Efficacy of a Spanish strain of <i>Agrotis segetum</i> granulosis virus (Baculoviridae) against <i>Agrotis segetum</i> Schiff. (Lep., Noctuidae) on corn

Caballero, Primitivo; Osuna, E. Vargas; Santiago‐Álvarez, C.

doi:10.1111/j.1439-0418.1991.tb01029.x

Cited by 28 publications

(27 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…AsNPV was app1ied at arate of 4 x 1012 po1yhedra/ha and AsGV at 4 x 1013 granu1es/ha. The doses were fue same for both spray and bait treatments and were chosen from experience with previous trials (Caballero et al, 1990(Caballero et al, , 1991Bourner, unpub1ished data). The virus treatments were carried out on 27 May 1991.…”

Section: Insectsmentioning

confidence: 99%

“…Several authors have reported fue successful use of A. segetum granulosis virus (AsGV) for the control of A. segetum and the closely related A. ipsilon in Pakistan (Shah et al, 1979), Denmark (Zethner, 1980) and Spain (Caballero et al, 1990(Caballero et al, , 1991 in tobacco, root crops and maize, respectively. AsGV is also registered as 'Virin-OS', a wettable powder, in fue former Soviet Union for use against A. segetum in cotton (Lipa, 1991).…”

Section: Introductionmentioning

confidence: 99%

“…This trial was therefore designed to test AsNPV against a dose of AsGV previously found to give good control of third-instar A. segetum larvae in maize (Caballero et al, 1991) and to compare the effectiveness of each virus using different application methods.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Comparison of the Efficacy of Nuclear Polyhedrosis and Granulosis Viruses in Spray and Bait Formulations for the Control ofAgrotis segetum(Lepidoptera: Noctuidae) in Maize

Bourner¹,

Osuna

Williams³

et al. 1992

Biocontrol Science and Technology

View full text Add to dashboard Cite

Agrotis segetum nuclear polyhedrosis virus (AsNPV) and granulosis virus (AsGV), propagated in laboratory cultures of A. segetum in England and A. ipsilon in Spain, respectively, were applied to plots of maize plants at the one-to four-leaf stage of growth. Plots were arranged in a 6 X 6 Latin square design and infested with second-instar A. segetum larvae (the comnwn cutworm). Each virus was applied in separate treatments by two application methods; as an aqueous spray containing 0.1 % Agral as a wetting agent, and as abran bait. The NPV was applied at arate of 4 X 1012 polyhedra/ha, and the GVat 4 X 1013 granules/ha. Soil and plants were sampled fQr larvae on three occasions following virus treatment: 24 h, 4 days and 11 days. The larvae were reared on diet in the laboratory, until death or pupation, to examine the rafe and level of viral infection. lnfection data showed 87.5% and 91 % NPV infection and 12.5% and 55% GV infection in spray and bait treatments, respectively, in larvae sampled 24 h after treatment. In larvae sampled 4 days after treatment, the results were 78% andl00% NPVinfection, and 13% and 6% GVinfectiqn. A totalofonly six larvae were retrieved on day 11. In both treatments larvae infected wi~ AsNPV died significantly more rapidly and at an earlier instar than those infected with AsGV, indicating that AsNPV appears to have better potential as a control agent for A. segetum.

show abstract

Section: Insectsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Comparison of the Efficacy of Nuclear Polyhedrosis and Granulosis Viruses in Spray and Bait Formulations for the Control ofAgrotis segetum(Lepidoptera: Noctuidae) in Maize

Bourner¹,

Osuna

Williams³

et al. 1992

Biocontrol Science and Technology

View full text Add to dashboard Cite

show abstract

“…They are often detected only when the plants are already severely damaged. Several species of entomopathogenic organisms have been isolated and evaluated as possible biological control agents of cutworm pests (Lipa and Wiland, 1972;Caballero et al, 1991;Steenberg and Ogaard, 2000;Yun et al, 2004;Sevim et al, 2010). However, A. segetum remains a serious threat to agriculture.…”

mentioning

confidence: 99%

A new entomopathogenic nematode species from Turkey, Steinernema websteri (Rhabditida: Steinernematidae), and its virulence

Gökçe¹,

Erbaş²,

Yılmaz³

et al. 2015

Turk J Biol

View full text Add to dashboard Cite

Entomopathogenic nematodes were isolated from a population of larvae of the cutworm Agrotis segetum Denis & Schiffermüller, 1775 (Lepidoptera: Noctuidae) collected from the Black Sea region of Turkey in 2009 using White traps. The isolated nematodes were identified as Steinernema websteri based on morphological and molecular properties. Steinernema websteri was also found for the first time in Turkey and in A. segetum larvae. The efficacy of isolates was tested on A. segetum larvae in plastic boxes. Different concentrations of nematodes (100, 300, and 500 infective juveniles (IJs) g -1 of dry sand) at 23 ± 1 °C were used. The obtained mortality percentages were 100% with the concentration of 500 IJs g -1 of dry sand within 5 days after application under laboratory conditions. Our results indicate that S. websteri is a promising biological control agent against A. segetum, which is one of the most serious subsoil pests plaguing agricultural crops and fruits worldwide.

