0 November 2021 Pitch Diaries

After mild October temperatures and a number of days filled with sunlight, which has been good for grass growth, we end October with a period of wet, dingy, cool weather, which sees us transition from the tail end of summer and autumn into the winter period.

Looking ahead, November is forecast to be a month of mixed weather, with the usual rainfall for this time of year but also some clear days too. The temperatures are set to start the month in the low teens and then shift towards the back end of the month to high single figures. Any clear nights at this point potentially introducing some morning frosts with the low night-time temperatures.

As days become gloomier and nights become longer, the obvious result of this is a decrease in the amount of opportunity the grass plant has to photosynthesise. Less photosynthesis in conjunction with a decrease in temperature means less growth and recovery. The mild start to the month should mean a gradual decrease in soil temperatures rather than a sharp drop off, which will mean growth decreases steadily, meaning that mowing and other practices will still be required. Whilst this is happening, it gives the turf manager opportunity to apply products to promote any recovery needed and improve plant health. As shade and damp environments become more of the norm, it plays straight into the hands of mosses, algae and fungal diseases. One of the main fungal diseases through this period in the UK is still Microdochium nivale (Fusarium patch).

Predicting when these disease outbreaks may occur is challenging. Understanding what contributes to disease pressure and completes the disease triangle on your own site allows better informed decisions when selecting and timing applications aimed at counteracting disease pressure. These may be fungicides, nutrition or plant response applications. Previous applications may have already been made as part of a disease prevention strategy or an autumn IPM programme which is being followed. It is important to ensure, where possible, that active ingredients are being rotated to avoid any resistance establishing with the pathogen.

In this month's diaries we focus on the importance of label recommendations in relation to application rates and growth potential advice. Plus water management/wetting agents, leatherjackets and worms.

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Don't forget, you can also use our Pitchcare Forum, where members can ask for and offer advice on the whole range of sports turf surfaces issues.

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