The stem and bulb nematode, Ditylenchus dipsaci, is a plant parasite that causes significant economic losses to growers of the main host plant, onion. Fungal mycorrhizae can increase growth induce systemic resistance against many diseases pests. However, no evidence detailed study was found regarding relationship with D. dipsaci. In this study, effects fungus, Rhizophagus irregularis, on onion ...