Biocontrol potential of entomopathogenic nematodes heterorhabditis and steinernema against pupae and adults of white grubHolotrichia serrata F.

Sankaranarayanan, C.; Somasekhar, Nethi; Singaravelu, B.

doi:10.1007/bf02943567

Cited by 7 publications

(4 citation statements)

References 10 publications

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“…Several factors have been proposed to explain these differences in pathogenicity, including (1) the EPN body size, with S. carpocapsae being the smallest, which provides efficiency for host penetration [85]; (2) the pathogenicity of symbiotic bacteria types "swarming" and "stimulated" [86], where the former type has a more lethal activity and is present in the dauer juveniles, whilst the second type is a latent immobile stage that has a muchreduced lethal activity in response to environmental adversities [83]; and (3) the immune response of the host, such as the phagocytosis and humoral mechanisms against the symbiotic bacteria [42,83]. It was reported that S. carpocapsae possesses a higher rate of mortality on several species of Hemiptera [83], Coleoptera [27,39,[87][88][89], Diptera [29,90], and Lepidoptera [28], which correlates with our experimental results where S. carpocapsae killed G. mellonella, C. sordidus, and M. hemipterus larvae in 48 h. However, S. costaricense could not parasite after one round of infection. Shapiro-Ilan and Raymond [84] proposed that the main drawback of EPN reduction virulence is due to the need of serial propagation in vivo, which can accentuate competition and reduce the reproductive rate, leading to virulence instability.…”

Section: Discussionmentioning

confidence: 99%

Molecular Identification and Phylogenetic Diversity of Native Entomopathogenic Nematodes, and Their Bacterial Endosymbionts, Isolated from Banana and Plantain Crops in Western Colombia

Londoño-Caicedo,

Uribe-Londoño,

Buitrago-Bitar

et al. 2023

Agronomy

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With the increasing negative impacts of food production worldwide caused by pests, the recovery of native entomopathogenic nematodes (EPNs) is relevant, since they are adapted to local environments, entomofauna, and significant virulence. Therefore, the present study was designed to recover and understand the phylogenetic diversity of EPNs and their associated bacterial endosymbionts, from banana and plantain crops, as alternatives for the control of weevil species. An extensive sampling of western Colombia covered 325 ha, yielding the recovery of three EPNs’ isolates (0.49% of the samples). The molecular characterization included four mitochondrial and nuclear loci, which, after merging with the sequences of 48 species, confirmed the presence of Steinernema carpocapsae, the first report of S. costaricense in South America, and monophyly in most of the Steinernema clades. The tree topologies were consistent for the nuclear loci but not for mitochondrial, probably due to the high nucleotide substitution rate, deficit in the number of species available for these loci, and incomplete lineage sorting. The endosymbiotic bacteria associated with S. carpocapsae were identified as Xenorhabdus nematophila. However, the S. costaricense bacterial symbiont presented a genetic similarity to X. koppenhoeferi and X. khoisanae, which are still uncertain in their classification. The identification of S. costaricense in South America indicates the wide range distribution of this species in the Americas and its ability to persist in different soil types. For the first time, EPN isolation and phylogenetic characterization are directed to plantain and banana crops. Leveraging EPNs’ diversity promises novel applications for crop protection, while the genetic resources from the bacterial endosymbionts may provide metabolites with a wide spectrum of uses, either for agricultural or medicinal purposes.

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Section: Discussionmentioning

confidence: 99%

Molecular Identification and Phylogenetic Diversity of Native Entomopathogenic Nematodes, and Their Bacterial Endosymbionts, Isolated from Banana and Plantain Crops in Western Colombia

Londoño-Caicedo,

Uribe-Londoño,

Buitrago-Bitar

et al. 2023

Agronomy

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“…Di berbagai negara uret merupakan hama penting pada tanaman tebu dengan kerusakan dapat mencapai lebih dari 39% (Sosa 1984;Cock and Allard 2013;Gite et al 2015) dan kehilangan hasil mencapai 48 ton/ha (Lamani et al 2017). Pengendalian hama uret pada tanaman tebu dilakukan dengan berbagai cara, terutama mengandalkan jamur Metarhizium anisopliae (Sankaranarayanan et al 2013;Chelvi et al 2011) dengan nematoda (Manisegaran et al 2011;Rathour et al 2015;Supekar and Mohite 2015) dengan bakteri Bacillus thuringiensis (Singaravelu et al 2013) dengan insektisida karbofuran serta kuinalfos (Miah et al 2008) dengan organo karbamat dan organofosfat (Siddique et al 2009) dengan insektisida klorpirifos (Rahama et al 2014) dengan melakukan bongkar ratoon atau mengurangi jumlah ratoon (Cherry 1988).…”

Section: Pendahuluanunclassified

PERIODE PENUTUPAN TANAH DENGAN MULSA PLASTIK TERHADAP POPULASI URET (Lepidiota stigma FABRICIUS) DAN PRODUKTIVITAS TEBU / The Effect of Plastic Mulch Period on White Grubs Population and Productivity of Sugar Cane

