Wednesday, 2 May 2018

Nematodirus risk forecast 2018

The gutworm Nematodirus battus, a roundworm that causes diarrhoea in young lambs between 6 and 12 weeks of age, can cause mortalities and stunt the growth of many lambs during the spring and summer months.

Eggs are deposited on pasture by lambs the previous year and hatch the following spring. Cold weather delays hatching so when we get a sudden change in temperature it can trigger a mass hatch. The changeable temperatures that we are currently experiencing in the UK can make predicting when Nematodirus eggs are going to hatch into infective larvae very difficult.

To help producers to plan preventative treatment, SCOPS (Sustainable Control of Parasites in Sheep) has launched its Nematodirus risk forecast for 2018 which predicts the hatch date for Nematodirus based on temperature data from 140 weather stations throughout the UK. Sheep farmers, vets and advisers can use this invaluable tool to assess the local risk of the parasite.

An interactive map with a traffic light system of warnings will be updated daily this spring and summer, alongside practical advice. Find out the risk forecast for your area by visiting the SCOPS website.


More information on worm control can be found in our manual Worm control in sheep for Better Returns