Report Detail Page
Analysis of 20 Drench Resistance Tests on 19 beef cattle farms in the Agricultural Regions of WA
A series of drench resistance tests in cattle using the macrocyclic lactones, benzimidazole and levamisole groups in southern WA are reported here. The tests have identified:
Resistance in Cooperia oncophora to ivermectin on 63% of farms tested.
Resistance in Ostertagia ostertagii to benzimdizole and levamisole on 50% and 63% respectively of farms tested.
Resistance in Cooperia oncophora to ivermectin using pour on application at Day 14 and Day 28 on 50% and 37.5% of farms respectively.
Resistance in Ostertagia ostertagii to ivermectin pour on at Day 14 and Day 28 on 20% and 37.5 % of farms.
This page was last updated on 24/07/2017
Join myMLA today
One username and password for key integrity and information Systems (LPA/NVD, NLIS, MSA & LDL).
A personalised online dashboard that provides news, weather, events and R&D tools relevant to you.
Customised market information and analysis.
Already registered for myMLA?