Non-pathogenic Fusarium oxysporum endophytes provide field control of nematodes, improving yield of banana (Musa sp.)

Waweru, Bancy; Losenge, Turoop; Kahangi, E. M.; Coyne, Daniel; Dubois, Thomas

doi:10.1016/j.biocontrol.2014.04.002

Cited by 86 publications

(45 citation statements)

References 23 publications

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“…Omnivores-predators are most sensitive to environmental disturbances resulting from changes in land use, which are higher in a natural land than in a disturbed agricultural land (Viketoft et al, 2011). Plant parasites attack many field crops and cause serious economical damage (Waweru et al, 2014). Higher population density and diversified structure of nematode communities should be widely used as a powerful ecological tool to assess soil condition as they respond to changes in the soil environment.…”

Section: Introductionmentioning

confidence: 99%

Response of soil nematode community composition and diversity to different crop rotations and tillage in the tropics

Zhong

Zeng

Jin

2016

Applied Soil Ecology

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Section: Introductionmentioning

confidence: 99%

Response of soil nematode community composition and diversity to different crop rotations and tillage in the tropics

Zhong

Zeng

Jin

2016

Applied Soil Ecology

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“…Furthermore, roots of tissue-cultured plantlets are more susceptible to early nematode infection than the thicker roots of sucker-derived plants (Waele et al, 1998;Stoffelen et al, 2000). The use of endophytes to protect tissue-cultured plants and reduce nematode damage has been documented in China (Su et al, 2017), East Africa (Waweru et al, 2014) and Costa Rica (Sikora et al, 2008), although commercial use is still limited, especially for smallholders.…”

Section: Practices To Reduce the Risk Of Infection And Eliminate The mentioning

confidence: 99%

Seed degeneration of banana planting materials: strategies for improved farmer access to healthy seed

et al. 2018

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Vegetatively propagated crops suffer from yield loss and reduced stand density and longevity caused by the build‐up of certain pests and pathogens between successive plantings via infected planting material. Here, six seedborne phytosanitary problems of banana are reviewed to evaluate whether a seed degeneration framework is a useful tool to identify approaches to achieve healthier planting materials. Phytoparasitic nematodes and weevils generate gradual declines in yields and in sucker health. Fusarium wilt and banana bunchy top virus cause progressive mat collapse across the field. Symptomless suckers from any mat in infested fields represent a risk of transmitting the disease to a new field. Xanthomonas and ralstonia wilts, due to incomplete systemicity, are intermediate in their threat to yield loss and frequency of transmission in suckers. Losses to banana streak virus are triggered by abiotic stress, although sucker transmission of episomal banana streak virus also contributes. A qualitative equation described here for seed degeneration covers a cycle beginning with the quality and risk factors of the planting material used to plant a new field and ends with the quality and risk factors of the suckers extracted from the field to plant a new field. This review of five planting material multiplication methods commonly used in banana contrasts their differing usefulness to address seed degeneration in the small farm context. It is proposed that initiatives to offset banana seed degeneration should integrate the role of off‐farm actors into decentralized initiatives rather than attempt to duplicate national seed certification frameworks from other true seed or vegetatively propagated crops.

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“…Banana black weevil (BW), Cosmopolites sordidus (Coleoptera: Curculionidae) is the key pest of banana plant crops [1][2][3][4]. BW causes more damage to banana crops than any other arthropod pest.…”

Section: Introductionmentioning

confidence: 99%

Volatile organic compounds from entomopathogenic and nematophagous fungi, repel banana black weevil (Cosmopolites sordidus)

Lozano-Soria

Picciotti

López-Moya

et al. 2020

Preprint

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AbstractFungal Volatile Organic Compounds (VOCs) repel banana black weevil (BW), Cosmopolites sordidus (Germar, 1824), the key-pest of banana (Musa spp.). The entomopathogens Beauveria bassiana (Bb1TS11) and Metarhizium robertsii (Mr4TS04) were isolated from banana plantation soils using an insect bait. Bb1TS11 and Mr4TS04 were pathogenic to BW adults. Bb1TS11, Bb203 (from infected palm weevils), Mr4TS04 and the nematophagous fungus Pochonia clamydosporia (Pc123), were tested for VOCs production. VOCs were identified by Gas Chromatography/Mass Spectrometry - Solid-Phase Micro Extraction (GC/MS-SPME). GC/MS-SPME identified a total of 97 VOCs in all strains tested. Seven VOCs (C1 – C7) were selected for their abundance or previous record as insect repellents. BW starved adults in the dark showed the highest mobility to banana corm in olfactometry bioassays. C7, produced by all fungal strains, is the best BW repellent (p<0.05), followed by C5. The rest of VOCs have a milder repellency to BW. C1 and C2 (known to repel palm weevil) block the attraction of banana corm and BW pheromone to BW adults in bioassays. Therefore, VOCs from biocontrol fungi can be used in future studies for biomanagement of BW in the field.

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Non-pathogenic Fusarium oxysporum endophytes provide field control of nematodes, improving yield of banana (Musa sp.)

Cited by 86 publications

References 23 publications

Response of soil nematode community composition and diversity to different crop rotations and tillage in the tropics

Response of soil nematode community composition and diversity to different crop rotations and tillage in the tropics

Seed degeneration of banana planting materials: strategies for improved farmer access to healthy seed

Volatile organic compounds from entomopathogenic and nematophagous fungi, repel banana black weevil (Cosmopolites sordidus)

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