Currently mosquito populations are moderate with most biting activity in the late afternoon and early evening hours. Dry weather continues to keep floodwater species at bay. These floodwater mosquitoes are species that will be daytime, as well as nighttime feeders. Things can change quickly should a substantial rain or tidal event occur. Also, for those people living near rice agricultural areas, flooding of fields could spur some activity.
Weather continues to hamper control operations. Persistent high winds have plagued our area since early spring with no sign of letting-up. Anytime winds stay at or above 10mph spray activities cease. It is not unusual to have these type of winds during the day, but we seem to be experiencing these conditions in the evening as well. We hope these conditions change soon allowing us to provide effective control strategies.
Disease surveillance has been ongoing for a couple of months. Diseases such as West Nile virus, St. Louis Encephalitis and Eastern Equine Encephalitis will be monitored. Last year there were no human cases of mosquito-borne disease, but there were 3 horse cases: 2 with West Nile and 1 with Eastern Equine Encephalitis. By early May, virus activity has been seen in mosquito pools from several areas of the parish. This has been somewhat surprising considering how early it is in the year. Historically, virus activity has not been found until late June – early July.
Most mosquito control operations in the state are reporting the same type activity. In fact, a couple of programs in the south central and eastern part of the state have isolated virus activity since January. What this means is not known. However, even with the activity found to date, there has been only 1 reported human infection and that was found through the screening of blood from a blood donor. All we do know is that there is virus ongoing virus activity circulating in nature, and it be an active season once the primary time for virus transmission arrives, which is July through October.
Also, if you have horses now is the time to get them vaccinated against West Nile Virus and Eastern Equine Encephalitis. The vaccines are very effective and will pay for themselves in the long run. Consider that animals are outdoors both day and night and constantly exposed to mosquitoes. They have little they can do for themselves to ward off mosquitoes. So talk with your veterinarian and provide these animals some lasting protection.
Realize that it is important that everyone do their part in reducing mosquito occurrence around their home or business. Look for anything that can hold water and eliminate it. This could be an old tire, bucket, appliance, can, boat or just whatever. Items where water is desired (like flower pot reservoirs, bird baths and pet dishes) should be flushed every 4-5 days to keep mosquitoes from hatching. Roof gutters should be cleaned to assure proper drainage. Low areas should be drained or filled so as not to allow water to stand.
Personal protection is also important. If you are out and about, especially during the peak mosquito activity periods (early morning and evening hours) keep exposed skin to a minimum and wear clothing light in color. Avoid fragrant smelling perfumes and colognes, as these could actually be an added attractant. Have repellents and space sprays available and use as needed. Always read the entire label of any product before using to assure it’s safe and proper use.
It looks as if it is going to be a long and busy mosquito season. Should you have a mosquito problem or would like more information on mosquitoes and their control, please feel free to give us a call at 721-3780.
