Microbial biopesticides for insect pest management in India: Current status and future prospects

Kumar, Krishna; Sridhar, Jayavel; Murali‐Baskaran, Ramasamy Kanagaraj; Senthil‐Nathan, Sengottayan; Kaushal, Pankaj; Dara, Surendra K.; Arthurs, Steven

doi:10.1016/j.jip.2018.10.008

Cited by 122 publications

(68 citation statements)

References 34 publications

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“…Although, previously studies have reported low control efficiency of this pest [12,13,14]. In relation to Metarhizium rileyi (Farlow), this fungi species possessed high toxicity against lepidopterans larvae and their potential has been explored against this insect group [15]. However, for our knowledge, the activity of the M. rileyi against sucking pest, as whitefly is unknown.…”

Section: Introductionmentioning

confidence: 99%

Potential of Entomopathogenic Fungi as Biological Control Agents of Whitefly (Bemisia tabaci biotype B) (Genn.) (Hemiptera: Aleyrodidae)

Espinosa

Silva

Duarte

et al. 2019

JEAI

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The efficiency of isolates from entomopathogenic fungus Beauveria bassiana, Lecanicillium muscarium and Metarhizium rileyi in the control of eggs and third-instar nymphs of whitefly, Bemisia tabaci biotype B, was evaluated by pathogenicity and virulence tests, under laboratory conditions. For the pathogenicity tests, five leaflets of bean (Phaseolus vulgaris) plants containing 20 nymphs or 20 eggs of B. tabaci biotype B were used. The leaflets were immersed in suspension containing a concentration of 108 conidia/ml of each fungus isolate. Nymph mortality and egg viability were evaluated after seven days. The isolates that caused nymph mortality and egg viability above 80% were submitted to virulence tests, in order to estimate the lethal concentration (LC50) of each isolate. All isolates were pathogenic to eggs and third-instar nymphs of B. tabaci Biotype B. JAB07 of B. bassiana and LCMAP3790 of L. muscarium isolates presented the best results, with nymphs mortality of 96.68 ± 2.25% and 97.74 ± 1.56%, respectively. Additionally, JAB07 was the most virulent isolate, both for eggs and third-instar nymphs, with LC50 estimated of 0.012 and 0.006 × 103 conidia/ml, respectively. We suggest, future field trials are required in order to analyze the real efficiency of this isolate in the control of eggs and nymphs of B. tabaci biotype B in field conditions.

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Section: Introductionmentioning

confidence: 99%

Potential of Entomopathogenic Fungi as Biological Control Agents of Whitefly (Bemisia tabaci biotype B) (Genn.) (Hemiptera: Aleyrodidae)

Espinosa

Silva

Duarte

et al. 2019

JEAI

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“…Regarding virulence against insects, temperate isolates of B. bassiana were significantly more effective against the elm bark beetle (Scolytus scolytus F.) at low temperatures (2 to 6 • C) than isolates of M. anisopliae originating from tropical and sub-tropical latitudes (Doberski, 1981), although it is impossible to separate fungal species differences from differences arising from the geographical sources of the two fungal strains. B. bassiana and M. anisopliae are also sensitive to ultraviolet radiation, prompting UV protectant use in oil-based field sprays (Inglis et al, 1995;Shin et al, 2017;Kumar et al, 2018). UV tolerance often varies among isolates from different latitudes (Braga et al, 2001;Fernandes et al, 2008), and habitat types (Bidochka et al, 2001).…”

Section: Abiotic Conditions and Adaptationmentioning

confidence: 99%

“…Tropical environments support impressive microbial biodiversity (Thompson et al, 2017), including many parasites of arthropods (Mahe et al, 2017). However, by far the most common commercially available EPF in tropical and subtropical agroecosystems belong to two genera: Beauveria and Metarhizium (Ascomycota: Hypocreales) (Faria and Wraight, 2007;Li et al, 2010;Kumar et al, 2018;Mascarin et al, 2019). Here, we review literature focused on controlling arthropod pests with entomopathogens, with particular emphasis on these two genera.…”

Section: Introductionmentioning

confidence: 99%

Tropical Occurrence and Agricultural Importance of Beauveria bassiana and Metarhizium anisopliae

McGuire

Northfield

2020

Front. Sustain. Food Syst.

