Table 2.

A report about the genus of the predominant bacteria in Dryocosmus kuriphilus, Torymus sinensis, D. kuriphilus galls and the galled twigs of Castanea mollissima.

Genus of Predominant Bacteria	Reported in T. sinensis	Reported in Galling Insects	Reported in D. kuriphilus galls	Reported in C. mollissima
TorS group
Massilia	No	Leptocybe invasa (Liu et al., 2021)	No	No
Ralstonia	No		No	No
Pseudomonas	No	D. kuriphilus (Iskender et al., 2017), L. invasa (Liu et al., 2021), Gall midges (Bansal et al., 2014; Ojha et al., 2017), Gall aphids (Medina et al., 2011; Wu et al., 2018), Galling sawflies (Michell and Nyman, 2021), Thrips (Hammer et al., 2021)	No	No
Dryk group
Serratia	No	Gall wasps (Liu et al., 2021), Gall aphids (Amit et al., 2017; Medina et al., 2011; Wu et al., 2018), psyllids (Morrow et al., 2017)	No	Chen et al., 2019
Pseudomonas	No	D. kuriphilus (Iskender et al., 2017), L. invasa (Liu et al., 2021), Gall midges (Bansal et al., 2014; Ojha et al., 2017), Gall aphids (Medina et al., 2011; Wu et al., 2018), Galling sawflies (Michell and Nyman, 2021), Thrips (Hammer et al., 2021)	No	Ni, 1998;
InsG group			No
Pantoea	No	L. invasa (Liu et al., 2021), Gall midges (Bansal et al., 2014; Ojha et al., 2017), Thrips (Hammer et al., 2021)	No	Zhang et al., 2019
Rhodococcus	No	Gall aphids (Wu et al., 2018)	No	No
CasM group
Sphingomonas	No	L. invasa (Guo et al., 2020), Galling sawflies (Michell and Nyman, 2021), Gall aphids (Wu et al., 2018)	No	Chen et al., 2019