Kanda, 1991), therefore the hostinfested plant volatiles greatly vary according to the host plant species (Fujiwara et al, 2000a). The associative learning of volatiles extracted from infested leaves upon contact with host feces by C. kariyai would be adaptive for coping with this variability in plant volatiles available for their host-finding process.…”

Section: Discussionmentioning

confidence: 99%

Learning of host‐infested plant volatiles in the larval parasitoid Cotesia kariyai

Fukushima

Kainoh

Honda

et al. 2001

Entomologia Exp Applicata

Self Cite

View full text Add to dashboard Cite

The ability to learn plant volatiles in Cotesia kariyai females was examined by wind tunnel bioassays. Searching experience on a host‐infested corn plant increased subsequent flight responses of females to the infested plant. Females experiencing host by‐products together with the volatiles extracted from infested leaves one time showed an increased response. However, such behavioral changes were not observed in females which experienced only the host by‐products or the volatiles. Thus, the increased response is considered to be preference learning. Multiple experiences of C. kariyai with host by‐products together with the volatiles did not increase their flight response to the volatiles. Furthermore, this learned response gradually decreased within 2 days. These behavioral modifications based on experience would be advantageous for C. kariyai to locate their polyphagous hosts efficiently.

show abstract

“…Takabayashi et al (1995) found that C. kariyai females can discriminate between the induced volatiles from maize [Zea mays L. (Poaceae)] leaves infested with early-instar M. separata and uninfested leaves. In addition, several studies have documented that host plant species (Takabayashi et al, 1991;Fujiwara et al, 2000a), leaf age (Hou et al, 2005), learning experience (Fukushima et al, 2001), time after herbivory (Mandour et al, 2011), and oviposition experience (Fujiwara et al, 2000b) affect the olfactory preference and flight responses of this parasitoid species. However, the impacts of quantitative and qualitative differences in plant volatiles induced by host and non-host damages on the olfactory responses of C. kariyai still remain unclear.…”

Section: Introductionmentioning

confidence: 99%

Effects of quantitative and qualitative differences in volatiles from host‐ and non‐host‐infested maize on the attraction of the larval parasitoid Cotesia kariyai

Thanikkul

Piyasaengthong

Menezes-Netto

et al. 2017

Entomologia Exp Applicata

View full text Add to dashboard Cite

Cotesia kariyai Watanabe (Hymenoptera: Braconidae) is a specialist larval parasitoid of Mythimna separata Walker (Lepidoptera: Noctuidae). Cotesia kariyai wasps use herbivore‐induced plant volatiles (HIPVs) to locate hosts. However, complex natural habitats are full of volatiles released by both herbivorous host‐ and non‐host‐infested plants at various levels of intensity. Therefore, the presence of non‐hosts may affect parasitoid decisions while foraging. Here, the host‐finding efficiency of naive C. kariyai from HIPVs influenced by host‐ and non‐host‐infested maize [Zea mays L. (Poaceae)] plants was investigated with a four‐arm olfactometer. Ostrinia furnacalis Guenée (Lepidoptera: Crambidae) was selected as a non‐host species. One unit (1 U) of host‐ or non‐host‐infested plant was prepared by infesting a potted plant with five host or seven non‐host larvae. In two‐choice bioassays, host‐infested plants fed upon by different numbers of larvae, and various units of host‐ and non‐host‐infested plants (infestation units; 1 U, 2 U, and 3 U) were arranged to examine the effects of differences in volatile quantity and quality on the olfactory responses of C. kariyai with the assumption that volatile quantity and quality changes with differences in numbers of insects and plants. Cotesia kariyai was found to perceive quantitative differences in volatiles from host‐infested plants, preferring larger quantities of volatiles from larger numbers of larvae or plants. Also, the parasitoids discriminated between healthy plants, host‐infested plants, and non‐host‐infested plants by recognising volatiles released from those plants. Cotesia kariyai showed a reduced preference for host‐induced volatiles, when larger numbers of non‐host‐infested plants were present. Therefore, quantitative and qualitative differences in volatiles from host‐ and non‐host‐infested plants appear to affect the decision of C. kariyai during host‐habitat searching in multiple tritrophic systems.

show abstract

Effects of host-food plant species on parasitization rates of Mythimna separata (Lepidoptera: Noctuidae) by a parasitoid, Cotesia kariyai (Hymenoptera: Braconidae).

Cited by 20 publications

References 7 publications

Application of synthetic herbivore‐induced plant volatiles causes increased parasitism of herbivores in the field

Application of synthetic herbivore‐induced plant volatiles causes increased parasitism of herbivores in the field

Learning of host‐infested plant volatiles in the larval parasitoid Cotesia kariyai

Effects of quantitative and qualitative differences in volatiles from host‐ and non‐host‐infested maize on the attraction of the larval parasitoid Cotesia kariyai

Contact Info

Product

Resources

About