Evaluation of Preplant Seed Protectants for the Management of Root-Knot Nematode of Okra in Ghana

Table 5

Percent reduction in nematode populations (University of Ghana farm).

Treatment	Initial nematode count	Final nematode count	Reproductive factor (RF)	Percentage reduction in nematode population (%)
T1	310.0	41.0	0.1	80.0b
T2	184.0	40.0	0.2	70.8b
T3	128.0	46.0	0.4	67.0b
T4	319.0	80.0	0.3	76.6b
T5	203.0	63.0	0.3	68.8b
T6	153.0	25.0	0.2	77.4b
T7	605.0	104.0	0.2	75.8b
T8	67.0	19.0	0.3	70.9b
T9	370.0	327.0	0.9	21.0a

T1 = sesame at 40% as seed coating for 30 min prior to sowing; T2 = sesame at 40% as drenching two weeks after germination; T3 = neem at 50% as seed coating for 30 min prior to sowing; T4 = neem at 50% as drenching two weeks after germination; T5 = citrus at 100% as seed coating for 30 min prior to sowing; T6 = citrus at 100% as drenching two weeks after germination; T7 = velum (check) at 3.8 ml/1L as seed coating for 30 min prior to sowing; T8 = velum (check) at 9.8 ml/15L of water as drenching two weeks after germination; T9 = control (no application).