Effects of insecticides and synergistic chemicals on the efficacy of the entomopathogenic nematode Steinernema feltiae (Rhabditida: Steinernematidae) against Leptinotarsa decemlineata (Coleoptera: Chrysomelidae)

Özdemir, Esengül; İnak, Emre; Evlice, Emre; Yüksel, Ebubekir; Delialioğlu, Rabia Albayrak; Susurluk, İ. Alper

doi:10.1016/j.cropro.2021.105605

Cited by 18 publications

(12 citation statements)

References 51 publications

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“…To date, the pathogenicity of EPN species has been studied against a variety of insect pests of agricultural importance under controlled conditions and promising results have been reported (Karabörklü et al, 2015;Yuksel and Canhilal, 2018;Acharya et al, 2019;Mokrini et al, 2020;Öğretmen et al, 2020;Özdemir et al, 2021). However field studies on the efficacy of EPNs against many agricultural pests are still limited and the performance of EPNs in field conditions may vary remarkably as compared to laboratory bioassays.…”

Section: The Efficacy Of Epns On the Larvae Of Zabrus Spp Clairville 1806 (Coleoptera: Carabidae)mentioning

confidence: 99%

Field Performance of Entomopathogenic Nematodes against the Larvae of Zabrus spp. Clairville, 1806 (Coleoptera: Carabidae)

Yüksel¹,

Taskesen

Canhilal³

2021

Uluslararası Tarım Ve Yaban Hayatı Bilimleri Dergisi

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The ground beetles, Zabrus spp. Clairville, 1806 (Coleoptera: Carabidae) is one of the major pests of wheat plants across the world, and the control of this pest is a challenging issue. In the present study, the control potential of two local entomopathogenic nematode (EPN) species [Heterorhabditis bacteriophora Poinar, 1976 (Rhabditida: Heterorhabditidae) and Steinernema feltiae Filipjev, 1934 (Rhabditida: Steinernematidae)] against the larvae of Zabrus spp. was evaluated with two trials under field conditions in 2015. EPNs were applied at the concentration of 1 x 10 6 IJs m -2 to the soil surface in mid-April and the number of alive larvae was assessed 14 days after treatment (AT). In addition, Zabrus spp.damaged wheat plants were counted to establish the efficacy of EPNs on the larvae of Zabrus spp. in short (14 days AT) and long term (6 months AT). EPNs reduced the number of alive Zabrus spp. larvae by at least 50% as compared to the control treatments in both trials. Altgough there was a remarkable decrease in the number of Zabrus spp.-damaged wheat plants to which EPNs were applied, this decrease did not produce a significant effect. Present findings indicate that EPNs tested have a good potential for sustainable management of Zabrus spp.

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Section: The Efficacy Of Epns On the Larvae Of Zabrus Spp Clairville 1806 (Coleoptera: Carabidae)mentioning

confidence: 99%

Field Performance of Entomopathogenic Nematodes against the Larvae of Zabrus spp. Clairville, 1806 (Coleoptera: Carabidae)

Yüksel¹,

Taskesen

Canhilal³

2021

Uluslararası Tarım Ve Yaban Hayatı Bilimleri Dergisi

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“…Heterorhabditidae and Steinernematidae are families of entomopathogenic nematodes (EPNs) mainly used for biological control of different economically invasive pests at field and laboratory levels [ 33 , 34 , 35 , 36 , 37 ]. They have advantages over the conventional chemical control because they have the ability to actively search for their hosts in cryptic habitats like leaf surfaces [ 38 , 39 , 40 , 41 ].…”

Section: Introductionmentioning

confidence: 99%

“…EPNs are reported to be used for the control of leaf-eating caterpillars and other insect pests of many crops [ 43 ]. Many researchers have studied the efficacy of EPNs in controlling the adult western corn rootworm, Diabrotica virgifera LeConte [ 37 , 44 ], flea beetles, Phyllotreta spp. [ 45 ], and Colorado potato beetle, Leptinotarsa decemlineata (Say) found on leaf surfaces [ 40 ].…”

