Spatial separation of semiochemical Lurem-TR and entomopathogenic fungi to enhance their compatibility and infectivity in an autoinoculation system for thrips management

D.K. Mfuti, S. Subramanian, R.W.H.M. van Tol, G.L. Wiegers, W.J. de Kogel, S. Niassy, H. du Plessis, S. Ekesi, N.K. Maniania

Research output: Contribution to journalArticleAcademicpeer-review

19 Citations (Scopus)

Abstract

BACKGROUND
The effect of spatial separation of the semiochemical Lurem-TR, which has been found to inhibit conidia of entomopathogenic fungi when put together, on the persistence of conidia of Metarhizium brunneum and M. anisopliae was evaluated in the greenhouse and field in order to develop an autodissemination strategy for the management of Megalurothrips sjostedti on cowpea crop. Influence of spatial separation of the semiochemical on thrips attraction and conidial acquisition by thrips from the autoinoculation device was also investigated in the field.
RESULTS
Persistence of conidia of M. brunneum and M. anisopliae increased with distance of separation of Lurem-TR. Direct exposure of fungus without separation from Lurem-TR recorded the lowest conidial germination as compared with the other treatments. Attraction of thrips to the device also varied significantly according to distance between device and semiochemical, with a higher number of thrips attracted when Lurem-TR was placed in a container below the device and at 10 cm distance. There was no significant difference in conidial acquisition between spatial separation treatments of conidia and Lurem-TR. Attraction of other insect pests to the device did not significantly vary between treatments. Positive correlations were found between conidial acquisition and thrips attraction.
CONCLUSION
This study suggests that spatial separation of fungal conidia from Lurem-TR in an autoinoculation device could provide a low-cost strategy for effective management of thrips in grain legume cropping systems.

Original languageEnglish
Pages (from-to)131-139
JournalPest Management Science
Volume72
Issue number1
DOIs
Publication statusPublished - 2016

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semiochemicals
entomopathogenic fungi
Thysanoptera
pathogenicity
conidia
Metarhizium brunneum
Megalurothrips sjostedti
Metarhizium anisopliae
direct contact
cowpeas
insect pests
cropping systems
containers
legumes
germination
greenhouses
fungi
crops

Cite this

@article{bb850b7c1c8447f1bc6bbef88523d610,
title = "Spatial separation of semiochemical Lurem-TR and entomopathogenic fungi to enhance their compatibility and infectivity in an autoinoculation system for thrips management",
abstract = "BACKGROUNDThe effect of spatial separation of the semiochemical Lurem-TR, which has been found to inhibit conidia of entomopathogenic fungi when put together, on the persistence of conidia of Metarhizium brunneum and M. anisopliae was evaluated in the greenhouse and field in order to develop an autodissemination strategy for the management of Megalurothrips sjostedti on cowpea crop. Influence of spatial separation of the semiochemical on thrips attraction and conidial acquisition by thrips from the autoinoculation device was also investigated in the field.RESULTSPersistence of conidia of M. brunneum and M. anisopliae increased with distance of separation of Lurem-TR. Direct exposure of fungus without separation from Lurem-TR recorded the lowest conidial germination as compared with the other treatments. Attraction of thrips to the device also varied significantly according to distance between device and semiochemical, with a higher number of thrips attracted when Lurem-TR was placed in a container below the device and at 10 cm distance. There was no significant difference in conidial acquisition between spatial separation treatments of conidia and Lurem-TR. Attraction of other insect pests to the device did not significantly vary between treatments. Positive correlations were found between conidial acquisition and thrips attraction.CONCLUSIONThis study suggests that spatial separation of fungal conidia from Lurem-TR in an autoinoculation device could provide a low-cost strategy for effective management of thrips in grain legume cropping systems.",
author = "D.K. Mfuti and S. Subramanian and {van Tol}, R.W.H.M. and G.L. Wiegers and {de Kogel}, W.J. and S. Niassy and {du Plessis}, H. and S. Ekesi and N.K. Maniania",
year = "2016",
doi = "10.1002/ps.3979",
language = "English",
volume = "72",
pages = "131--139",
journal = "Pest Management Science",
issn = "1526-498X",
publisher = "Wiley",
number = "1",

}

Spatial separation of semiochemical Lurem-TR and entomopathogenic fungi to enhance their compatibility and infectivity in an autoinoculation system for thrips management. / Mfuti, D.K.; Subramanian, S.; van Tol, R.W.H.M.; Wiegers, G.L.; de Kogel, W.J.; Niassy, S.; du Plessis, H.; Ekesi, S.; Maniania, N.K.

