Life cycle and pathogenicity of Meloidogyne incognita on Fragaria vesca under Polyhouse and screen-house conditions in Haryana state

Abstract

The root-knot nematode is a serious problem in the cultivation under commercial polyhouse. To access the damage potential of the nematode, life cycle and pathogenicity of root-knot nematode was studied on strawberry in polyhouse as well as under screen house conditions. Nematode didn’t complete their life cycle neither under screen house conditions nor in polyhouse as only one disintegrated female was observed under polyhouse condition during last observation at 60th days. The pathogenicity of root-knot nematode at the different inoculum levels viz., 0, 10, 100, 1,000 and 10,000 J2 of Meloidogyne incognita /pot was studied and compared. The pathogenic level of root-knot nematode in strawberry was recorded at and above 1,000 J2 inoculum level under both the conditions where significant reduction in plant growth parameters was recorded.