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Entomopathogenic fungi are often relied on as important components of integrated pest management in tropical agriculture, either as biopesticides or as naturally occurring microbes conserved in the environment. Tropical abiotic conditions are often well-suited for microbial growth, and tropical habitats can be teeming with microbial biodiversity. However, competitive interactions with other fungi and the need to overcome defenses of hosts adapted to high fungal loads may inhibit the ability of insect pathogens to control tropical pests. Here, we review the current literature on Beauveria bassiana and Metarhizium anisopliae inhabiting tropical environments and their potential use as biological control agents. In some cases there is not a clear distinction between temperate and tropical agroecosystems, such as in the level of organic matter or soil texture in agricultural soils. Therefore, the effects of these soil characteristics in temperate agroecosystems are likely applicable to tropical systems as well. In contrast, factors such as microbial biodiversity and seasonal fluctuation in environmental conditions can differ dramatically between temperate and tropical systems. Therefore, we discuss literature that can be generalized to tropical systems. Where temperate and tropical systems are likely to differ we synthesize the literature specifically for tropical agroecosystems. We also provide hypotheses to stimulate future work on latitudinal gradients and the relative importance of biotic and abiotic factors in governing entomopathogen prevalence and community composition. These hypotheses provide a path forward to developing theory guiding the conservation and augmentation of entomopathogenic fungi to prevent pest outbreaks.

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“…The overuse of pesticides has increased selection pressure and expedited the development of resistance to multiple classes of chemical insecticides in different regions of the world [5][6][7][8]. Biological control methods are thus becoming a necessity for the control of B. tabaci to avoid the undesirable side effects of chemical control in the form of residues on crops, continuing chemical resistance development and pest resurgence [9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Compatibility and Efficacy of the Parasitoid Eretmocerus hayati and the Entomopathogenic Fungus Cordyceps javanica for Biological Control of Whitefly Bemisia tabaci

Ren

Liu

et al. 2019

Insects

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Biological control is an effective method for whitefly management compared to the potential problems caused by chemical control, including environmental pollution and the development of resistance. Combined use of insect parasitoids and entomopathogenic fungi has shown high efficiency in Bemisia tabaci control. Here, we assessed the impacts of an entomopathogenic fungus, Cordyceps javanica, on the parasitism rate of a dominant whitefly parasitoid, Eretmocerus hayati, and for the first time also compared their separate and combined potential in the suppression of B. tabaci under semi-field conditions. Six conidial concentrations of C. javanica (1 × 103, 1 × 104, 1 × 105, 1 × 106, 1 × 107 and 1 × 108 conidia/mL) were used to assess its pathogenicity to the pupae and adults of E. hayati. Results showed that the mortality of E. hayati increased with higher concentrations of C. javanica, but these higher concentrations of fungus had low pathogenicity to both the E. hayati pupae (2.00–28.00% mortality) and adults (2.67–34.00% mortality) relative to their pathogenicity to B. tabaci nymphs (33.33–92.68%). Bioassay results indicated that C. javanica was harmless (LC50 = 3.91 × 1010) and slightly harmful (LC50 = 5.56 × 109) to the pupae and adults of E. hayati respectively on the basis of IOBC criteria, and that E. hayati could parasitize all nymphal instars of B. tabaci that were pretreated with C. javanica, with its rate of parasitism being highest on second-instar nymphs (62.03%). Interestingly, the parasitoids from second and third-instar B. tabaci nymphs infected with C. javanica had progeny with increased longevity and developmental periods. Moreover, experimental data from 15 day semi-field studies indicate that combined application of C. javanica and E. hayati suppresses B. tabaci with higher efficiency than individual applications of both agents. Therefore, combined applications of C. javanica (1 × 108 conidia/mL) and E. hayati is a more effective and compatible biological control strategy for management of B. tabaci than using either of them individually.

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Microbial biopesticides for insect pest management in India: Current status and future prospects

Cited by 122 publications

References 34 publications

Potential of Entomopathogenic Fungi as Biological Control Agents of Whitefly (Bemisia tabaci biotype B) (Genn.) (Hemiptera: Aleyrodidae)

Potential of Entomopathogenic Fungi as Biological Control Agents of Whitefly (Bemisia tabaci biotype B) (Genn.) (Hemiptera: Aleyrodidae)

Tropical Occurrence and Agricultural Importance of Beauveria bassiana and Metarhizium anisopliae

Compatibility and Efficacy of the Parasitoid Eretmocerus hayati and the Entomopathogenic Fungus Cordyceps javanica for Biological Control of Whitefly Bemisia tabaci

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