Efficacy of Bioagents on Ceratocystis fimbriata and Meloidogyne incognita wiltComplex in Pomegranate

摘要

Seven bioagents viz., Trichoderma harzianum, T. viride, T. aspurulum, T. virens, T. koningii, Bacillus subtilis and Psuedomonas fluorescens were tested for their efficacy against Ceratocystis fimbriata and Meloidogyne incognita causing wilt complex inpomegranate. T. harzianum and T. viride recorded the maximum inhibition of the test fungus (100%), followed by T. aspurulum (93.33%), T, koningii (85.67%) and T. virens (84.33%) respectively. Mortality of M. incognita juveniles were tested with cultureextracts of seven bioagents at four concentrations viz., 25, 50, 75 and 100 percent. T. harzianum recorded maximum (72%) juvenile mortality at an exposure time of 120 hours followed by P. fluorescens (68.33%), T. viride (63.66%) and T. aspurulum (60.00%) at 100 percent concentration. Minimum juvenile mortality was recorded in T. koningii (38.66%) at 100 percent concentration at an exposure period of 120 hours.