The early summer is the primary season for controlling the weeds in pastures and fields but the fall can also be a vital time to manage some specific weeds with herbicide in grass and pastures that have been mowed. Usually, the biennials, like common burdock and bull or musk thistles, are easy to control when they’re in prior stages of growth and during winter. But once these weeds are in full bloom, they grow fast and it becomes pretty much difficult to control.
Hence, September and October are good to use herbicides and pasture weed control. But make sure that the herbs are fleshy to absorb the herbicides. The temperature should be favourable also immediately before, during and after the application. Generally the warmer environment, the better with mid 50’s at a minimum in the daytime. Cold night or cool weather reduces the effectiveness.
Determine if the overstock feature is the reason of the problem or not. Adjust the grazing management scene to match the availability of the forage.
Recognize the problematic weeds and then the controlling measurement. You should decide the herbicides, the application rates as it varies according to the species and seasons. For many weeds, herbicide that has broad range and residual control mechanism is cost effective. For woody herbs or plants, opt for products labelled as brush control. Whereas some herbicides offer brush and weed control or you can mix to meet the desired control range. Target your weed species first and contact the professional applicator or chemical specialist for a particular product and application timing. You can also go for bobcat hire in Wallan if it is a large land.
It is crucial to spray the right amount at right time. Annual weeds with 2’’ length and rapid growth are more susceptible early during the season when soil moisture is enough. The lowest labelled application rate will be good enough at that time. Weeds which germinate after applying herbicides need a broad spectrum herbicide with higher labelled rates. Contact herbicides, like 2,4-D, are useful only in case of emerged weeds and not good for the ones which sprout after spraying. Always treat weeds when they are growing fast but make sure to apply before flowering and seed production. For advanced life stage, rates of the herbicides need to be increased.
Follow the instruction before mixing and spraying. For ground broadcasting, spray the recommended rate in 10-20 gallons of total mixture per acre and for brush; use 20 gallons per acre to ensure full coverage.
For drought affected or mature weeds, consider the mowing and not spraying. Weeds without proper moisture content and those which are not growing actively are actually difficult to control with such herbicides. Use herbicides with proper soil residual functionality wisely. These kinds of products should not be used on croplands. Many herbicide-applied grasses sometime retain its residue and it can be transferred to the rotated soil by livestock manure or hay. Kindly read all the precautionary measures and take it.