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Download The New Corteva Arable App

Download the new Corteva Arable App which includes a host of information on the Corteva product range for cereals and potatoes along with the latest agronomy advice.  Click here

 

 

Drought Taking Its Toll on Spring Crops

If your spring crop is struggling for nutrients due to drought, Cereal Plus High N will give it the boost it needs to keep growing.  For more information click here…

 

Zypar – The Cornerstone of Spring Barley Weed Control

Zypar brings unrivalled control of difficult to control weeds such as fumitory, chickweed, fat hen & cleavers. Discover more …..

 

Corteva Grassland Update – May 2020


Latest grassland update from the experts at Corteva Agriscience…..

 

 

 

Weed Control Essential For Quality Silage

Docks

As thoughts turn to silage, treating dock-ridden leys with Doxstar Pro four weeks before cutting will significantly increase the amount of grass that ends up in the clamp and improve silage quality. Docks have much less feed value than grass and pull down dry matter. Forefront T is the most effective herbicide available to grassland farmers for the control of docks, ragwort, chickweed, thistles, dandelions, nettles and buttercups. It is the longest lasting weed control product in grassland to date with a single well-timed spray giving up to 18 months control so whilst it may appear expensive it really is good value for money. Forefront T may only be applied to grazing ground. Once the established docks have been controlled it is best to keep the problem under control with follow-up treatments every year. This controls new growth of seedling docks that will reappear because all that is required for dormant seeds to germinate is a gap in the sward caused by poaching or tractor marks.

In fertile soils, the dock root system consists of a large tap root with a highly branched mass of smaller fibrous roots. This means what appears to be a small dock plant above ground may in fact be growing from a large rooting system below ground. In order to achieve effective herbicide application docks should be at the rosette stage, with foliage8-10 inches high or across. If grass has been cut or grazed a period of three weeks must occur to allow sufficient regrowth and a suitable target for spraying. If applying Forefront T, Doxstar Pro or Pas.Tor, livestock should be kept out of treated areas for 7 days before grazing and until the foliage of any poisonous weeds has died and become unpalatable. Where clover is important Squire Ultra may be applied in established grass.

Chickweed

There are 2 types of chickweed, common chickweed which has a smooth leaf and is the most commonly found, and mouse-eared chickweed which has a larger leaf than common, with a very hairy surface on the leaf & stem. Chickweed levels have built up very quickly this spring as this weed grows at lower temperatures than grass, and should be treated as soon as possible to avoid choking out the young grass. Similarly, established swards that have been poached by autumn grazing tend to be very open in the early spring and this allows chickweed a chance to become a problem. Chickweed can mature and produce seed in 5-6 weeks hence there can be several generations in a year. Mouse-eared chickweed is very common on many local farms and it is important to note the distinct differences and treatments. Both Envy and Leystar will be used widely on new sown leys this season where clover is not important. As well as controlling both strains of chickweed it will give very good control of dock and thistle.

 

 

 

 

 

Where clover is part of the mixture then a clover safe product must be used. Triad is an SU type herbicide that is safe to clover when used correctly. As well as controlling a wide range of BLW’s Triad gives excellent control on chickweed. It will also control seedling docks (not those regrowing from roots), but has no effect on thistles or buttercup. Add Spruce to bring in control of these weeds.

It is extremely difficult to achieve satisfactory control once weeds get beyond the seedling (young plant) stage. Clover content of the sward needs to be higher than is often appreciated. As a rule of thumb there should be 10 plants per square metre at the start of the season. Where plant populations are below this level it is more important to focus on other aspects and be prepared to treat the field as a grass only crop. High levels of nitrogen will significantly reduce clover growth, but by reducing nitrogen inputs overall forage yield will be reduced.

 

 

Revysol – The Revylution is Here

Click here to find out more about the revylutionary new fungicide from Basf

 
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