Finger Millet or Ragi (Eleusine coracana Gaertn.) Diseases and Their Management Strategies

Kumar, Bijendra; Srivastava, J. N.

doi:10.1201/9780429321849-11

Cited by 2 publications

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“…Fischer and Leger 11 suggested that due to its dense architecture, the plant could sustain a high population of banker prey. It grows slowly however, reaching maturity after 3–6 months 28,29 . Corn was also stated as resistant, lasting 3 months under greenhouse conditions and feeding of banker prey, 16 while reaching maturity in approximately 3 months 30 .…”

Section: Introductionmentioning

confidence: 99%

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The right banker plant for the right application: Comparison of three candidates for aphid biocontrol, barley (Hordeum vulgareL.), corn (Zea maysL.), and finger millet (Eleusine coracana (L.) Gaertn)

Fauteux,

Fournier,

Soares

et al. 2024

Pest Management Science

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BACKGROUNDIn temperate regions, aphid biological control in greenhouses is mostly achieved by the regular release of biocontrol agents. Due to the rapid growth rate of the aphid population, biocontrol agents must be released frequently in order to be present before pest outbreaks and to act rapidly to prevent exceeding the economic threshold. Banker plants reduce these numerous releases by providing natural enemies with a high‐quality environment to develop and reproduce. Optimally, banker plants should be easy to produce, resistant to environmental conditions, provide a large amount of suitable alternative prey in order to produce a high number of biocontrol agents, and resist the herbivory pressure of the alternative prey. The present study aimed to compare the value of three banker plant candidates of the Poaceae family under laboratory and greenhouse conditions: barley (Hordeum vulgare L.), finger millet (Eleusine coracana (L.) Gaertn), and corn (Zea mays L.).RESULTSOur results show that the three plants were suitable for different contexts. Finger millet yielded the biggest fresh plant biomass, supported the highest load of banker prey, and longer resisted aphid feeding than the other plant species. Corn was the cheapest to produce, and barley was the fastest to grow.CONCLUSIONSOverall, finger millet could be more fitted for long crop cycles, pests with rapid population growth rates, and voracious or fast‐reproducing biocontrol agents. Meanwhile, barley and corn may be better suited for rapid crop cycles, pests with slow population growth rates, and biocontrol agents that are not too voracious or have low reproductive rates.This article is protected by copyright. All rights reserved.

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Section: Introductionmentioning

confidence: 99%

“…It grows slowly however, reaching maturity after 3-6 months. 28,29 Corn was also stated as resistant, lasting 3 months under greenhouse conditions and feeding of banker prey, 16 while reaching maturity in approximately 3 months. 30 Barley is fastgrowing, reaching the two-leaf stage (aimed for banker plant use) in only 3 weeks.…”

Section: Introductionmentioning

confidence: 99%

The right banker plant for the right application: Comparison of three candidates for aphid biocontrol, barley (Hordeum vulgareL.), corn (Zea maysL.), and finger millet (Eleusine coracana (L.) Gaertn)

Fauteux,

Fournier,

Soares

et al. 2024

Pest Management Science

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“…Different strains of Magnaporthe sp. cause blast disease, and economic losses in several cereal crops including rice and finger millet (Kumar & Srivastava, 2020, Seneviratne et al, 2004. Although local statistics are not available, on a global scale blast causes 30% (Nalley et al, 2016) and 28-36 % (Nagaraja et al, 2007) crop losses in rice and in finger millet respectively.…”

Section: Introductionmentioning

confidence: 99%

A case report on Blast disease in Rice and Finger millet in Sri Lanka

Dissanayaka,

Pabasara,

Gajanayake

et al. 2024

Ceylon J. Sci.

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Blast disease caused by Magnaporthe sp. is one of the most destructive diseases in cereal crops. Disease infection was studied in farmer fields. Field data was recorded and further information was gathered by interviewing the farmers and agrarian extension officers. Blast infections were assessed in the fields using a standard evaluation system for rice (SES IRRI, 1996). Although symptoms were not observed in seedlings when mature rice fields were infected farmers experienced 100% yield loss. There were no or few leaf symptoms in blast infected mature rice fields yet neck infections were scored as 9 in SES. Unlike rice, leaf blast at seedling stage caused economic losses in finger millet. Mature finger millet fields were susceptible to neck and finger blast. Due to rapid disease development curative fungicide treatment was ineffective in controlling blast. Farmers reported sudden changes in the weather during infections whereby gloomy weather caused a spike in humidity and low temperatures that coincided with the infection. Host susceptibility window synchronized with conducive environments result in severe blast infections therefore, blast disease management needs a coordinated effort and system level interventions whereby control measures and use of resistant germplasm can be combined with climate-based disease predictions to increase the efficiency of disease control.

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Finger Millet or Ragi (Eleusine coracana Gaertn.) Diseases and Their Management Strategies

Cited by 2 publications

References 0 publications

The right banker plant for the right application: Comparison of three candidates for aphid biocontrol, barley (Hordeum vulgareL.), corn (Zea maysL.), and finger millet (Eleusine coracana (L.) Gaertn)

The right banker plant for the right application: Comparison of three candidates for aphid biocontrol, barley (Hordeum vulgareL.), corn (Zea maysL.), and finger millet (Eleusine coracana (L.) Gaertn)

A case report on Blast disease in Rice and Finger millet in Sri Lanka

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