Common name - Bajiri/Maha maruk
Botanical name - Fimbristylis miliacea
Family - Poaceae
Life cycle - Annual
Morphology
- Annual, erect, tufted or reclining at base; up to 200 cm tall.
- Stem: culms rooting at lower nodes, cylindrical, without hairs, and filled with white spongy pith.
- Leaf: linear with a broad round base and narrow top; blade 10 - 40 cm - long; ligule absent.
- Inflorescence: loose green to purplish, 10 - 25 cm long comprising compound racemes; spikelets more or less elliptical and pointed, usually slightly hairy; awns, if present, green to purplish, 2 - 5 mm long
Propagation
- By seed
Agricultural usage/ importance
- A serious weed of lowland rice due to its rapid growth, competitive ability, and capacity to multiply rapidly
Control method
- Thorough land preparation for rice under wet or dry conditions can reduce infestations
- Difficult to distinguish the weed seedlings from rice at early stages, which makes hand weeding difficult
- Biological control: the fungal pathogen Exserohilum monoceras shown to control this weed
- Chemical control: Oxadiazon, pretilachlor, pendimethalin or cyhalofop, thiobencarb, butachlor, and propanil mixtures with quinclorac or fenoxaprop
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