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Most pesticides that are used to control whiteflies are also damaging to Dicyphus. We do not recommend using any pesticide while the biocontrol agent is working in your fields. If pesticide use is absolutely necessary please contact us for a free consultation on which pesticide to use and how it will affect the predator.

Supreme oils, soaps, and spread stickers are not damaging to Dicyphus unless they’ve come into contact with the pesticide.

Please Note: Release rates vary considerably depending upon the crop, infestation level and season of the year. If you require more assistance contact us for a free consultation here.

Dicyphus hesperus is a great predator for whiteflies, especially the greenhouse and tobacco whiteflies. It consumes their eggs and larvae preventing the pest population from increasing. It also feeds on other pests such as spider mites, moth eggs, and larvae of thrips and leaf miner if its preferred prey isn’t available. Dicyphus is commonly used to control whitefly on tomato, pepper, and eggplant plants. An adult female lays about 88 eggs over its lifespan. Dicyphus is shipped in a bottle of 250 adults. We recommend pairing Dicyphus with mullein banker plant to increase its population as well as the monitoring of pests.


MiriLiv 250 (Dicyphus Hesperus)

Amount: 250
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Dicyphus thrives at 24° C and a humidity of 50% or more. This beneficial insect works well in many environments including greenhouses, interiorscapes, nurseries, and botanical gardens. Dicyphus may leave the plant if no food is available. We recommend using a mullein banker plant to ensure the beneficial insects' population is established despite the presence of whiteflies.

Dicyphus are green as nymphs and blackish brown once they turn into adults. The look significantly different from its target pest, whiteflies, and can be easily seen. Take note, however, it hides when scouts approach plants thus scouts need to be extra careful when moving the plant material. On mature tomato crops, they are commonly found on the mid-canopy leaves. Some good signs that Dicyphus is working well is when there is no damage to new leaves and fruits as well as a noticeable difference in the whitefly population.

Release Rates and Tips:

Pesticide and Other Controls:

Ideal Environment:

Dicyphus should be released at the first sign of whiteflies. We recommend releasing about 100 adults in infested areas bi-weekly. If using as a preventative method, use in conjunction with mullein banker plant to ensure it has an adequate food supply.