Issac, here is my view. I have a misting system that covers all my pens, as does a good friend of mine. In April 2012, we had an outbreak of EHD/ Bluetongue. Necropsy at Texas AM identified the virus as EHD 2. Both my fellow deerfarmer and myself lost over 50% of our herd. Yes, they were all vaccinated with the EHD vaccine. My friend even bought and tried the $500 injection treatment sold out of Texas with minimal success. After these heavy losses we have learned a few things.
1) sooner or later EHD/ Bluetongue will visit your farm
2.) Misting systems are effective but cannot keep up in an epidemic.
3) The vaccine is unproven and unreliable
4.) The $500 per deer treatment is unproven and unreliable
5.) Some deer die within 12 hours of showing symptoms and other deer survive with and without medications.
6.) All teatments we tried ,and we tried alot of different medications between both farms showed no pattern of success.
7.) The epidemic stopped after it went thru both herds.
8.) We installed cattle rubs soaked in diesel and premethrin.
9.) We bought and used a fogger that fogs a residual insecticide that we can apply to our property and spray across to the neighbors tree line.
Conclusion:
A misting system is better than nothing ( it only kills midges when it contacts them and does not have a residual efficacy). We observed midges on deer at 3 pm in the afternoon, so the dawn , dusk and midnite spraying had little effect on the midges at 3 pm. ,
The misting system and fogger are better than just the misting system because the fogger can reach parts of the pens that the misting system can not reach and has a residual (20 day) insect killing lifespan.
A cattle rub, misting system and fogger is the best possible intergrated approach to help decrease the midge fly infestation.
I have learned way to much about this virus in the last 60 days!!!!
If any of you have any questions about this discussion and EHD/ bluetongue you can PM me or call me at 337-322-2727