Friday, 22 June 2012
Pre Planting Weed Control Part 2
Methods of Weed Control
Weed control efforts in a christmas tree plantation begin with site preparation activities. Repeated disking or rotovating of the site destroys many weed species. Some chemicals, such as Roundup, may also be used in site preparation activities. Many growers use a combination of mechanical and chemical control because once the weeds are controlled by mechanical methods, herbicides work well to keep the vegetation from becoming a problem during the remainder of the rotation. Some preplant herbicides can also be effective, following site preparation, especially if the vegetation to be controlled is primarily annual weeds (since they kill germinating seeds and not roots capable of reproduction
Trees have little chance of doing well if they are planted in established vegetation on a site which has not been properly prepared. Alternatives to completely tilling a site maybe to strip disk the area where the trees are to be planted. A nonselective, non-residual herbicide applied in bands 4 feet wide or in circles 4 feet in diameter where the trees are to be planted is another alternative.
Complete eradication of all weeds is generally unnecessary as light vegetative cover
Weed control is an important factor in producing quality christmas trees. between rows, if kept under control, prevents erosion and does minimum damage to trees.
It is important to remember that vegetation control is more Important around newly planted young trees than around older trees. It is also important to control weed competition while the trees are actively growing, during this time competition for water and nutrients is most critical.
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