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Adult |
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WHITEFLIES Q-biotype
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GREENHOUSE WHITEFLY |
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Adult |
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Eggs |
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Scales |
| The greenhouse whitefly is an important and most persistent pest of many ornamentals, particularly poinsettia, as well as bedding plants such as ageratum, fuchsia and salvia. However, this pest is of only occasional importance on tropical foliage plants, unless they are grown in accompaniment with a major whitefly host. Adults are white and are the most easily detected stage as they fly when disturbed, quickly settling again on lower leaf surfaces of the newly expanded foliage. Infestations can begin by introduction of infested plants or migration of adults from other crops or weed hosts either inside or outside of the greenhouse. Once again, the growth of sooty molds will accompany and follow an infestation. Seriously affected foliage becomes chlorotic and wilted. |
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SILVERLEAF or SWEETPOTATO WHITEFLY |
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Adult |
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Scales |
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| Damage to ivy from scales feeding on older leaves below this leaf on the same stem. |
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| Damage to Mandevilla from scales feeding on older leaves below this leaf on the same stem. |
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GIANT WHITEFLY |
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Adult |
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Adults on Hibiscus |
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Egg spiral on Hibiscus. |
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| The immature stages or scales of this whitefly make a waxy material that hangs from the infested leaves. This material is often called a "beard" and can be as long as 6 inches. |
| More information on whiteflies can be viewed at "Insect and Related Pests of Flowers and Foliage Plants". Click here to go there now! |
