Interaction of Campoletis sonorensis and a Nuclear Polyhedrosis Virus in Larvae of Heliothis virescens123

Irabagon, Teodora A.; Brooks, Wayne M.

doi:10.1093/jee/67.2.229

Cited by 59 publications

(39 citation statements)

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“…However, parasitoids had more time to complete development in hosts inoculated with SpltNPV at the fourth instar (5 dpp). The premature death of parasitoids in virus-infected hosts for various combinations of larval parasitoids and viruses has been reported by several authors (Laigo and Tamashiro, 1966;Laigo and Paschke, 1968;Irabagon and Brooks, 1974;Beegle and Oatman, 1975;Levin et al, 1981;Eller et al, 1988;Easwaramoorthy and Jayaraj, 1989;Hochberg, 1991;Kyei-Poku et al, 1999). As reviewed by Brooks (1993), premature host death is the most common consequence of a host-parasitoid-virus interaction.…”

Section: Discussionmentioning

confidence: 85%

“…The transmission of viruses by parasitoids can be categorized into two means: mechanical vectors in the translocation of viruses as a result of contaminated body parts contacting host food sources (Irabagon and Brooks, 1974;Beegle and Oatman, 1975;Raimo et al, 1977;Young and Yearian, 1990;Sait et al, 1996), and biological vectors in the translocation of viruses as a result of the direct inoculation of the host via a virus-contaminated ovipositor (Beegle and Oatman, 1975;Levin et al, 1983;Hamm et al, 1985;Caballero et al, 1991). In this study, we examined the possibility of M. pulchricornis wasps as mechanical and biological vectors of SpltNPV, but no parasitoid females transmitted an effective dose of SpltNPV to other hosts.…”

Section: Discussionmentioning

confidence: 99%

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Interaction between a nucleopolyhedrovirus and the braconid parasitoid Meteorus pulchricornis (Hymenoptera: Braconidae) in the larvae of Spodoptera litura (Lepidoptera: Noctuidae)

Nguyen

Nakai

Takatsuka

et al. 2005

Appl. Entomol. Zool.

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We investigated the survival and development of the braconid parasitoid Meteorus pulchricornis in nucleopolyhedrovirus (NPV)-infected Spodoptera litura larvae. The first and second molting stages of the larvae were parasitized by M. pulchricornis and were exposed to a 95% lethal concentration (LC 95 ) and 10ϫ the LC 95 of S. litura NPV (Splt-NPV) on the first, third, and fifth day post-parasitization (dpp). Infection of the larvae with SpltNPV was deleterious to the survival and development of M. pulchricornis. The survival of M. pulchricornis in SpltNPV-infected S. litura larvae was dependent on the interval between parasitization and viral infection, as well as on the inoculation dose of SpltNPV; few parasitoid larvae emerged from infected hosts when host larvae were exposed to 10ϫ the LC 95 of Splt-NPV on 1 and 3 dpp. The fecundity of M. pulchricornis that emerged from SpltNPV-infected hosts was not affected, and these parasitoids did not transmit the virus to other hosts. The number of eggs laid by M. pulchricornis females was not significantly different between the SpltNPV-infected and non-infected larvae during the first 4 d post-infection (dpi). On the other hand, at 5 dpi, M. pulchricornis females laid significantly more eggs in non-infected larvae than in SpltNPV-infected larvae.

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Section: Discussionmentioning

confidence: 85%

Section: Discussionmentioning

confidence: 99%

Interaction between a nucleopolyhedrovirus and the braconid parasitoid Meteorus pulchricornis (Hymenoptera: Braconidae) in the larvae of Spodoptera litura (Lepidoptera: Noctuidae)

Nguyen

Nakai

Takatsuka

et al. 2005

Appl. Entomol. Zool.

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“…Lopes et al (2002) reported that one female E. viticolee was able to transmist an iridescence virus in 3.7% of S. frugiperda larvae. Irabagon and Brooks (1974) found that the C. sonorensis adults could transmist a NPV in 40% of H. virescens larvae.…”

Section: Discussionmentioning

confidence: 99%

“…Raimo et al (1977) demonstrated intrahaemocoelic inoculation of Lymantria dispar Linnaeus NPV by Apanteles melanoscelus Ratzeburg when the parasitoid oviposited in noninfected larvae after oviposition in NPV-infected larvae. Adults of Campoletis sonorensis Cameron transmitted heliothis NPV to as many as 40% of larvae of H. virescens in which they oviposited after ovipositoin in NPV-infected larvae (Irabagon and Brooks, 1974). Levin et al (1979) reported a higher frequency (81% to 95%) of transmission of the GV of Pieris rapae Linnaeus by the parasitoid Apanteles glomeratus Linnaeus.…”

Section: Introductionmentioning

confidence: 99%

Transmission of different nucleopolyhedroviruses by two ectoparasitoids: Bracon hebetor say (Hymenoptera: Braconidae) and Euplectrus plathypenae (Howard) (Hymenoptera: eulophidae)

