Syngenta UK
Farminguk
30 August 2016 | Online since 2003
OvoConcept


10 March 2013 08:36:18 |Arable,Crops and Cereals,News

The spray window is still wide open for Galera


Galera - just in time

Galera - just in time

Longer days will stimulate oilseed rape crops to start growing and growers and advisors will need to time their Galera applications carefully under this year’s challenging conditions.
"We are seeing a lot more sow-thistles in rape, especially in min-till or no-till crops, on light soils, where crops have been drilled in wide rows or in open less competitive crops. Changes in establishment methods appear to have encouraged more sow-thistles. These weeds grow through the crop and present a large amount of biomass at harvest.
"Even if you desiccate there is so much bulk to kill off. Whatever population of sow-thistles you have, they need to be dealt with effectively," says David Roberts of Dow AgroSciences.
He also considers cleavers to be a potential problem this spring.
"Cleavers are a competitive broad-leaved weed in oilseed rape, reducing both yield and oil content. Its seeds will also contaminate the end sample, leading to admixture penalties. Cleavers cause serious and costly harvesting problems by mature plants clambering up and over the crop canopy – thistles and mayweeds do the same. These damaging weeds are all well controlled by Galera."
"For consistent and reliable performance, weeds should be small and actively growing and the soil temperature is 6ºC and rising. Galera should be applied at 0.35 l/ha and it can be applied from the 4 leaf stage of the crop up to the point just before flower buds are visible above the crop canopy – this cut off is usually at the end of March or beginning of April and is rapidly approaching. This year the variable crops we are seeing will mean that each field will need assessing individually, both for weeds and to ensure the correct timing."
David explains that the flower buds visible above the crop canopy is an indication of the physiological growth stage of the plant.
"Selectivity is not mediated by physical shielding of the flower buds by leaves. We have carried out trials in Germany where we artificially removed the leaves (with a strimmer), then compared selectivity with adjacent plots that hadn’t been strimmed. There was no crop damage from either treatment."
"Many backward crops will benefit from an herbicide this spring, but care should be taken when assessing crop growth stage and making recommendations, with crop growth cut-off stage top of mind. Farmers and agronomists should be particularly sensitive to signs of stem extension.
"Some crops have lost a lot of leaf over the winter and open less competitive crops will inevitably carry higher levels of weeds. The spray window may be quite narrow, but you can expect excellent weed control and crop safety on all rape varieties when applied correctly at the right time. Stretching the spray window can result in crop damage that may have an adverse effect on pod and seed set," says David.
With regard to weed size, Galera will control mayweeds and cleavers up to 150 mm in size, sow-thistles and creeping thistles up to 4 leaves or 50 mm in size and groundsel up to 6 leaves.
Galera (267 g/L of clopyralid and 67 g/L of picloram formulated as a solution concentrate) is recommended post-emergence in all varieties of winter oilseed rape for the control of broad-leaved weeds including cleavers, scented mayweed, scentless mayweed, sow-thistles, creeping thistles and groundsel.
It can be applied from the 4 leaf stage of the crop up until before flower buds are visible above the crop canopy. It is recommended at a dose rate of 0.35 l/ha and is compatible with a wide range of graminicides, insecticides and fungicides. It is packed in a 1 litre container.

Download

0 Comment

loginuserlogo
Name

Please enter your name


Email

Please enter your email

Please enter valid email


Comment

Please enter your comment


Post Comment

Your comment has been submitted successfully. Please wait for admin approval.


Comments

No comments posted yet. Be the first to post a comment


Canada | 26 August 2016
Canadian beef exports to EU in limbo over E. coli dispute

If differences of opinion over food safety practices are not resolved, the big promises of a new European market for Canadian beef may be a pipe dream. The Comprehensive Economic and Trade Agreemen...


India | 26 August 2016
GM mustard clears hurdle in India but more remain

A government panel has cleared commercial use of what would be India's first genetically modified (GM) food crop, but politicians still have to give final approvals amid wide-spread public opposition....


USA | 26 August 2016
USDA buys $20 million in cheese from dairy farms

Moving to bolster dairy farmers who are struggling to cope with price declines, the Agriculture Department announced Tuesday it is spending $20 million - on 11 million pounds of cheese. A taxpayer ...


France | 26 August 2016
Lactalis talks with French milk producers end with no deal

A meeting between Europe's largest dairy group Lactalis and French milk producers requesting a rise in prices ended in a deadlock after 10 hours of negotiations, sources close to the talks said. ...


USA | 26 August 2016
California farmers turn to sewers for water

California's prolonged drought is forcing Central Valley farmers to scramble for water to irrigate crops. They have to be creative. One agency is even turning to a sewage plant to meet demand. Just...



Trending Now

Viewed
Discussed


Top stories you may have missed
FarmingUK
FarmingUK Logo

FarmingUK

A new survey has revealed that the vast majority of British consumers belie...


FarmingUK
FarmingUK Logo

FarmingUK

The British public are overwhelmingly in favour of keeping or strengthening...


FarmingUK
FarmingUK Logo

FarmingUK

The sustained recovery of pig prices since the spring has come at a time wh...


FarmingUK
FarmingUK Logo

FarmingUK

A World Trade Organisation (WTO) panel has declared the Russian import ban ...


FarmingUK
FarmingUK Logo

FarmingUK

A new study has linked oilseed rape crops grown from neonicotinoid-treated ...


FarmingUK
FarmingUK Logo

FarmingUK

Philip Hammond is to guarantee billions of pounds of UK government investme...


FarmingUK
FarmingUK Logo

FarmingUK

Access to the foreign labour market is 'critical', according the chief exec...


FarmingUK
FarmingUK Logo

FarmingUK

The Tenant Farmers Association has said the National Trust's vision for a p...


FarmingUK
FarmingUK Logo

FarmingUK

Ulster farmers will 'not lie down and wave the white flag' when Brexit nego...


FarmingUK
FarmingUK Logo

FarmingUK

The cost of rural crime to the UK economy costs £42.5 million a year, accor...


closeicon
Username
Password