The invention provides a composition comprising as active ingredients:(A) a nematicidally effective amount of abamectin； and (B) a fungicidallyeffectiveamount of: (B1) mefenoxam (B2) fludioxonil； and (B3) azoxystrobin； (C) afungicidallyeffective amount of myclobutanil； and (D) an insecticidally effective amountofthiamethoxam； wherein the ratio of active ingredients (A):(B1):(B2):(B3) is(100-400g):(7-10g):(2-5g):(15-20g) per 100kg of seed. The composition isuseful fortreating plant propagation material such as seeds and protecting it againstattack bynematodes and phytopathogenic fungi. Such treatment of plant propagationmaterialis also useful for improving plant stand establishment of a crop of plantsresultingfrom the seeds.
