Interaction between Meloidogyne enterolobii and Helicotylenchus dihysteroides in guava seedlings

In order to evaluate the effect of joint infection by Meloidogyne enterolobii and Helicotylenchus\uddihysteroides on vegetative growth of guava seedlings (Psidium guajava L.), as well as to observe symptoms caused\udby pathogens in host plants, an experiment was conducted in microplots. In these experimental units, suspensions\udwere used containing H. dihysteroides and M. enterolobii. The plants were separately inoculated with H. dihysteroides\udand jointly inoculated with H. dihysteroides and M. enterolobii, and the blank controls were represented by noninoculated\udplants. No significant differences were observed between treatments related to morpho-physiological\udvariables of guava seedlings, but joint inoculation resulted in a reduced final population of H. dihysteroides. It was\udalso concluded that neither infection by H. dihysteroides alone nor a joint infection by the two pathogens caused\udany damage to guava seedlings