Metarhizium majus and Metarhizium robertsii show enhanced activity against the coleopteran pests Holotricha serrata and Oryctes rhinoceros

Velavan, V.; Sivakumar, G.; Rangeshwaran, R.; Sundararaj, R.; Sasidharan, T. O.

doi:10.18311/jbc/2017/18078

Cited by 14 publications

(9 citation statements)

References 23 publications

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“…Although several Metarhizium species have been assessed against CRB under laboratory and field conditions, M. majus (J.R. Johnston) J.F. Bischoff, Rehner & Humber (formerly M. anisopliae var majus ) has been the most effective ( Velavan et al 2017 ). Several other fungal species including Metarhizium guizhouense Q.T.…”

Section: Natural Enemies Of Crb In Its Native Rangementioning

confidence: 99%

“…Formulations have been developed as wettable powders (WP), with the most common composition being a mixture of dried conidia and kaolin (20:80) ( Hamid et al 2005 , Ramle et al 2006 , Ramle et al 2007 , Indriyanti et al 2017b ). In India, fresh conidial suspensions (TCS) and powder-based formulations (PBF) of M. majus resulted in 85–90% mortality of third-instar CRB larvae within 2 wk ( Velavan et al 2017 ). Similarly, the treatment of rotting oil palm debris with M. majus based formulations (WP) that were reconstituted in water reduced larval populations by 80% in Malaysia ( Ramle et al 2006 ).…”

Section: Augmentative Biological Control For Crbmentioning

confidence: 99%

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Can Biological Control Overcome the Threat From Newly Invasive Coconut Rhinoceros Beetle Populations (Coleoptera: Scarabaeidae)? A Review

Paudel

Mansfield

Villamizar

et al. 2021

Annals of the Entomological Society of America

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The coconut rhinoceros beetle (CRB: Oryctes rhinoceros Linnaeus) is one of the most damaging pests to coconut and oil palms in Asia and the Pacific Islands. Adults bore into the crown and damage developing fronds, which affects tree development and yield. The insect is native to South and Southeast Asia and was inadvertently introduced into the Pacific in 1909. It has since spread to several Pacific island nations and territories, causing significant economic impact on these important coconut and palm-growing regions. In the 1950s and 1960s, an international biological control effort was initiated to search for and release natural enemy species. Release of the Oryctes rhinoceros nudivirus Huger (OrNV) and the species complex of Metarhizium Sorokin (Hypocreales: Clavicipitaceae) was successful in controlling CRB in its invaded range. Recently a new biotype of the beetle, known as CRB-G, has spread into the Pacific Islands causing unprecedented levels of damage due to the failure of previously successful biological control agents (BCAs) to suppress this biotype. The re-emergence of CRB as a serious pest warrants a rigorous re-evaluation of potential BCAs and a new search for effective natural enemies if necessary. In this article, we review literature on CRB to 1) analyze past introductions of BCAs and their effectiveness; 2) identify potentially important natural enemies and their geographical origins; and 3) assess possible approaches for utilization of BCAs against the new wave of CRB invasion. Research gaps and directions deserving future attention are highlighted and a strategy for renovation of biological controls for CRB suggested.

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Section: Natural Enemies Of Crb In Its Native Rangementioning

confidence: 99%

Section: Augmentative Biological Control For Crbmentioning

confidence: 99%

Can Biological Control Overcome the Threat From Newly Invasive Coconut Rhinoceros Beetle Populations (Coleoptera: Scarabaeidae)? A Review

Paudel

Mansfield

Villamizar

et al. 2021

Annals of the Entomological Society of America

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“…majus in South Africa, therefore, increases the number of available local EPF isolates that can be used in agricultural ecosystems for the management of insect pests. Its potential as a biocontrol agent, especially Coleoptera [ 7 , 20 ], of which the banded fruit weevil [ 30 ] is a key pest in deciduous fruit and grapevine in South Africa, will be investigated in future studies. This is of vital importance in the South African context, as a large proportion of particularly locally produced fruit crops is destined for the European market, which has strict regulations on chemical pesticide use.…”

Section: Discussionmentioning

confidence: 99%

“…Many products derived from the species are on the market for use against a wide range of economically important insect pests of various arthropod orders [ 4 , 5 ]. Such orders include Lepidoptera (leaf miners), Coleoptera (white grubs), Diptera (fruit flies), Orthoptera (locusts and grasshoppers), Hemiptera (whiteflies), Thysanoptera (thrips), and Hymenoptera (ants) [ 2 , 4 , 6 , 7 ]. Commercially developed products include Real Metarhizium69 (L9281), derived from the Metarhizium anisopliae (Metchn.)…”

Section: Introductionmentioning

confidence: 99%

Characterisation of Metarhizium majus (Hypocreales: Clavicipitaceae) isolated from the Western Cape Province, South Africa

et al. 2021

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Entomopathogenic fungi (EPF) are important soil-dwelling entomopathogens, which can be used as biological control agents against pest insects. EPF are capable of causing lethal epizootics in pest insect populations in agroecosystems. During a survey of the orchard soil at an organic farm, different EPF species were collected and identified to species level, using both morphological and molecular techniques. The EPF were trapped from soil samples taken from an apricot orchard. The traps, which were baited in the laboratory, used susceptible host insects, including the last-instar larvae of Galleria mellonella (wax moth larvae) and Tenebrio molitor (mealworm larvae). The potential pathogenicity of the local Metarhizium majus isolate was tested and verified using susceptible laboratory-reared last-instar T. molitor larvae. The identification of the M. majus isolated from South African soil was verified using both morphological and molecular techniques. The occurrence of M. majus in the South African soil environment had not previously been reported.

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“…Species belonging to the genus Metarhizium are well-studied entomopathogens, which are widely commercialised. Many products derived from the species are on the market, for use against a wide range of economically-important insect pests [4,5].…”

Section: Introductionmentioning

confidence: 99%

Characterisation ofMetarhizium majus(Hypocreales: Clavicipitaceae) isolated from the Western Cape province, South Africa

Mathulwe

Jacobs

Malan

et al. 2020

Preprint

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Entomopathogenic fungi (EPF) are important soil-dwelling entomopathogens, which can be used as biocontrol agents against pest insects. During a survey of the orchard soil at an organic farm, the EPF were identified to species level, using both morphological and molecular techniques. The EPF were trapped from soil samples, taken from an apricot orchard, which were baited in the laboratory, using susceptible host insects. The identification of Metarhizium majus from South African soil, using both morphological and molecular techniques, is verified. The occurrence of M. majus in the South African soil environment had not previously been reported.

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Metarhizium majus and Metarhizium robertsii show enhanced activity against the coleopteran pests Holotricha serrata and Oryctes rhinoceros

Cited by 14 publications

References 23 publications

Can Biological Control Overcome the Threat From Newly Invasive Coconut Rhinoceros Beetle Populations (Coleoptera: Scarabaeidae)? A Review

Can Biological Control Overcome the Threat From Newly Invasive Coconut Rhinoceros Beetle Populations (Coleoptera: Scarabaeidae)? A Review

Characterisation of Metarhizium majus (Hypocreales: Clavicipitaceae) isolated from the Western Cape Province, South Africa

Characterisation ofMetarhizium majus(Hypocreales: Clavicipitaceae) isolated from the Western Cape province, South Africa

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