What insecticide kills whitefly?

Broad-spectrum insecticides that kill whiteflies are not recommended for use on your whitefly-infected plants because these insecticides also kill natural whitefly predators, such as ladybugs or lady beetles, parasitic wasps, and spiders. Alternatives to broad-spectrum insecticides include:

  • Imidacloprid, a low toxicity product designed to affect insect neurotransmitters, has been proven effective in treating whiteflies. Mixed with water and applied to the base of thirsty plants, the roots absorb Imidacloprid internally. Used annually, following the manufacturer’s instructions, Imidacloprid should not be applied one month before or during plants’ blooming cycle, to protect honeybees from exposure to this product in their nectar and/or pollen.
  • Insecticidal soaps, readily available on the market, are applied to the undersides of leaves and can be effective on whiteflies and non-toxic to beneficial insects that prey on whiteflies.
  • Horticultural plant-based oils, such as neem oil, sprayed on the undersides of leaves in the morning or evening can also be effective in suffocating whiteflies on contact while minimizing adverse effects on whitefly predators.

Whitefly infestations are notoriously troublesome for West Florida homeowners who have tried to remedy the situation on their own. When trying to kill whitefly, it is best to rely on an experienced pest control expert, such as Pestwise. Our knowledgeable techs are well-versed in the pros and cons of various treatment options and will work hard to ensure your complete satisfaction. Contact us today and we’ll schedule a visit to your whitefly-infested home garden in Clearwater or Palm Beach County.

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