to be particularly effective in inhibiting the mycelial
growth of fusarium in vitro, and an inhibition zone of
1.4 cm was recorded (Table 1). The population growth
ofT. harzianumTh-10 was very high on dried banana
leaf (4.6×10
32
cfu/g material) followed by banana
pseudostem (2×10
21
cfu/g) and rice chaffy grains
(8×10
15
cfu/g) (Fig. 1). Addition of jaggery to the
dried banana leaves increased the population growth
ofT. harzianumTh-10 even at 1% (4×10
31
cfu/g)
compared to control (1.9×10
5
cfu/g), 5 and 10% concentrations being not significantly higher.
Survival of T. harzianum was studied during
a 6-month storage. The initial population of T.
harzianumTh-10 was 30×10
32
cfu/g dried banana
leaf and 13×10
10
cfu/g of talc. In both substrates, the
population ofT. harzianumTh-10 was maintained at
the same level for 1 month of storage and declined
gradually afterward. After 6 months, the population
had declined to 4×10
15
cfu/g in dried banana leaves
and to 1.1×10
2
cfu/g in talc-based formulation.T.
harzianummultiplied in dried banana leaf increased
rapidly with time in all soils tested. When applied as
dried banana leaf formulationT. harzianumTh-10
increased from 10
4
to a maximum of 10
13
cfu/g of
soil after 60 days. Talc-based formulations of T.
harzianumincreased less rapidly (Table 2).
Soil application of dried banana leaf formulation of T. harzianum Th-10 provided 49.9%, the
talc formulation 40.1%, the fungicide treatment only
to be particularly effective in inhibiting the mycelialgrowth of fusarium in vitro, and an inhibition zone of1.4 cm was recorded (Table 1). The population growthofT. harzianumTh-10 was very high on dried bananaleaf (4.6×1032cfu/g material) followed by bananapseudostem (2×1021cfu/g) and rice chaffy grains(8×1015cfu/g) (Fig. 1). Addition of jaggery to thedried banana leaves increased the population growthofT. harzianumTh-10 even at 1% (4×1031cfu/g)compared to control (1.9×105cfu/g), 5 and 10% concentrations being not significantly higher.Survival of T. harzianum was studied duringa 6-month storage. The initial population of T.harzianumTh-10 was 30×1032cfu/g dried bananaleaf and 13×1010cfu/g of talc. In both substrates, thepopulation ofT. harzianumTh-10 was maintained atthe same level for 1 month of storage and declinedgradually afterward. After 6 months, the populationhad declined to 4×1015cfu/g in dried banana leavesand to 1.1×102cfu/g in talc-based formulation.T.harzianummultiplied in dried banana leaf increasedrapidly with time in all soils tested. When applied asdried banana leaf formulationT. harzianumTh-10increased from 104to a maximum of 1013cfu/g ofsoil after 60 days. Talc-based formulations of T.harzianumincreased less rapidly (Table 2).Soil application of dried banana leaf formulation of T. harzianum Th-10 provided 49.9%, thetalc formulation 40.1%, the fungicide treatment only
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