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Wiktionary
whitefly

n. Any of various small insects of the family Aleyrodidae that have long wings, and a white body; often a garden pest

WordNet
whitefly

n. minute insect that feeds on plant juices; related to scale insects

Wikipedia
Whitefly

Whiteflies are small Hemipterans that typically feed on the undersides of plant leaves. They comprise the family Aleyrodidae, the only family in the superfamily Aleyrodoidea. More than 1550 species have been described.

Usage examples of "whitefly".

It can be used as a contact and stomach poison as well as a repellent against flies, roaches, aphids, fleas, thrips, leafhoppers, Whiteflies and some kinds of beetles.

They strike against leafhoppers, scale, Whiteflies, larvae of beetles, and caterpillars.

These oils work particularly well on mealybugs, aphids, scale insects, mites, Whiteflies, psyllids, and eggs of other pests like leaf rollers and fruit tree moths.

They are particularly effective on aphids, earwigs, leaf hoppers, sawflies, leaf miners, spider mites, thrips, scale and Whiteflies.

She plants it in the ground behind the plant, then lightly sprays the plant with water from the opposite side, forcing the Whiteflies off the plant and right onto the trap.

Spray on plants to kill or repel cutworms, Wireworms, other caterpillars, slugs and Whiteflies.

This confuses pests like Whiteflies that like to get under leaves away from the light.

All the others are too small for most people to be aware of, but they do excellent work controlling Whiteflies, thrips, caterpillars and other pests in the garden.

In greenhouses this wasp can control the population of Whiteflies to the point where damage is negligible.

In addition to the plants, the succulent had replicated an aphid, a bird mite, a hummingbird, a ladybug, a tomato worm, whitefly, a fungus and weird things she didn't recognize but which must be microbes or mitochondria or bacteria or nematodes.

To treat whiteflies, use an insecticidal soap at five day intervals or spray with a solution of four parts water to three parts rubbing alcohol -- add a squirt of dish soap for good measure -- and keep the plant out of the light until the alcohol dries completely.