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Shop > Beneficial Insects > Whitefly Controls

Whiteflies are a major pest of greenhouse crops, including tomatoes and cucumbers as well as many ornamental species, such as poinsettia, gerbera and a number of spring crops. Many weed species are also hosts of whiteflies and often serve as sources of infestations.

Pest Description

Common in crops, whiteflies are tiny (approximately 1/16 to 1/10 inch) with powdery white wings and short antenna. Their wings are various depending species; wings which have a dark zigzag pattern (Banded winged Whitefly), wings which have triangular shape (Greenhouse Whitefly), or wings which have oval shape (Sweet potato Whitefly).

Their eggs are yellow or gray with the size of a pinpoint, and their larvae are flattened round in shape without legs, translucent, and 1/30 inch in size.

Whitefly Damage

They are often found in thick crowds on the undersides of leaves, and they feed on plant sap from new growth causing stunted growth, leaf yellowing and reduced yields. Since, like aphids, whiteflies secrete honeydew, leaves maybe sticky or covered with a black sooty mold.

The worse fact is that whiteflies are vectors that transmit over a hundred different plant viruses which can significantly damage to crops. When the whitefly moves to a new plant and starts feeding, viral particles enter the plant and start an infection cycle. Depending with plant species, both the symptoms they show and their susceptibility are various.

Tips

  • Removing weeds from around and within the greenhouse can make it difficult for whiteflies to reproduce as well as cycle between greenhouse crops and the surrounding environment.
  • Avoiding or removing plants that repeatedly host high populations of whiteflies is also helpful to reduce the population.

DICYPHUS HESPERUS <br> (Predator)
DICYPHUS HESPERUS
(Predator)


ERETMOCERUS MUNDUS <br> (Parasite)-Sold Out
ERETMOCERUS MUNDUS
(Parasite)-Sold Out


DELPHASTUS CATALINAE <br> (Predator)
DELPHASTUS CATALINAE
(Predator)


ENCARSIA FORMOSA <br> (Parasite)
ENCARSIA FORMOSA
(Parasite)


ERETMOCERUS EREMICUS <br> (Parasite)
ERETMOCERUS EREMICUS
(Parasite)




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