@article{fdi:010092823, title = {{S}oil fauna in agroforestry contributes to the suppressiveness to plant-parasitic nematodes : a case study in a {M}editerranean area}, author = {{M}asson, {A}. {S}. and {B}outon, {F}. and {B}ellafiore, {S}t{\'e}phane and {A}ribi, {J}amel and {M}arsden, {C}. and {H}edde, {M}. and {T}rap, {J}ean}, editor = {}, language = {{ENG}}, abstract = {{P}lant-parasitic nematodes are known to impair plant development and can cause severe crop loss. {A}groforestry is a promising land use management system for the preservation of soil fertility and biodiversity conservation, but very few studies have focused on the regulation of plant-parasitic nematodes with the inclusion of tree alleys in cropping systems. {I}n this study, the capacity of the soil to suppress plant-parasitic nematodes was assessed in {S}outhern {F}rance. {F}resh and heated soils from different combinations of land use (monospecific crop, agroforestry or tree plantation) and plant cover (crop or tree) were tested for their capacity to suppress {M}eloidogyne javanica in a laboratory assay. {I}n the samples taken under tree cover, the suppressive capacity of fresh soils was improved compared to that of the monospecific crop samples. {A}s the suppressive capacity of the heated soils remained low, we considered that soil fauna was responsible for part of the soil suppressiveness. {T}he characterization of nematode communities revealed no {M}eloidogyne spp. on the experimental site, but other plant-parasitic nematodes were found. {T}he total density of {P}ratylenchus spp. was lower while the relative density of {H}elicotylenchus spp. was higher under tree cover, compared with the monospecific crop soils. {I}n agroforestry, the relative density of herbivores was ca 200 % higher under tree cover compared to under crop cover but the parasitic pressure (assessed by the {P}lant-{P}arasitic {I}ndex/{M}aturity {I}ndex ratio) was ca 30 % lower. {M}oreover, the crop soils had the highest {E}nrichment {I}ndex while the tree row soils in agroforestry had the highest {S}tructural {I}ndex. {T}he suppressive capacity in agroforestry was associated with a specific nematofauna, including more predatory taxa than in the monospecific crop. {T}his study showed that including trees in a cropping system in a {M}editerranean area created a favorable niche for potential herbivore regulators among the soil fauna. {F}urther investigations are required to validate the regulation of plant-parasitic nematodes, and to disentangle the complex interactions explaining it in agroforestry.}, keywords = {{A}groforestry ; {S}outhern {F}rance ; {S}uppressive capacity ; {M}eloidogyne javanica ; {S}oil fauna ; {A}lley-cropping system ; {FRANCE} ; {ZONE} {TROPICALE}}, booktitle = {}, journal = {{A}pplied {S}oil {E}cology}, volume = {208}, numero = {}, pages = {105962 [12 p.]}, ISSN = {0929-1393}, year = {2025}, DOI = {10.1016/j.apsoil.2025.105962}, URL = {https://www.documentation.ird.fr/hor/fdi:010092823}, }