Weed Control in Forest and Grassland
To know the control of specific weeds observed in non-cropped areas.
I) Weeds of Forest: Woody Plant Species:
Control:
1. Cutting
2. Burning
3. Bulldozing
4. Use of rollers
5. Mowers discs
6. Chemicals
7. Managed grazing
8. Insects etc.
Ester formations of 2.4-D are most effective to control woody species. Other herbicides effective are (i) Formations of 2.4,5-T, 2.4-DB, MCPB and Silvex (ii) Amitrol (iii) Ammate (iv) Fenuran pallets.
II) Weeds in Grass Lands:
Shrubby and herbaceous weeds grow in grass land. There weeds are competitive and harmful to grass growth due to mismanagement of grassland.
Control:
a. Controlled and deformed grazing.
b. Proper fertilization.
c. Appropriate gap filling.
d. Soil and water conservation etc. are used to keep the weeds suppressed.
Physical Weed Control in Grasslands:
Burning, mowing, hand grazing controlled grasing grubling etc.
Biological Weed Control:
In grassland prickly pear (Opunting spp) in Australia has been successfully controlled.
Herbicidal Control in Grasslands:
a. Removal of weeds from grasslands and
b. Remove them to grow more nutritive species that are present.
c. Herbicides control weeds efficiently non – residual herbicides like paraquat and MSMA are successfully use to kill total vegetation and to plant seeds of desired grasses and legumes.