Some sheep areas of Queensland may see falls of rain in the next few days, but parts of western New South Wales are not expecting to see much rain at all. As the weather, particularly rainfall, worms and pastures are closely linked, any sheep grazing on green grass need to be carefully monitored for parasites. In the temperate regions of the country, autumn has been dry and rather warm. Worm and fly activity has continued well into April.
The April fluke drench
‘After the first frost’ in April is said to be the best time to give the most important liver fluke drench of the year! Given that this autumn is warmer than expected, and frosts may be delayed, does this adage still hold true?
Lou Baskind, DV, Braidwood, NSW, provides some interesting commentary to assist with your decision making.
In the Riverina and south-east, where there have been good falls of rain, barber’s pole is expected to remain active into May. Black scour and brown stomach worm are active in the wetter, cooler more temperate regions. Monitor sheep for worms, liver fluke and fly, and treat as appropriate.
Autumn has been very dry and while worm counts remain generally low, stock are in poor condition and very susceptible to worm infection. WormTest to determine if an autumn drench is necessary. Barber's pole infections may increase in wetter coastal regions.