Victoria worms, flies and lice update - June 2017

Hamilton: Andrew Whale, Livestock Logic (
Livestock Logic Recommendations

Seasonal conditions continue to favour lower worm burdens.
Egg counts remain relatively stable across all classes of stock.
Worm burdens are strongly influenced by nutrition, and well fed sheep in good condition are better able to handle worm burdens.

The last 3-4 months in the south west of Victoria have been phenomenal after a very early break with great follow up rain, and while it was bordering on too wet in early May, we have had a relatively dry June, which has been ideal for stock. Anyone who has lambed early should see great results at lamb marking as feed on offer couldn’t be better for this time of year, and the weather has been kind.
Many crossbred ewes joined to terminal rams will be lambing in July and August, and conditions look ideal for these sheep with good feed levels and paddocks relatively dry. Egg counts for all classes of sheep have been relatively low, which is a reflection of the feed levels in paddocks. The spring-like pastures are without a doubt reducing larval intake levels due to the dilution effect of such large quantities of pasture in paddocks. The graph below shows that whilst drenching levels are slightly above those of last year, they are nowhere near the level we thought they would be after such a long spring and early break this year.