Tomato, pepper, squash, melons, cucumber (and other cucurbitaceae members), broccoli, cauliflower, cabbage (and other brassica members), cotton, carrots, potato, and fresh herbs such as basil and mint
Whitefly is a multi-host with considerable differences that exist in appearance between adult and nymph stages. Females can lay dozens of eggs, usually on the underside of leaves. Nymphs feed by stabbing into the plant with their mouth-parts, sucking up sap from the phloem, and excreting honeydew (a sugar-rich substrate that promotes the growth of sooty mold.) The adults are white and capable of flying, hence the name.
Damage to hosts is caused directly from feeding and indirectly from honeydew. However, their ability to spread viruses have the greatest economic impact. Whitefly vector plant viruses like Begomoviruses, which is a group of plant viruses such as TYLCV in tomatoes and CYSDV in cucurbits. Whiteflies transmit Begomoviruses to host plants.
Growing inside structures: The most effective way to protect your crop from whiteflies is simply (but costly) growing it inside a greenhouse or a dense (50 Mesh) net structure.
Synthetic soil ground covers and floating row covers can help in reducing whiteflies from reaching host plants, hence resulting in a lower incidence of transmitted viruses.
Sanitation: Try keeping your crop’s close surroundings and environmental conditions as neat by removing weeds and any potentially close by plants that are non-cultivated or protected, which can attract whiteflies.
Traps: Use sticky yellow traps that lure and capture part of adult population; they aid in monitoring changes in the overall population.
The following are insecticides used in one or more parts of the world: cypermethrin, deltamethrin, bifenthrin, diafenthiuron, thiamethoxam, imidacloprid, acetamiprid, spiromefisen, buprofezin, cyantraniliprole, spirotetramat, and synthetic terpenes extract of chenopodium.
Azadirachtin, Fatty acid potassium SAL, Beauveria bassiana strain GHA, neem oil, and other plant oils
Amblyseius swirskii is a commercially available predatory mite that is capable of significantly controlling whitefly population.