In: Pest Management Science, Vol. 72, No. 1, 2016, p. 131-139.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Spatial separation of semiochemical Lurem-TR and entomopathogenic fungi to enhance their compatibility and infectivity in an autoinoculation system for thrips management

AU - Mfuti, D.K.

AU - Subramanian, S.

AU - van Tol, R.W.H.M.

AU - Wiegers, G.L.

AU - de Kogel, W.J.

AU - Niassy, S.

AU - du Plessis, H.

AU - Ekesi, S.

AU - Maniania, N.K.

PY - 2016

Y1 - 2016

N2 - BACKGROUNDThe effect of spatial separation of the semiochemical Lurem-TR, which has been found to inhibit conidia of entomopathogenic fungi when put together, on the persistence of conidia of Metarhizium brunneum and M. anisopliae was evaluated in the greenhouse and field in order to develop an autodissemination strategy for the management of Megalurothrips sjostedti on cowpea crop. Influence of spatial separation of the semiochemical on thrips attraction and conidial acquisition by thrips from the autoinoculation device was also investigated in the field.RESULTSPersistence of conidia of M. brunneum and M. anisopliae increased with distance of separation of Lurem-TR. Direct exposure of fungus without separation from Lurem-TR recorded the lowest conidial germination as compared with the other treatments. Attraction of thrips to the device also varied significantly according to distance between device and semiochemical, with a higher number of thrips attracted when Lurem-TR was placed in a container below the device and at 10 cm distance. There was no significant difference in conidial acquisition between spatial separation treatments of conidia and Lurem-TR. Attraction of other insect pests to the device did not significantly vary between treatments. Positive correlations were found between conidial acquisition and thrips attraction.CONCLUSIONThis study suggests that spatial separation of fungal conidia from Lurem-TR in an autoinoculation device could provide a low-cost strategy for effective management of thrips in grain legume cropping systems.

AB - BACKGROUNDThe effect of spatial separation of the semiochemical Lurem-TR, which has been found to inhibit conidia of entomopathogenic fungi when put together, on the persistence of conidia of Metarhizium brunneum and M. anisopliae was evaluated in the greenhouse and field in order to develop an autodissemination strategy for the management of Megalurothrips sjostedti on cowpea crop. Influence of spatial separation of the semiochemical on thrips attraction and conidial acquisition by thrips from the autoinoculation device was also investigated in the field.RESULTSPersistence of conidia of M. brunneum and M. anisopliae increased with distance of separation of Lurem-TR. Direct exposure of fungus without separation from Lurem-TR recorded the lowest conidial germination as compared with the other treatments. Attraction of thrips to the device also varied significantly according to distance between device and semiochemical, with a higher number of thrips attracted when Lurem-TR was placed in a container below the device and at 10 cm distance. There was no significant difference in conidial acquisition between spatial separation treatments of conidia and Lurem-TR. Attraction of other insect pests to the device did not significantly vary between treatments. Positive correlations were found between conidial acquisition and thrips attraction.CONCLUSIONThis study suggests that spatial separation of fungal conidia from Lurem-TR in an autoinoculation device could provide a low-cost strategy for effective management of thrips in grain legume cropping systems.

U2 - 10.1002/ps.3979

DO - 10.1002/ps.3979

M3 - Article

VL - 72

SP - 131

EP - 139

JO - Pest Management Science

JF - Pest Management Science

SN - 1526-498X

IS - 1

ER -