show abstract

“…Two different alphabaculovirus isolates, Agrotis segetum nucleopolyhedrovirus A (AgseNPV-A; also called the Polish isolate) and A. segetum nucleopolyhedrovirus B (AgseNPV-B; also termed the Oxford isolate) (9)(10)(11), as well as the betabaculovirus Agrotis segetum granulovirus (AgseGV) (12), were isolated and characterized from A. segetum larvae. AgseGV was tested extensively as a biocontrol agent for the control of A. segetum in the field (13)(14)(15)(16), and AgseNPV-B has shown its potential as a biocontrol agent under laboratory conditions (13).…”

mentioning

confidence: 99%

Mortality of Cutworm Larvae Is Not Enhanced by Agrotis segetum Granulovirus and Agrotis segetum Nucleopolyhedrovirus B Coinfection Relative to Single Infection by Either Virus

Wennmann

Köhler

Alletti

et al. 2015

Appl Environ Microbiol

View full text Add to dashboard Cite

Mixed infections of insect larvae with different baculoviruses are occasionally found. They are of interest from an evolutionary as well as from a practical point of view when baculoviruses are applied as biocontrol agents. Here, we report mixed-infection studies of neonate larvae of the common cutworm, Agrotis segetum, with two baculoviruses, Agrotis segetum nucleopolyhedrovirus B (AgseNPV-B) and Agrotis segetum granulovirus (AgseGV). By applying quantitative PCR (qPCR) analysis, coinfections of individual larvae were demonstrated, and occlusion body (OB) production within singly infected and coinfected larvae was determined in individual larvae. Mixtures of viruses did not lead to changes in mortality rates compared with rates of singlevirus treatments, indicating an independent action within host larvae under our experimental conditions. AgseNPV-B-infected larvae showed an increase in OB production during 2 weeks of infection, whereas the number of AgseGV OBs did not change from the first week to the second week. Fewer OBs of both viruses were produced in coinfections than in singly infected larvae, suggesting a competition of the two viruses for larval resources. Hence, no functional or economic advantage could be inferred from larval mortality and OB production from mixed infections of A. segetum larvae with AgseNPV-B and AgseGV.A large number of baculoviruses isolated from the larvae of species of the insect orders Lepidoptera, Diptera, and Hymenoptera have been described (1). According to their occlusion body (OB) morphology, baculoviruses are distinguished into two morphological groups: the granuloviruses (GVs) with a single virion in an ovocylindrical OB (granule) and the nucleopolyhedroviruses (NPVs) with a few to many virions in a polyhedral OB (polyhedron) (2). Taxonomically, the Baculoviridae family is subdivided into four genera, the Alpha-, Beta-, Gamma-, and Deltabaculovirus genera (2, 3). Alpha-and betabaculoviruses comprise lepidopteran-specific NPVs and GVs, respectively. Many lepidopteran species are susceptible to baculoviruses from different species. Even simultaneous infections, so-called coinfections or mixed infections, of two NPVs (4), two GVs (5), and NPVs and GVs (6, 7) have been observed.Larvae of the turnip moth, Agrotis segetum (Denis & Schiffermüller) (Lepidoptera: Noctuidae), so-called common cutworms, are important agricultural pests (8). Two different alphabaculovirus isolates, Agrotis segetum nucleopolyhedrovirus A (AgseNPV-A; also called the Polish isolate) and A. segetum nucleopolyhedrovirus B (AgseNPV-B; also termed the Oxford isolate) (9-11), as well as the betabaculovirus Agrotis segetum granulovirus (AgseGV) (12), were isolated and characterized from A. segetum larvae. AgseGV was tested extensively as a biocontrol agent for the control of A. segetum in the field (13-16), and AgseNPV-B has shown its potential as a biocontrol agent under laboratory conditions (13).Both viruses were found to infect A. segetum larvae simultaneously (17), but little is known about possible in...

show abstract

Efficacy of a Spanish strain of Agrotis segetum granulosis virus (Baculoviridae) against Agrotis segetum Schiff. (Lep., Noctuidae) on corn

Cited by 28 publications

References 7 publications

A Comparison of the Efficacy of Nuclear Polyhedrosis and Granulosis Viruses in Spray and Bait Formulations for the Control ofAgrotis segetum(Lepidoptera: Noctuidae) in Maize

A Comparison of the Efficacy of Nuclear Polyhedrosis and Granulosis Viruses in Spray and Bait Formulations for the Control ofAgrotis segetum(Lepidoptera: Noctuidae) in Maize

A new entomopathogenic nematode species from Turkey, Steinernema websteri (Rhabditida: Steinernematidae), and its virulence

Mortality of Cutworm Larvae Is Not Enhanced by Agrotis segetum Granulovirus and Agrotis segetum Nucleopolyhedrovirus B Coinfection Relative to Single Infection by Either Virus

Contact Info

Product

Resources

About