Insects Active during the day

Giant Whitefly

Aleurodicus dugesii

iNaturalist

A master of disguise and wax-work, the Giant Whitefly is an architectural marvel of the insect world. Famous for the long, silky waxy filaments its larvae produce, this tiny garden inhabitant creates miniature forests of 'hair' on the undersides of leaves.

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Quick Identification

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Size

Wingspan 4-5 mm (0.15-0.2 inches); body length approximately 2-3 mm (0.08-0.12 inches)

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Colors

Snowy white body and wings covered in a fine waxy powder; nymphs produce long, translucent or white waxy filaments

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Key Features

Moth-like appearance with white powdery wings
Significantly larger than common greenhouse whiteflies
Nymphs produce dramatic, 2-inch long waxy 'hair' filaments
Adults often congregate on the undersides of host plant leaves

When You’ll See Them

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Activity pattern Active during the day

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Peak hours 10 AM - 4 PM

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Season Year-round in warm climates, peaking in late summer and fall

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Diet Primarily feeds on plant phloem (sap) from a wide variety of ornamental plants, including Hibiscus, Bird of Paradise, Citrus, and Giant Strelitzia.

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Habitat Suburban gardens, nurseries, and urban landscaping with tropical or subtropical ornamental plants.

public Geographic range

Where Does the Giant Whitefly Live?

The Giant Whitefly is native to Mexico but has significantly expanded its territory across North America over the last few decades. It is now a common sight in the southern United States, with established populations throughout California, Texas, Florida, and Arizona. Additionally, it has been introduced to Hawaii and several Caribbean islands, thriving in warm, frost-free environments where its host plants are abundant year-round.

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2 Countries

2.5M km² Range

Least Concern Conservation

MX Mexico

Marginal

US United States

Marginal

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iNaturalist / Verified observation data

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Behavior

The Giant Whitefly is a colonial insect that spends the majority of its life cycle on the undersides of leaves. Unlike many smaller whitefly species, the 'Giant' is easily visible to the naked eye. They are phloem feeders, meaning they pierce plant tissue to drink the nutrient-rich sap. As they feed, they excrete a sticky, sugar-rich liquid known as honeydew, which often coats the leaves below and can lead to the growth of black sooty mold.

The most striking behavior of this species is the production of 'extravagant' wax. The nymphs (immature stages) extrude long, hair-like waxy filaments that can reach several inches in length, creating a beard-like or fuzzy appearance on the host plant. While the adults are mobile and will fly in small, snowy clouds when disturbed, the nymphs remain stationary, protected by their forest of wax and the sticky honeydew they produce.

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Camera Tips

Capturing the Giant Whitefly requires a macro lens or a camera with a very short focal distance, as these insects are small despite their 'giant' name. Focus your camera on the undersides of host plant leaves, specifically targeting plants like Hibiscus, Avocado, or Bird of Paradise. Look for the tell-tale 'spiral' patterns of wax and the long, hair-like filaments; these provide excellent textural contrast and are often easier for AI cameras to detect than the insects themselves.

Because these insects are most active during the day, position your camera to take advantage of bright, indirect sunlight. Direct noon sun can wash out the brilliant white of their wings, so early morning or late afternoon light often produces the best results. If using an AI-powered backyard camera, mount it on a flexible arm or tripod very close to the foliage, ensuring the wind doesn't blow the leaves out of focus, which is a common challenge with macro photography.

To capture flight behavior, you can set your camera to a high shutter speed or 'burst mode.' If you gently tap the branch, the adults will often take flight in a brief, swirling cloud before settling back down. In many regions, they are active year-round, but you will see the highest density of adults and the most dramatic wax production during the warm, dry months of late summer and early autumn.

Similar Species

Species that look similar or are commonly confused with Giant Whitefly.

Silverleaf Whitefly

Much smaller (approx. 1mm) and lacks the long, dramatic waxy filaments produced by the Giant Whitefly.

Woolly Whitefly

Produces a tangled mass of waxy 'wool' rather than the distinct, long, hair-like strands seen in the Giant Whitefly.

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Frequently Asked Questions

Giant Whiteflies are diurnal, meaning they are active during the day. You are most likely to see them flying or feeding during the warmest hours between mid-morning and late afternoon.

You don't usually need to 'attract' them as they are often considered a garden pest. However, planting host species like Hibiscus, Bird of Paradise, or citrus trees in warm climates will naturally bring them to your yard.

They drink the sap (phloem) from the leaves of over 50 different plant species. They are particularly fond of ornamental tropical plants common in suburban landscaping.

Yes, they are very common in suburban areas within their range, especially in Southern California, Florida, and Texas, where ornamental host plants are abundant in residential gardens.

The most obvious difference is size; Giant Whiteflies are roughly three times larger than the common greenhouse whitefly. Additionally, the Giant Whitefly produces very long, hair-like wax filaments, whereas common whiteflies do not.

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