“…Studies on induced resistance to nematodes have tended to appear more frequently over the last few years, investigating elicitors and a range of phytonematodes that attack various crops (Silva et al, 2004;Fabry et al, 2007;Franzener et al, 2007;Salgado et al, 2007;Dias-Arieira et al, 2012). In studies on induced resistance, there are no restrictions, regarding annual or perennial crops, but some factors must be taken into consideration, including the nature of the interaction of the specific pathosystem, the genetics of the host plant, and the need to boost defense mechanisms if the inducing agent has only a temporary effect (Salgado et al, 2007).…”