Incidence of stalk rot [on corn] as influenced by weed control practice (Philippines).
1985
Bayacag T.C. | Exconde O.R.
The occurrence and severity of stalk rot were not significantly affected by different weed control practices studied. Plots subjected to off barring and hilling up operations gave slightly higher percentage infection and severity of stalk rot. Cultivation of the field injured and cut the roots of corn thus increased infection and spread of the disease. The population of the causal pathogen Erwinia carotovora var. chrysanthemi Dye in the field was not significantly affected by the different weed control practices employed, however, the inoculum density decreased as the plants mature. The reduction in yield due to stalk rot was higher from plots with off barring and hilling up operations compared to plots which were left undisturbed.
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