Bio controlling two pathogens of chickpea Fusarium solani and Fusarium oxysporum by different combinations of Trichoderma harzianum, Trichoderma asperellum and Trichoderma virens under field condition
Keywords:
Fusarium solani, Fusarium oxysporum, Trichoderma, biocontrol, chickpea.Abstract
The capability of Trichoderma (T.) harzianum (T1), T. asperellum (T2) and T. virens (T3) as bio control
agents for two pathogens of chickpea roots, Fusarium solani and Fusarium oxysporum were evaluated
alone or in combination under field and greenhouse conditions. Chickpea planted in artificial soil infested
with pathogens F. solani and F. oxysporum were treated with T1, T2, T3, T1+T2, T1+T3, T2+T3, T1+T2+T3.
Our results indicated that the best biocontrol treatment occurred in groups infested with F. solani and
treated with T1+T2+T3 (84%), followed by groups exposed to F. oxysporum with the same treatment (83%).
The least effective group was roots infested with both Fusarium spp. and treated with T. virens (T3). It is
concluded that although all bio control agents that were applied individually reduced disease incidence,
synthetic treatments showed a more protective effect as a biocontrol for chickpea fields exposed to F.
solani and F. oxysporum under greenhouse condition.
