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Using pre-emergence herbicides in wet conditions

The current wet conditions mean slow progress for cereal drilling, with some areas of the UK more severely affected than others. Naturally, such delays are having a subsequent impact on pre-emergence herbicide plans and timings.

The wet weather may mean you're unable to travel on fields, or that your seedbeds cannot receive a herbicide treatment. Even if you can get crops in the ground, imminent rain reduces the chance of applying pre-emergence herbicides within 48 hours of drilling - the optimum timing for grassweed control. 

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The future of oat weed control

This autumn, oat growers across the UK face new crop management considerations following the news that the pre-emergence herbicide, Liberator (flufenacet + diflufenican), can no longer be used on the crop.

The change comes after oats were newly categorised as a 'major crop' by the Chemicals Regulation Division (CRD), meaning all Extensions of Authorisation for Minor Uses (EAMUs) have now been revoked. This leaves growers with no residual herbicide options apart from Sempra XL, though this can only be used on oat crops which are being grown for seed.

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Preparing oilseed rape for harvest

Harvest is just around the corner for oilseed rape and there are some final but important tasks required now that the crop has reached this point in its life cycle. Across the country, many oilseed rape crops have been looking well but this means that careful consideration is required when planning desiccation and necessary steps should be taken to safeguard crop potential.

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Grassweed series: Stubble management for grassweed control

Last month we published the first in our series of blogs on grassweed management, looking specifically at black-grass, its characteristics and the strategies to take pre-harvest. You can read the blog here.

As with management before harvest, efforts to control grassweeds are crucial post-harvest too. Cultivation strategies during this time can have a significant impact on the overall grassweed burden for the following crop, but it is important to understand the biology of the individual species in order to use cultural options to the best effect. 

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