Stoianova

Balevski

2010

PESTIC PHYTOMED

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SUMMARYThe transmission of nucleopolyhedroviruses (NPVs) of Autographa gamma (AgNPV), Mamestra brassicae (MbNPV), Lacanobia oleraceae (LoNPV), Helicoverpa armigera (HaNPV) and Xantia c-nigrum (XnNPV) to their relevant larvae by the ectoparasitoid Bracon hebetor and the transmission of the multiple-enveloped NPVs of Spodoptera exigua (SeMNPV) and Spodoptera frugiperda (SfMNPV) by the ectoparasitoid Euplectrus plathypenae was examined. Two methods of contamination of the both parasitoids (exposure to infected hosts and total body surface) and two subsequent transmissions of the viruses by Bracon hebetor to healthy hosts were tested. The results showed that both parasitoids were capable to be mechanical vectors of the tested NPVs. Every Bracon hebetor female was able to transmit subsequently twice the virus in 27% to 52.2% of the five Noctuidae species by preliminary exposing to infected larvae. The second method of contamination (applying virus suspension to the total body surface of the parasitoid) was also efficient causing virus infection in between 29.4% and 54.15% of the larvae.The parasitoid E. plathypenae transmited the virus from infected to noninfected larvae in 20% and 25.57% of the S. frugiperda and S. exigua larvae, and 6.43% and 11.10%, respectively of them died from the virus infection. The same observation was established by the second method of contamination -respectively 33.33% and 40% infection and between 13.23% and 16.67% mortality.

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“…In addition, parasitoids could represent another potential avenue for recombinant virus movement. Parasitoid adult females that either developed successfully in virus-infected hosts or oviposited in infected hosts have been shown to disseminate wild-type virus particles and generate infection in other susceptible larvae via oviposition or environment contamination (Iragabon and Brooks 1974, Levin et al 1983, Brown et al 1989, Cabellero et al 1991, Sait et al 1996. Using PCR analysis, McCutchen et al (1996) found that Ϸ40% of M. croceipes emerging from recombinant virus-infected hosts in the laboratory tested positive for recombinant viral DNA.…”

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confidence: 99%

Impact of Recombinant Baculovirus Field Applications on a Nontarget Heliothine Parasitoid, <I>Microplitis croceipes</I> (Hymenoptera: Braconidae)

Smith

Heinz

Sansone

et al. 2000

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The kill times of two viruses infectious to the heliothine pest complex indigenous to Texas cotton have been significantly reduced by expressing a scorpion toxin gene. Autographa californica nucleopolyhedrovirus (NPV) and Helicoverpa zea NPV express the toxin only in permissive lepidopteran hosts. The toxin, however, could indirectly harm members of upper trophic levels that feed upon and parasitize infected larvae producing the toxin. In this study, the effects of recombinant and wild-type viruses on Microplitis croceipes (Cresson) were studied in cotton using Heliothis virescens (F.) (Lepidoptera: Noctuidae) as hosts. Two recombinant viruses, their two wild-type progenitor viruses, and untreated cotton served as the five treatments of study. Larvae were previously parasitized 2 and 4 d before being confined for 72 h to cotton terminals treated with field rates of virus or left untreated. The sexes of adult M. croceipes that emerged from the recovered H. virescens larvae were determined and their head capsule widths were measured. Polymerase chain reaction (PCR) searched their extracts for virus DNA. There were no differences in percentage emergence and sex ratios of parasitoids among recombinant, wild-type, and control treatments. Significantly more wasps emerged from the 4-d cohort, but these wasps were significantly smaller than wasps from the 2-d cohort regardless of treatment. Finally, PCR found only 15-25% of the recovered H. virescens larvae and none of the emergent M. croceipes had detectable levels of viral DNA. Recombinant and wild-type viruses had a similar, minimal impact on emergent wasps, and the probability of virus dispersal via parasitoids is low in the system tested.

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Interaction of Campoletis sonorensis and a Nuclear Polyhedrosis Virus in Larvae of Heliothis virescens123

Cited by 59 publications

References 0 publications

Interaction between a nucleopolyhedrovirus and the braconid parasitoid Meteorus pulchricornis (Hymenoptera: Braconidae) in the larvae of Spodoptera litura (Lepidoptera: Noctuidae)

Interaction between a nucleopolyhedrovirus and the braconid parasitoid Meteorus pulchricornis (Hymenoptera: Braconidae) in the larvae of Spodoptera litura (Lepidoptera: Noctuidae)

Transmission of different nucleopolyhedroviruses by two ectoparasitoids: Bracon hebetor say (Hymenoptera: Braconidae) and Euplectrus plathypenae (Howard) (Hymenoptera: eulophidae)

Impact of Recombinant Baculovirus Field Applications on a Nontarget Heliothine Parasitoid, <I>Microplitis croceipes</I> (Hymenoptera: Braconidae)

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