The rugose spiraling whitefly arrived in Florida in 2009 in Miami-Dade County and is found today from the Florida Keys through Palm Beach County. As it spreads, it leaves a honeydew-like film on pools that can neutralize chemicals. The whitefly also deposits a black goo on decks, furniture and railings. Whiteflies will cover the top of pools.
Two types of whiteflies are responsible for the problem: the ficus whitefly, which has been around for quite some time, and the rugose spiraling whitefly, a species that’s relatively new in the area. The spiraling whitefly, unlike the ficus whitefly, is not super-picky about what it feeds on and reproduces on. So it’s got a very wide host range. One of its favorite hosts is the coconut palm, which is often planted in close proximity to pools.
The last two years the whiteflies have been a very big problem and are getting worse each year. We would put large amounts of chorine in the pool and the chlorine reading is high one day and the next day there will be a zero chlorine reading. The best solution, of course, is to eliminate the whitefly by removing the insects from the trees with a pest control treatments. If you do not have a pest control company we can recommend one for you. After the trees are treated we need to do an enzyme treatment to the water so we can keep chlorine in the pool.