Biological control of Meloidogyne spp. in glasshouse-grown chrysanthemum

Root-knot nematodes ( spp.) are a major problem in soil-based glasshouse-grown chrysanthemums. To combat root-knot nematodes in the glasshouse, the soil is typically steamed every 5–6 production cycles. However, this method is expensive, environmentally unfriendly and reduces resistance and resilien...

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Bibliographic Details
Published in:	Journal of nematology Vol. 52; no. 1; pp. 1 - 12
Main Authors:	De Long, J. R., Streminska, M. A., Persijn, A., Huisman, H. M. I., van der Salm, C.
Format:	Journal Article
Language:	English
Published:	United States Sciendo 01-01-2020 Exeley Inc
Subjects:	Arts & Humanities Biological control Biostimulant Chrysanthemum Glasshouse Host-parasitic relationship Meloidogyne Resistance Root-knot nematode Sustainable horticulture Resistance Host-parasitic relationship Root-knot nematode Glasshouse Chrysanthemum Biological control Meloidogyne Sustainable horticulture Biostimulant
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Summary:	Root-knot nematodes ( spp.) are a major problem in soil-based glasshouse-grown chrysanthemums. To combat root-knot nematodes in the glasshouse, the soil is typically steamed every 5–6 production cycles. However, this method is expensive, environmentally unfriendly and reduces resistance and resilience of the soil against pathogens and pests. Here, we added biological pesticides/a basic substance and biostimulants both individually and in combination to determine individual or interactive effects against damage by root-knot nematodes in chrysanthemums. We found that the application of biological nematicides derived from garlic extract, the basic substance chitosan HCl and biostimulants comprised of sea minerals and plant oils correlated with reduced root-knot nematode damage. These effects may have been due to direct effects against the nematodes or through indirect effects such as increased resistance and resilience of the plants. Overall, the biostimulants increased the total number of free-living nematodes in the soil, which could lead to a beneficial increase in nutrient cycling in the soils. Our results demonstrate that biological reagents show promise in reducing root-knot nematode damage in glasshouse-grown chrysanthemum and may lead to more resistance and resilient soils.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 This paper was edited by Shaun D. Berry.
ISSN:	0022-300X 2640-396X 2640-396X
DOI:	10.21307/jofnem-2020-125