Subiyakto¹,

Sunarto

2018

j. penelitian tanam. industri

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Penelitian untuk mengetahui periode penutupan tanah menggunakan mulsa plastik terhadap populasi uret dan produktivitas tebu dilaksanakan di areal endemik uret di Desa Banyuputih, Situbondo pada musim tanam 2014/2015. Perlakuan terdiri atas lima penutupan mulsa plastik (1) Sebelum turun hujan (SBH), (2) Satu hari setelah turun hujan dengan curah hujan 14 mm (1 HSH), (3) Tujuh hari setelah turun hujan (7 HSH), (4) 14 hari setelah turun hujan (14 HSH), (5) 21 hari setelah turun hujan (21 HSH) dan Kontrol (tidak ditutup mulsa plastik). Penelitian menggunakan Rancangan Acak Kelompok diulang lima kali. Parameter yang diamati meliputi populasi uret dan dewasa (kumbang), persentase kerusakan tanaman, produktivitas tebu dan hablur serta data curah hujan. Hasil penelitian menunjukkan bahwa semua perlakuan penutupan mulsa plastik secara nyata dapat menekan populasi uret dan kerusakan tanaman apabila dibandingkan dengan kontrol. Perlakuan penutupan mulsa plastik satu dan tujuh hari setelah turun hujan memberikan selisih produktivitas tebu masing-masing 83 ton/ha (hablur 7,6 ton/ha) dan 96 ton/ha (hablur 7,8 ton/ha) di atas kontrol dan kedua perlakuan tersebut dapat direkomendasikan. Penelitian ini perlu ditindaklanjuti terutama untuk mengetahui efisiensi penggunaan mulsa plastik dalam pengendalian uret pada tanaman tebu di daerah endemik uret. Kata kunci: periode penutupan, mulsa plastik, pengendalian uret, populasi, produktivitas tebu ABSTRACT The period of using plastic mulch on white grubs population and productivity of sugar cane at white grubs endemic area was conducted in Banyuputih Village, Situbondo on planting season of 2014/2015. Treatment consisted of 5 plastic mulch period (1) Before raining (SBH), (2) One day after rainfall, 14 mm (1 HSH), (3) Seven days after raining (7 HSH), (4) 14 days after raining (14 HSH), (5) 21 days after raining (21 HSH) and Control (without mulching plastic). Research using Randomized Block Design was repeated 5 times. Parameters observed in white grubs and adult (beetle), percentage of plant damage, productivity of sugar cane and sugar and rainfall data. The results showed that all plastic mulch period treatments significantly reduced white grubs population and crop damage compared with controls. Treatment of plastic mulch period of one and seven days after raining provides a difference in productivity of sugar cane of 83 tons/ha (7.7 tons/ha) and 96 tons/ha (sugar 7.8 tons/ha) above the control and both treatments can be recommended. This research needs to be continued especially to find out the efficiency of using plastic mulch in endemic white grubs area.

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“…Biocontrol potential of two species each of Heterorhabditis and Steinernema against pupae and adults of the white grub H. serrata was investigated [351]. In further laboratory tests, a combination of EPNs and EPF produced higher levels of mortality than individual treatments [352].…”

Section: Othersmentioning

confidence: 99%

A 100 years of biological control of sugarcane pests in India: review and perspective.

Srikanth¹

2016

CABI Reviews

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Insect pests constitute a major biotic stress in sugarcane in India as they attack the crop from the time of planting until almost harvest, inflicting yield and sugar losses. Biological control has always received a prominent position among the pest management tools, facilitated by the unique semi-perennial crop habitat and low pesticide usage. Biocontrol research of the early 1930s and 40s was characterized by surveys focusing on identification and studies on the basic biology of natural enemies. Conservation and redistribution , and introduction and colonization of predominant parasitoids was practiced very early, and even in the recent past, with remarkable success. Mass multiplication and field evaluation that began in the early decades continue today, as is demonstrated by the use of the most exploited parasitoid Trichogramma chilonis. Several parasitoids and predators of borers and sucking pests were investigated systematically when the need arose. Among entomopathogens, granulosis viruses and fungi received considerable attention; a simple formulation of Beauveria brongniartii reached commercial production for the control of the white grub Holotrichia serrata. In recent years, isolates of Bacillus thuringiensis from sugarcane soil have been examined and a scarabaeid-specific cry gene has been identified. Preliminary studies of kairomonal principles from borers as attractants to the larval parasitoid Cotesia flavipes have been carried out. Organizational support to the cause of biological control includes coordinated research efforts from government agencies, production of biocontrol agents by commercial insectaries and promotion of technologies by the sugar industry. In this review, we chronicle the major research findings over the past eight decades, portray an overview of their significance and project the prospects and priorities for biological control research and promotion in the country.

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Biocontrol potential of entomopathogenic nematodes heterorhabditis and steinernema against pupae and adults of white grubHolotrichia serrata F.

Cited by 7 publications

References 10 publications

Molecular Identification and Phylogenetic Diversity of Native Entomopathogenic Nematodes, and Their Bacterial Endosymbionts, Isolated from Banana and Plantain Crops in Western Colombia

Molecular Identification and Phylogenetic Diversity of Native Entomopathogenic Nematodes, and Their Bacterial Endosymbionts, Isolated from Banana and Plantain Crops in Western Colombia

PERIODE PENUTUPAN TANAH DENGAN MULSA PLASTIK TERHADAP POPULASI URET (Lepidiota stigma FABRICIUS) DAN PRODUKTIVITAS TEBU / The Effect of Plastic Mulch Period on White Grubs Population and Productivity of Sugar Cane

A 100 years of biological control of sugarcane pests in India: review and perspective.

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