Population fluctuation of meloidogyne incognita infecting cucumber in poly-house

Population fluctuations of root-knot nematode, Meloidogyne incognita during crop season were studied on cucumber in two poly-houses of different locations. For the observations plant and soil samples were taken at fifteen days intervals throughout the crop season up to 120 days. Results showed that lowest 2.60 and highest 74.00 galls/5g roots of cucumber found at 15 and 120 days after sowing. No egg masses observed just 15 days after sowing of crops due to root-knot nematode complete their entire life cycle within 25 to 30 days.