Effect of insecticide impregnated ear tags on horn fly populations and suckling calf performance

dc.citation.epage110en_US
dc.citation.spage108en_US
dc.contributor.authorSimms, D.
dc.contributor.authorWillman, T.
dc.contributor.authorSchalles, R.
dc.date.accessioned2010-12-14T19:34:11Z
dc.date.available2010-12-14T19:34:11Z
dc.date.issued2010-12-14
dc.date.published1984en_US
dc.description.abstractThree trials were conducted to determine the effect of insecticide impregnated ear tags on horn fly counts and weight gain of suckling calves. In trials 1 and 2, cow calf pairs on two Kansas ranches were assigned to these treatments: 1) Control - no tag, 2) Cows Only - 1 tag per cow, 3) Calf Only - 1 tag per calf, and 4) Cow and Calf - 1 tag each. Each tag treatment was in a separate pasture. All insecticide tag treatments reduced (P<.05) horn flies on cows and calves in July and August; however, by September the tags were only reducing (P<.05) flies on cows. While the weight gain response to tags was variable, when trials were combined, all tag treatments increased (P<.05) calf gains over controls. Using a single tag per cow was better (P<.05) than a single tag per calf, while tagging both the cow and calf was no better than either single tag treatment. Average fly counts for each pasture were negatively correlated with calf weight gains indicating a strong relationship between fly populations and calf performance. In trial 3, apparent horn fly resistance to the insecticide in the tags resulted in terminating the trial mid-summer. Research in Kansas and other states indicates that horn fly resistance to pyrethroid insecticides is becoming a common problem which means that producers may need to revert to previously used methods of horn fly control.en_US
dc.description.conferenceCattlemen's Day, 1984, Kansas State University, Manhattan, KS, March 2, 1984en_US
dc.identifier.urihttp://hdl.handle.net/2097/6918
dc.publisherKansas State University. Agricultural Experiment Station and Cooperative Extension Serviceen_US
dc.relation.isPartOfCattlemen's Day, 1984en_US
dc.relation.isPartOfKansas Agricultural Experiment Station contribution; no. 84-300-Sen_US
dc.relation.isPartOfReport of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 448en_US
dc.subjectBeefen_US
dc.subjectEar tagsen_US
dc.subjectInsecticideen_US
dc.subjectPerformanceen_US
dc.titleEffect of insecticide impregnated ear tags on horn fly populations and suckling calf performanceen_US
dc.typeConference paperen_US

Files

Original bundle

Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
cattle84pg108-110.pdf
Size:
245.8 KB
Format:
Adobe Portable Document Format

License bundle

Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.61 KB
Format:
Item-specific license agreed upon to submission
Description: