Treat with an effective drench[1] and move to a paddock as 'worm-free' as possible and continue to check closely for signs of worms[2]. In 4—6 weeks if the summer drench was due, treat with an effective drench[1]; if not due, WormTest and treat if average worm egg count exceeds 200 epg.

• Poorer condition sheep (average less than Condition Score 2.5): treat now with an effective drench[1] and WormTest in 4—6 weeks time.
• Moderate/good condition sheep (average Condition Score 2.5 or more): WormTest now and drench if average worm egg count exceeds 200 epg, then WormTest in a further 4—6 weeks.

WormTest now rather than drench (as 'hypersensitivity' to worm larvae will not respond to drenching). Treat with an effective drench[1] if average worm egg count exceeds 200 epg.

• If deaths have occurred, discuss with a veterinarian immediately. If this is not possible, both WormTest (request a barber's pole worm test) and treat with an effective drench[1] immediately, then seek advice.
• If deaths have not occurred, WormTest now with a barber's pole worm test. Treat with an effective drench[1] if average egg count exceeds 500 epg, then WormTest again in 4—6 weeks[2].
• If results show barber's pole worm is not the likely cause of anaemia and the problem persists, seek veterinary advice.

No treatment is required now if lambs are developing normally and putting on weight (if not seek veterinary advice). Treat at weaning with an effective drench[1].

Treat at weaning with an effective drench[1] and move to a paddock as 'worm-free' as possible and continue to check closely for signs of worms[2]. In 4—6 weeks if the summer drench was due, treat with an effective drench[1]; if not due, WormTest and treat if the worm egg count exceeds 200 epg.

Treat with an effective summer drench[1] and move to (or leave on) a dry pasture or crop stubble. If no drench resistance test results are current WormTest 10—14 days after the drench to check for complete worm removal.

WormTest at approximately 6-week intervals, starting 6 weeks after the autumn break, until late spring. Treat with an effective drench[1] if average egg count exceeds 300 epg (or a different threshold as agreed with your animal health advisor).

Treat rams with an effective drench[1] prior to joining, OR WormTest and treat if average egg count exceeds 100 epg.

Treat sheep with an effective drench[1] between the last week of March and mid-April, OR If in good condition (average Condition Score 2.5 or more), WormTest, then treat with an effective drench[1] if average egg count exceeds 200 epg. (Ewes: review the Drench Decision Guide again 3 weeks prior to lambing or if there are signs of worms[2]).

No drench is recommended, as worm burdens will be low after the autumn treatment. Review this Drench Decision Guide in late spring or if there are signs of worms[1].

WormTest 3 weeks before lambing starts and treat with an effective drench[1] if average worm egg count exceeds 200 epg. Review this Drench Decision Guide in late spring or if there are signs of worms[2].

WormTest rams and wethers after there has been green feed for 6 weeks; treat with an effective drench[1] if egg count exceeds 300 epg. Review this Drench Decision Guide in late spring or if there are signs of worms[2].

WormTest poorer condition sheep now (average Condition Score less than 2.5) and treat with an effective drench[1] if the average worm egg count is over 200 epg. Otherwise, continue checking for signs of worms[2] and WormTest if concerned.

Treat with an effective drench[1] and move to a paddock as 'worm-free' as possible and continue to monitor visually (if scouring persists 5 days after drenching seek veterinary advice). WormTest again in 4—6 weeks.

• Poorer condition sheep (average less than Condition Score 2.5): treat now with an effective drench[1].
• Moderate/good condition sheep (average Condition Score 2.5 or more): WormTest now and drench if average worm egg count exceeds 200 epg. After, continue checking for signs of worms[2] and WormTest if concerned.

Treat at weaning with an effective drench[1] and move to a paddock as 'worm-free' as possible. Continue checking for signs of worms[2] and WormTest if lambs are not growing to expectation.

Continue checking for signs of worms[1] from summer through to next spring and WormTest if concerned.

Continue checking for signs of worms[1] from autumn through spring and WormTest if sheep are losing condition.

Note: WormTests at key times (ewes: pre-lambing; other sheep: winter or spring) will establish an annual pattern and indicate whether routine treatments are necessary.