|
- Thorough puddling, proper levelling and
irrigation
management control germination
and growth of weeds.
- Working with rotary weeder (push hoe)
in line
planting rice at 20,30 and 40 days of
crop growth.
- Manual weeding (common practice) in random
planting rice at 20 and 30 days after transplanting.
- Manual weeding is costly and also due
to non-availability of labor now-a-days,other methods of weed control
gaining importance.
Biological Control of Weeds
 |
- Certain insects and microbes feed on weeds and
contributing to the weed control.
- Some of the examples where the weeds are
controlled through biological method are furnished below.
|
| Weed
Species |
Natural
Enemies |
| Cyperus rotundus |
Athesapenta cyperi (Rhizome and stem
boring weevil),
Bactra minima (Tertric stem borer),
Bactra venesoma. |
Salvinia molesta
(Water fern) |
Grasshoppers
Paulinia acuminata |
Hydrilla, Chara
(Water fern) |
White armur, Tilapia (Fishes). |
|
Control Measures
