Pasteuria penetrans (Pp) is a mycelial and endospore forming bacterium parasitising root-knot nematodes (Meloidogyne spp.), with potential as a biocontrol agent. It is stored either in the form of ground dried roots containing infected females, or water suspensions deriving from crushed infected females. For its transportation between laboratories the dried root material and the liquid formulation may be blocked by posting regulations. Water suspensions containing Pp spores (Pp3 and Pp blend) were left to dry and remained dried for 2 or 12 months. After hydration, juveniles of M. incognita and M. javanica were exposed in Petri dishes containing spores of Pp blend and Pp3 respectively, either hydrated after the drying period or kept continuously in water suspension (control) and the number of attached spores recorded after 24 h incubation. Spore encumbered juveniles of M. incognita were inoculated on pepper and of M. javanica on tomato. The plants grew for 50 days in a growth room and afterwards the number of egg masses per root was recorded. Females without egg masses that were suspected to be infected were checked for the presence of spores inside. Both spores dried for 2 or 12 months and then hydrated and spores kept continuously wet, attached on juveniles at similar rates, and had a similar efficacy in reducing the number of egg masses and infection rate of females. Therefore, a dried water suspension of Pp can overcome posting restrictions and can be safely used for further multiplication of the parasite.