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Queensland worms, flies and lice update - March 2018

Toowoomba: Peter Lynch, Veterinary Consultant, Livestock Veterinary Services (peterlynch@shwds.com.au)

Many areas of Queensland have received good rain in the last few weeks.  Some areas especially in the south west have missed out and we pray that they will get some soon before the end of the growing season.

The rain has been good for the sheep, and it is even better for the worm larvae to develop on pasture. If you have had rain, it is now more important than ever to check your faecal egg counts (WormTest). Short grass means that worm larvae have a greater chance of being eaten. If your worm burdens have been low due to the drought, the immunity of your sheep (to barber’s pole worms) could be lower than normal and hence your sheep would be susceptible to heavier than normal worm burdens. 

Please do a faecal worm egg count 4 to 6 weeks after the rain.

If you need to drench, remember to use a drench that is highly effective against barber’s pole worms. If you have not done a drench resistance test in the last few years, now is a good time to do one. Do a faecal egg count before drenching and repeat 10 to 14 days after drenching (DrenchCheck). More details are on the Wormboss website or talk to your veterinarian or egg count laboratory.