Duplosan KV is a selective herbicide for post-emergence application to control growth of a wide range of broadleaved weeds in amenity grassland, grassland (seed crop) and managed amenity turf. Duplosan KV can be applied up to twice per year at a rate of 1.5-2.5 L/ha.
|Product Name||Duplosan KV|
|Active Substances||600 g/L Mecoprop-P|
|Areas of Use||Amenity grassland, grassland (seed crop) and managed amenity turf|
|Mode of Action Group||Group O: Synthetic auxins|
Active Ingredients: 600 g/L Mecoprop-P
MAPP no. 18374
Duplosan KV controls a wide range of broad-leaved weeds in turf and grassland including weeds that are commonly considered to be problematic (e.g. common chickweed, mouse ear, nettles, plantain and speedwells).
The active substance, Mecoprop-P, is most effective when weeds are young, between the cotyledon and two leaf stage. Because the active substance is relocated throughout the plant systemically Duplosan KV will affect both the roots and shoots of susceptible plants by disrupting growth processes. This results in the effective control of all susceptible broad leaved weeds.
Where to use:
When to use:
Apply to actively growing grass (normally between April to September) when the soil is warm and moist and will continue to be so for several days after application.
How to use:
|Crop||Maximum Treatments||Application Method||Application Rate||Water Volume||Spray Quality|
|Amenity Grassland||2 per annum||Mounted boom sprayer||2.4 L/ha||185-330 L/ha||Medium|
|Handheld sprayer||2.4 L/ha||480 L/ha (minimum)||Medium|
|Grassland (seed crop)||1 per annum||Mounted boom sprayer||1.5-2.5 L/ha||185-330 L/ha||Medium|
|Managed Amenity Turf||2 per annum||Mounted boom sprayer||1.5-2.4 L/ha||185-400 L/ha||Medium|
|Handheld sprayer||1.5-2.4 L/ha||480 L/ha (minimum)||Medium|
Bio-Chemical Mode of Action: Mecoprop-P belongs to the synthetic auxins group of herbicides. Synthetic auxins work by inducing rapid abnormal cell growth and development in the stems, petioles and leaves of susceptible plants causing cell bursts and ultimately cell and plant death.
Mobility: Mecoprop-P is a systemic penetrant which means that the active substance can be translocated downwards through the plant within the phloem (sugar conducting tissues) and upwards through the plant within the xylem (water conducting tissues).
Application Timing: Systemic auxins are best applied when the weeds are actively growing. They are generally more effective when target plants are younger and in their vegetative phases.
Resistance: The incidences of resistance to synthetic auxins remains relatively low which is assumed to be because the herbicide has multiple sites of action.
However, resistance to synthetic auxins has been observed globally with 36 species being confirmed as resistant as of 2017. Best management practices, such as alternating with products with a different mode of action and using cultural weed control methods, will help to reduce the risk of further resistance.
For further information on Duplosan KV Herbicide, please contact a member of our technical team on +44 (0)1902 440250.