Mastercrop MCPA 50

Hygeia Chemicals
Registered until
Registration expired
Registration number
Active materials

Registration expiry date 31/12/2015

Product use illegal from 30/06/2017

A soluble concentrate containing 500 g/L MCPA as the dimethylamine salt. A selective herbicide for the control of many broad-leaved weeds in cereals and established grassland.

Always spray when the crop is actively growing

Use on established grassland and leys not less than 1 year old. Apply the product in spring and summer when growing conditions are favorable. Spray grass for hay or silage 3-4 weeks before cutting. Clover may be checked but recovers by the following Spring. Follow-up applications may also be needed where new seedling weeds appear. An interval of 4-6 weeks should elapse between successive applications if weeds persist
A top dressing ten days before treatment is recommended to assist kill of weeds and subsequent recovery of the sward. Annual weed species will be best controlled if spraying is done while the majority of weeds are seedlings. Perennial weeds should be sprayed during their period of maximum growth, usually when the flower buds are beginning to form. The response of perennial weeds to treatments are often variable with only the aerial parts killed, though often suppression will occur. The recovery of the weeds will be reduced if the grass is growing vigorously at the time of treatment Apply in 200 - 400 L water/ha.

The safe period for treatment occurs when the grasses have at least four leaves and have begun to tiller but at least five weeks preceding ear emergence. The best time varies according to the species and strain of grass concerned. Do not apply more than 2.7 L/ha of the product. Apply in 200 - 400 L water/ha

Half-fill the tank with clean water and add the required quantity of the product, and add the remainder of the clean water with gently agitation which should continue until the contents are thoroughly mixed. Triple rinse containers with water and add washing to the spray tank.

thoroughly immediately after use. Rinse with water three times, drain and allow to dry. Traces of herbicide left in the sprayer may damage susceptible crops if these are subsequently sprayed using the same equipment. COMPATIBILITY The product can be tank-mixed with other pesticides, please consult your distributor.

When herbicides with the same mode of action are used repeatedly over several years in the same field, selection of resistant biotypes can take place. These can propagate and may become dominating. A weed species is considered to be resistant to a herbicide if it survives a correctly applied treatment at the recommended dose. A strategy for preventing and managing such resistance should be adopted. This should include integrating herbicides with a programme of cultural control measures.

Registered for culturesRate
Grassland2.7 l
Pasture2.7 l