How do I get rid of White Flies in tropical climate?

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  • Molly Anmar Molly Anmar on Dec 18, 2017
    Insecticides are the primary method used to control whiteflies.

    Soil-applied systemic treatments with products that contain dinotefuran (Greenlight Tree & Shrub Insect Control) usually provide effective, long-lasting control of whiteflies. Treat whitefly-prone gardenias with dinotefuran in mid to late spring, and you probably will not have a whitefly problem for the remainder of the year.

    Products containing acetamiprid (Ortho Flower, Fruit, and Vegetable Insect Killer) work well against whiteflies when applied as a foliar spray. This is a good treatment to use on potted plants, like tropical hibiscus, that develop whitefly infestations.

    Choose whitefly treatments carefully; spraying with ineffective treatments will make the problem worse. Especially avoid spraying with malathion, carbaryl (Sevin), or pyrethroid insecticides (permethrin, cyfluthrin, bifenthrin, cyhalothirn, etc.). A few other general insecticides, aerosols, and soaps or oils can also be used.

    The newly hatched crawlers and the adults are most susceptible to chemicals, but the waxy covering on the larger immatures makes them more difficult to cover thoroughly with spray material. Resistance is a major problem, and every effort should be made to rotate chemicals with each application. Do not rely on any one product or chemical class for whitefly control.

    If your preference is for biological control, several biological agents are available. These include predators (e.g., Orius, Delphastus, lacewing larvae), parasitoids (e.g., Eretmocerus, Encarsia), or pathogens (e.g., Beauveria bassiana). In Florida, Encaria sophia (formerly transvena) has been used to effectively manage Bemisia tabaci on ornamentals and vegetables grown in greenhouses. Check with your local garden center or supplier for information about compatibility with chemicals and environmental requirements such as temperature, humidity, and daylength.
  • Ang Ang on Dec 19, 2017
    Dawn dishsoap ! Mix with water in a watering can, you can mix quite a lot if Dawn, pour it over your plants daily (if it’s a hearty plant like a sago - you could do 2-3xs/day) I have the same issue with my sago, apparently everyone is having this issue with sagos, I also found some oil concentrate stuff at Home Depot, that I still need to use. But try the dawn/water approach first. Enough of dawn in the water to make it nice and soapy like a bubble bath.
  • Ang Ang on Dec 19, 2017
    By the wa, you’ll want to use the regular BLUE DAWN. The kind with the duck on the front is fine (I think it’s more concentrated than the Dawn you would find at Family Dollar it Dollar General)
  • Mary Coakley Mary Coakley on Dec 21, 2017
    The most budget friendly way is to put washing up liquid.mixed with water in a spray bottle and spray every few days check to see.if they are dead just spray again will not effect plants
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