Bioefficacy of Bacterimycin-2000, a plant immunomodulator in the control of Bacterial Leaf Blight (BLB) in rice
Article in Pestology 25(11): 1-10 November 2001
K.V.B.R.Tilak
K.Udaiyan
The efficacy of Bacterimycin 2000, a commercial plant immunomodulator formulation, based on Di-bromo, Di-nitro, Propane 1,3, Diol, was evaluated against bacterial leaf blight (BLB) in rice at three locations during 1996 in Tamil Nadu.
The treatments involving chemical molecules recorded a significantly low Percent Disease Index (PDI), high Percent Disease Control (PDC), besides a significant increase in yield. Bacterimycin 2000 at the rate of 4 grams/10 litres of water (T3) recorded maximum disease control (as PDI & PDC), followed by Bacterimycin-2000 - 3 grams/10 litres (T2) and Streptomycin sulphate - 3 grams/10 litres (T1) in all the three locations.
A significant enhancement in the level of biochemical correlates was also observed in the treatment groups. The abiotic factors such as temperature, rainfall and relative humidity were observed to be related positively with the PDI. Usage of Bacterimycin 2000 as an important molecule in the control of BLB in rice was also discussed.
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