The effects of pre-planted marigold on tomato root-galling and multiplication of Meloidogyne incognita, M. javanica, M. arenaria, and M. hapla were studied. Marigold cultivars of Tagetes patula, T. erecta, T. signata, and a Tagetes hybrid all reduced galling and numbers of second-stage juveniles (J2) in subsequent tomato compared to the tomato-tomato control. All four Meloidogyne spp. reproduce...