Section: Introductionmentioning

confidence: 99%

The Entomopathogenic Nematodes H. bacteriophora and S. carpocapsae Inhibit the Activation of proPO System of the Nipa Palm Hispid Octodonta nipae (Coleoptera: Chrysomelidae)

Sanda

Hou

2022

Life

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Entomopathogenic nematodes are biocontrol agents of invasive insect pests in soil and cryptic habitats. Nipa palm hispid, Octodonta nipae, is a pest of palm trees in Sothern China. To address its increasing damage, environmentally friendly control methods are required. This study aimed to test efficacy of Heterorhabditis bacteriophora and Steinernema carpocapsae on O. nipae and investigated the influence of secondary metabolites, nematodes, and their isolated cuticles on the activation of O. nipae’s prophenoloxidase system using qPCR analysis. Our data revealed that O. nipae were less susceptible to H. bacteriophora than S. carpocapsae and penetrations of infective juveniles were higher with S. carpocapsae treatment than H. bacteriophora. Moreover, expression levels of the serine protease P56, prophenoloxidase activation factor 1, PPO and serine protease inhibitor 28 upon S. carpocapsae and H. bacteriophora infections were generally downregulated at all times. However, upon heating, the cuticles lost their inhibitory effects and resulted in upregulation of the PPO gene. Similarly, the addition of arachidonic acid reversed the process and resulted in the upregulation of the PPO gene compared to the control. Further work is needed to identify toxic substances secreted by these EPNs to evade O. nipae’s immune system.

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“…The combined application of the nematode S. feltiae with entomopathogenic fungus Isaria fumosorosea significantly increased the CPB mortality in comparison to single-agent treatment [20]. Özdemir et al [21] observed a synergistic effect between several chemical insecticides and S. feltiae against CPB. On the other hand, the negative effect of the combination has been recorded in the interactions between the EPN S. glaseri and fungus Metarhizium anisopliae [22] and between Steinernema ichnusae and B. bassiana fungus [23].…”

Section: Introductionmentioning

confidence: 99%

Efficacy of the Applied Natural Enemies on the Survival of Colorado Potato Beetle Adults

Půža

Nermuť

Konopická

et al. 2021

Insects

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Colorado potato beetle Leptinotarsa decemlineata is among the most destructive pests of potatoes quickly developing resistance to traditional insecticides. In the present study, we tested the effect of various species and strains of entomopathogenic nematodes on CPB adults, and subsequently, the most effective nematodes were applied alone and in combination with entomopathogenic fungus B. bassiana in pots with potato plants and in the field and their effect on the number of emerging adults was evaluated. In the experimental infections, both the nematode invasion and pathogenicity were variable, and, in several strains, the mortality reached 100%. In pot experiments, soil application of nematodes S. carpocapsae 1343 and S. feltiae Jakub and fungus significantly decreased numbers of emerging CPB adults, while, after the application on leaves, only fungal treatment was effective. The field application of fungus B. bassiana significantly decreased the number of emerging CPB adults in comparison to control sites by ca. 30% while the effect of nematodes and the nematodes–fungus combination was not significant. In conclusion, we demonstrate the necessity of thorough bioassays to select the most effective nematode strains. Entomopathogenic nematodes have the potential to effectively decrease the emergence of CPB adults, but further research is needed to improve the effectiveness in the field.

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Effects of insecticides and synergistic chemicals on the efficacy of the entomopathogenic nematode Steinernema feltiae (Rhabditida: Steinernematidae) against Leptinotarsa decemlineata (Coleoptera: Chrysomelidae)

Cited by 18 publications

References 51 publications

Field Performance of Entomopathogenic Nematodes against the Larvae of Zabrus spp. Clairville, 1806 (Coleoptera: Carabidae)

Field Performance of Entomopathogenic Nematodes against the Larvae of Zabrus spp. Clairville, 1806 (Coleoptera: Carabidae)

The Entomopathogenic Nematodes H. bacteriophora and S. carpocapsae Inhibit the Activation of proPO System of the Nipa Palm Hispid Octodonta nipae (Coleoptera: Chrysomelidae)

Efficacy of the Applied Natural Enemies on the Survival of Colorado Potato Beetle Adults

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