Powered by Forecast (forecast.io) and the Met Office Datapoint
Each dot on the map represents a weather station. Click on the weather station closest to your holding for more detailed information and advice on how to protect your lambs - but read the information below on how this information relates to your holding.
Very High Risk
How does the SCOPS Nematodirus Forecast work?
The forecast predicts the hatch date for nematodirus based on temperature data from 140 weather stations throughout the UK and should be used in combination with your grazing history (more below) to assess the risk of nematodirus infection in your lambs. To use the forecast:-
Main risk factors
If your lambs are grazing pasture that carried lambs last spring and you answer yes to one or more of these questions, your lambs are at risk.
If possible, avoid infection. Move at-risk lambs (as determined by the risk assessment) to low risk pastures (i.e. pasture that was not grazed by lambs the previous spring).
If you cannot avoid high risk pasture grazed by lambs the previous spring and decide you need to treat for nematodirus, SCOPS advises farmers to use a white (1-BZ) drench. Use the SCOPS ‘Know Your Anthelmintics’ Guide to select a product. These are still highly effective against this parasite on most farms and suitable for young lambs. Check that treatment is effective by taking a FEC 10 days after treatment. Remember, it may be necessary to treat lambs more than once depending on the spread of ages in a group and subsequent weather conditions.
Nematodirosis is a particularly nasty disease in lambs, causing a high number of mortalities and stunting the growth of many others. It is caused by the Nematodirus battus worm, which has a different lifecycle to other sheep worms. Under certain climatic conditions it can strike very quickly, with little or no warning. The main difference in the lifecycle of Nematodirus battus compared with other parasitic worms is that development to infective larvae takes place within the egg and infection passes from one lamb crop to the next year’s crop. Cold weather delays hatching so when we get a sudden change in temperature it can trigger a mass hatch. If this coincides with the time when lambs are starting to take in significant amounts of grass (over about six weeks old), the result can be devastating.