Thursday, April 20, 2017

Reducing Worm Larvae With Liquid N

As it is well-known, barber pole larvae show increased resistance to commercial anthelmintics drenched to small ruminant livestock, and producers are looking for other alternatives. What about bypassing the livestock entirely and applying a larvicidal product directly on the pasture itself?  Laboratory studies we conducted at North Carolina State University showed that 96.6% L3 barber pole larvae were not moving or dead when immersed in solutions of liquid nitrogen fertilizer.  

So, could we pop two balloons with one dart by fertilizing pastures with liquid nitrogen fertilizer to promote forage growth and at the same time reducing pasture nematode larvae population, their subsequent ingestion by grazing animals and ultimately reducing gastrointestinal parasite loads? North Carolina State University conducted three experiments to test this hypothesis on predominantly tall fescue pastures.

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