BoomerangPlant Protection Product ComparisonPlant Protection Product ComparisonReport inaccuraciesReport inaccuracies

A suspension concentrate containing 100 g/l (8.7 % w/w) quinmerac and 400 g/litre (34.8 % w/w) metazachlor.

A residual herbicide for the control of a range of broad-leaved and grass weeds, including cleavers, in winter oilseed rape.

 

Consult Processors before use.

 

Herbicidal activity is dependent upon root uptake.

 

Weed:Black-grass

Rate: Apply 2.2-2.5 litres/hectare Boomerang.

Critical Comments: Pre-emergence category-Susceptible;  Maximum susceptible stage post-emergence- Pre-emergence of weed;

 

Weed: Chickweed, Common 

Rate: Apply 2.2-2.5 litres/hectare Boomerang

Pre-emergence category- Susceptible; Maximum susceptible stage post-emergence-Cotyledon;

 

Weed: Cleavers

Rate: Apply 2.2-2.5 litres/hectare Boomerang

Pre-emergence category-Susceptible;  Maximum susceptible stage post-emergence-2 whorls;

 

Weed: Cranesbill, Cut-leaved

Rate: Apply 2.2-2.5 litres/hectare Boomerang

Pre-emergence category-Moderately Resistan;  

 

Weed:Dead-nettle, Red

Rate:Apply 2.2-2.5 litres/hectare Boomerang

Pre-emergence category-Susceptible;  Maximum susceptible stage post-emergence-Cotyledon MS;

 

Weed:Forget-me-not, Field

Rate:Apply 2.2-2.5 litres/hectare Boomerang.

Pre-emergence category- Susceptible; Maximum susceptible stage post-emergence-Pre-emergence of weed;

 

Weed:Fumitory, Common

Rate:Apply 2.2-2.5 litres/hectare Boomerang.

Pre-emergence category-Moderately Susceptible;  

 

Weed:Groundsel

Rate:Apply 2.2-2.5 litres/hectare Boomerang.

Pre-emergence category-Susceptible; Maximum susceptible stage post-emergence-Pre-emergence of weed;

 

Weed:Knotgrass

Rate:Apply 2.2-2.5 litres/hectare Boomerang.

Pre-emergence category-Resistant;  

 

Weed:Mayweed spp

Rate:Apply 2.2-2.5 litres/hectare Boomerang.

Pre-emergence category-Susceptible; Maximum susceptible stage post-emergence-4 lvs.

 

Weed:Meadowgrass, Annua

Rate:Apply 2.2-2.5 litres/hectare Boomerang.

Pre-emergence category-Susceptible;  Maximum susceptible stage post-emergence-Pre-emergence of weed;

 

Weed:Pansy, Field

Rate:Apply 2.2-2.5 litres/hectare Boomerang.

Pre-emergence category- Moderately Susceptible.

 

Weed:Parsley, Fool‘s

Rate:Apply 2.2-2.5 litres/hectare Boomerang.

Pre-emergence category- Susceptible,

 

Weed:Parsley Piert

Rate:Apply 2.2-2.5 litres/hectare Boomerang.

Pre-emergence category-Susceptible;  Maximum susceptible stage post-emergence-Pre-emergence of weed;

 

Weed:Penny-cress, Field

Rate:Apply 2.2-2.5 litres/hectare Boomerang.

Pre-emergence category-  Resistant;

 

Weed:Poppy, Common

Rate:Apply 2.2-2.5 litres/hectare Boomerang.

Pre-emergence category-Susceptible; Maximum susceptible stage post-emergence-2 lvs.

 

Weed:Shepherd‘s-purse

Rate:Apply 2.2-2.5 litres/hectare Boomerang.

Pre-emergence category-Susceptible; Maximum susceptible stage post-emergence-Pre-emergence of weed;.

 

Weed:Sowthistle, Perennial 

Rate:Apply 2.2-2.5 litres/hectare Boomerang.

Pre-emergence category-Susceptible; Maximum susceptible stage post-emergence-Cotyledon - 1 leaf.

 

Weed:Speedwell, Common field

Rate:Apply 2.2-2.5 litres/hectare Boomerang.

Pre-emergence category-Susceptible; Maximum susceptible stage post-emergence-2 lvs.

 

End of January in the year of harvest

 Other specific restrictions:

A maximum total dose of not more than 1000 g metazachlor/hectare may be applied in a three-year period on the same field.

 

Strains of some annual grasses (e.g. black-grass, wild-oats, and Italian rye-grass) have developed resistance to herbicides which may lead to poor control. A strategy for preventing and managing such resistance should be adopted. Guidelines have been produced by the Weed Resistance Action Group and copies are available from the HGCA, CPA, your distributor, crop adviser or product manufacturer.

 

Boomerang can be used on all varieties of winter-sown oilseed rape.

Boomerang may be applied pre- or post-emergence of the crop but for maximum activity application must be pre-emergence of the weeds.

Pre-crop emergence applications should be made on medium and heavy soils only (as defined by the ADAS Soil Texture (85) system). Application should be made before the crop seed chits, which in warm moist soils may occur within 48 hours of drilling. Seedbeds should be moist, firm and free from clods, but also see Restrictions/Warnings section. DO NOT USE ON BROADCAST CROPS. DO NOT USE Boomerang pre-crop emergence when any of the following conditions apply:

When heavy rain is forecast;

Dry cloddy seedbeds;

Late drilled crops - as a guide these are crops drilled later than the first week in September in Northern England and Scotland and later than mid September in the rest of the UK.;

Stony soils, i.e. stones, flints or chalk, readily visible on the soil surface.

Post-crop emergence applications can be made on light, medium and heavy soils (as defined by the ADAS Soil Texture (85) system). Application can be made from when the majority of the crop has two fully expanded cotyledons until before the end of January. The soil should be moist at application, or rainfall must occur shortly after application, but also see Restrictions/Warnings section.

Seedbed conditions are not ideal for pre-emergence use;

The seed is not covered with 15 mm of soil (as with broadcast crops;
Boomerang could not be applied before the seed chits;

Light soils, or all recommended soils which are stony, brashy or gravelly, are to be treated particularly if heavy rainfall has been forecast for the period following drilling;

Late drilled crops are to be treated

 

Any crop can follow normally harvested winter oilseed rape treated with Boomerang. Ploughing is not essential before sowing a following cereal crop, but is required for other crops.

In the event of crop failure in the autumn or winter, then only the crops listed below can be drilled after the use of Boomerang:

Re-drilling the following spring – spring barley and potatoes may be sown after ploughing.

 

Apply 2.5 litres/hectare Boomerang.

Apply as a MEDIUM spray, as defined by BCPC.

Boomerang should be applied in a minimum water volume of 220 litres/ hectare.

Do not use filters finer than 50 mesh.

SHAKE WELL BEFORE USE.

Half fill the spray tank with clean water and start the agitation.

Pour in the required amount of Boomerang.

Add the remainder of the water and continue agitation until spraying is completed.

Rinse empty containers thoroughly and add rinsings to the spray tank.

Do not overlap spray swaths, particularly on headlands.

Avoid spray drift onto neighbouring crops.

WASH EQUIPMENT thoroughly immediately after use.

Fill the tank with clean water and leave overnight.

Spray out before storage or using other products.

Traces of the product may cause damage to susceptible crops sprayed later.