Reproductive potential and Host Searching Ability of Entomopathogenic nematode, Steinernema feltiae

Rahoo, Ali Murad; Mukhtar, Tariq; Gowen, S. R.; Rahoo, Rehana Kanwal; Abro, Shaukat Ibrahim

doi:10.17582/journal.pjz/2017.49.1.229.234

Cited by 24 publications

(17 citation statements)

References 10 publications

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“…Likewise, the pest pupates in the soil and by hoeing the pupae of the pest are exposed to sun and are destroyed or eaten by birds and caused reduction in pest infestation (Srinivasan, 2008). Scores of parasitoids and entomopathogenic nematodes (Rahoo et al, 2017) have been reported as natural enemies of ESFB throughout the world and are responsible for keeping the pest populations under reasonable control. Among these, the egg parasitoid T. chilonis has been proved to be the most effective (Krishnamoorthy, 2012) and caused increase in yield.…”

Section: Discussionmentioning

confidence: 99%

MANAGEMENT OF EGGPLANT SHOOT AND FRUIT BORER (Leucinodes orbonalis Guenee) BY INTEGRATING DIFFERENT NON-CHEMICAL APPROACHES

Javed¹,

Mukhtar²,

Javed³

et al. 2017

PAKJAS

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Eggplant shoot and fruit borer (ESFB), Leucinodes orbonalis Guenee, a destructive pest of eggplant (Solanum melongena L.), adversely affects quality and yield of eggplant fruit throughout the world. Currently, its management is mainly relied on insecticides which are inimical to humans, livestock and environment. To get rid of the pernicious consequences of chemicals, use of alternative non-chemical approaches has been emphasized. Ergo, in the present study non-chemical methods viz. hoeing, clipping of damaged fruits and shoots and weeding at weekly intervals and a biocontrol agent Trichogramma chilonis individually and in combination were assessed for the management of ESFB. All the treatments though varied in their efficacies, caused significant reductions in infestation of ESFB and increased yield as compared to control. Combination of practices gave better results as compared to individual treatments with few exceptions. In general, the combined treatment (T. chilonis + hoeing + clipping) was found to be the most effective in reducing pest infestations and increasing yield followed by another combined treatment where hoeing, clipping and weeding were applied conjointly. Application of T. chilonis singly was the least effective treatment; however, incorporation of T. chilonis with other practices gave good results. Similarly, integration of hoeing with clipping of infested shoots and fruits at weekly intervals also proved satisfactory in reducing pest infestation and enhancing yield. It is concluded that integration of non-chemical approaches will help reduce infestation of ESFB significantly and will make a major contribution to both climate-change mitigation and sustainable crop production systems.

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Section: Discussionmentioning

confidence: 99%

MANAGEMENT OF EGGPLANT SHOOT AND FRUIT BORER (Leucinodes orbonalis Guenee) BY INTEGRATING DIFFERENT NON-CHEMICAL APPROACHES

Javed¹,

Mukhtar²,

Javed³

et al. 2017

PAKJAS

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“…The S. feltiae isolate was used for concentration testing because it was among the most virulent isolates of the selection test. Also, it has characteristics that favor its action as a biological control agent, such as high multiplication capacity (RAHOO et al, 2017), which results from its fast life cycle and enables the production of several generations in short periods of time.…”

Section: Concentration Testingmentioning

confidence: 99%

Section: Concentration Testingmentioning

confidence: 99%

“…The mortality percentage varied between 34.0 and 88.0%, and the higher concentrations (50 and 100 IJs/cm²) were responsible for the highest mortality rates (88.0 and 86.0%, respectively; Figure 1). According to Rahoo et al (2017), the chance of infection of an insect can be influenced by the number of nematodes applied, as higher concentrations increase the chances of infection and, consequently, of higher rates of mortality. However, we observed that in concentrations of 50 and 100 IJs/cm² the mortalities were similar, However, we observed that in concentrations of 50 and 100 IJs/cm² the mortalities were similar, suggesting that concentrations higher than 100 IJs/ cm² may cause intraspecific competition among nematodes.…”

Section: Concentration Testingmentioning

confidence: 99%

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Pathogenicity and virulence of entomopathogenic nematodes against Dichelops melacanthus Dallas (Hemiptera: Pentatomidae)

Guide

Alves

Fernandes

et al. 2019

SCA

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Infestations of Dichelops melacanthus (Dallas; Hemiptera: Pentatomidae) in corn and wheat in Brazil, and the subsequent damage, have increased in recent years, mainly owing to this insect’s ability to survive the off-season. The control of this insect is mainly carried out with chemical insecticides, but the development of alternative methods, such as biological control, can contribute to a more sustainable management. Thus, the objective of this study was to evaluate the potential of entomopathogenic nematodes (EPNs) for the control of D. melacanthus. A selection test was performed with 15 isolates of genera Steinernema and Heterorhabditis regarding their pathogenicity and virulence on adults of D. melacanthus. Concentration (10, 20, 40, 50, and 100 infective juveniles (IJs)/cm2) and greenhouse tests were carried out only with the Steinernema feltiae isolate (IBCB-n 47). All experiments were conducted in a completely randomized design. The selection test data were submitted to the Scott-Knott averages test (P ? 0.05), and those from the greenhouse test to the Student's t-test. The results of the concentration assay were subjected to regression analysis. All isolates showed pathogenicity and virulence in adults of D. melacanthus. The isolates GL (Heterorhabditis amazonensis), IBCB-n27 (Steinernema sp.), and RSC05 (H. amazonensis) were the most virulent (80.0, 82.0, and 88.0% mortality, respectively). The higher concentrations of S. feltiae (50 and 100 IJs/cm²) were responsible for the highest mortality rates of green belly stink bug (88.0 and 86.0%, respectively). In the greenhouse test, S. feltiae caused higher mortality (38%) than the control.

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“…A. tritici is one of the important pests of wheat in Iraq and its infection on wheat has been reported up to 22.9% resulting in 30% reduction in yield. The nematode has been reported to infect barley from Iraq much later where its infestation reached up to 90% (Al-Talib et al, 1986;Stephan, 1988;Kassi et al, 2018;Nabeel et al, 2018;Rahoo et al, 2017Rahoo et al, , 2018. The nematode is one of the major pests of wheat in Pakistan and has been found prevalent in most of the wheat growing areas causing yield losses up to 3%.…”

mentioning

confidence: 99%

Re-Emergence of Wheat Seed Gall Nematode (Anguina tritici) in Punjab, Pakistan

Mukhtar¹,

Jabbar²,

Raja³

et al. 2018

PJZ

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Reproductive potential and Host Searching Ability of Entomopathogenic nematode, Steinernema feltiae

Cited by 24 publications

References 10 publications

MANAGEMENT OF EGGPLANT SHOOT AND FRUIT BORER (Leucinodes orbonalis Guenee) BY INTEGRATING DIFFERENT NON-CHEMICAL APPROACHES

MANAGEMENT OF EGGPLANT SHOOT AND FRUIT BORER (Leucinodes orbonalis Guenee) BY INTEGRATING DIFFERENT NON-CHEMICAL APPROACHES

Pathogenicity and virulence of entomopathogenic nematodes against Dichelops melacanthus Dallas (Hemiptera: Pentatomidae)

Re-Emergence of Wheat Seed Gall Nematode (Anguina tritici) in Punjab, Pakistan

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