Motha grass (Cyperus rotundus) is a perennial narrow leaf weed. It is particularly difficult to control, as the rhizomes easily take root above ground and under soil. From these rhizomes it is broadcast rapidly. The rhizomes have a very dense root system, which can reach deep into the ground. It is rarely propagated by seed. For better crop production of maize, weed management is very necessary from time to time.
damage caused to crops
They absorb air, water, sunlight, fertilizers, nutrients etc. thereby competing with the main crop. Due to which the growth of maize is reduced and the plant remains weak, if it is not controlled in the initial stage, then 40 to 50% decline in yield can be seen.
Control measures
mechanical method : For good production from maize, first weeding in the crop, 15-20 days after sowing and second weeding 30-45 days after sowing is necessary.
Chemical method : For good control of motha, spray weedicide Sempra (Hallosulfuron methyl 75% wg) @ 36 gm + silico maxx @ 50 ml per acre, 150 – 200 liters of water at 2 to 3 leaf stage for better control of motha. Use a flat fan nozzle at the time of spraying and maintain moisture in the field.
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