Danny
Posted : 4/6/2006 2:45:52 PM
Hello [

]
Let me tell you, you are having quite some problem on your hand there. What you seem to have is a reinfestation cycle, where your dogs acquired the worm somewhere, then spread the eggs with their feces in the yard. Now, as you deworm them, they reinfect themselves with their own deposits there. Treating the lawn is not a very good road to go for a variety of reasons. The egg is quite resistant to that sort of stuff, and the only real weakness it has is heat and sunlight. As you live in VA, having your lawn cut REAL short during a real hot week in summer, will go a long way to at least reduce their numbers. Alternatively you could apply a layer of new soil or pave over the yard. [

] (joking aside, there is no effective method to kill whipworm eggs in the soil) Also, you should remove all feces you can find in the yard (some eggs will have washed into the ground by now however), and you should continue to do that. The things you should do with your dogs, from my perspective, are the following: 1. fence the lawn; make sure no other dogs do enter that ground 2. de-worm your dogs 3. prevent reinfestation for the time being (the eggs can survive for up to five years [&:]) with a low-level wormer, for instance by daily administration of 'filaribits plus' (that medication is specifically made to be used daily to prevent reinfestations).
The very best option: de-worm and move to a new lawn. [

]
Good luck!