It was also report-ed that different resistances to the nematodes appeared in different rootstocks, Trifoliate or-ange (Poncirus trifoliata) is susceptible, but sour orange(Citrus aurantium)and tangerine(C. tangeyina) are rexistant.

• 不同砧木对根结线虫的抗性有差异，枳高度感病，酸橙和红桔较抗病。