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Elm leaf beetle

Elm leaf beetle

Xanthogaleruca luteola

A species of Xanthogaleruca

Based on its name, the elm leaf beetle (Xanthogaleruca luteola) is a major defoliator of elm tree leaves. They eat around the larger veins on the leaves, causing them to dry out. As a result, they are considered invasive in most parts of the world. They are yellow or green and can be identified with a spot next to an hourglass shape on the head.

General Info About Elm leaf beetle
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Attributes of Elm leaf beetle
Adult Food Sources
Elm tree leaves, elm fruits, tender elm twigs, elm flowers, elm bark
Larva Food Source
Elm tree leaves, soft elm bark, elm flowers, young elm shoots, elm tree seedlings
Biting/stinging
Not reported
Allergy-causing
Not reported
Defensive attack
Not reported
Venomous
Not reported
Non-poisonous
Not reported
Borer
Not reported
Pollinator
The Elm leaf beetle is often found near the corolla, where its fluffy hairs easily pick up pollen, assisting in the pollination of the plant.
Pest-Eating Predatory
Not reported
Phytophagous
Not reported
Predatory
Not reported
Biting animal or pet
Not reported
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Species Status of Elm leaf beetle
It is common in the Western Palaearctic ecozone from Portugal to Central Asia.
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Life Cycle of Elm leaf beetle
Egg At this initial stage, the eggs of elm leaf beetle are often laid in groups on a food source. They are small and may vary in color, usually taking on a hue that camouflages them with the environment to protect from predators.
Larva The larva of elm leaf beetle emerges as a legged, elongated form, focusing on feeding and growth. It lacks wings and has a soft exoskeleton. The larva molts several times, increasing in size with each molt.
Pupal In the pupal stage, elm leaf beetle undergoes transformation inside a protective cocoon. It is immobile and may appear mummified. During this stage, the body reorganizes into the adult form, developing wings and reproductive structures.
Adult Emerging from the pupa, the adult elm leaf beetle's development is marked by the presence of wings and functional reproductive organs. The body is fully formed and hardened, and the adult is mobile, focusing on reproduction.
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Adult Size of Elm leaf beetle
6 - 8 mm
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Predators of Elm leaf beetle Larvae
Birds, rodents, parasitic wasps, predaceous beetles, spiders
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Predators of Adult Elm leaf beetle
Birds, mammals, lizards, predatory insects, spiders
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Interesting Facts About Elm leaf beetle
Elm leaf beetle larvae can produce a protective shield made of their own feces to deter predators, a behavior known as 'fecal shielding.'
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Scientific Classification of Elm leaf beetle
Tips for Finding Elm leaf beetle
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Adult Habitat of Elm leaf beetle
Forests and Woodlands, Urban and Suburban Areas, Agricultural and Cultivated Areas
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Habitat Preferences of Elm leaf beetle Through Different Life Stages
The eggs of elm leaf beetle are commonly found on the underside of leaves, specifically favoring elm trees, where they are discretely laid. Larvae typically reside on the same trees, feeding on the leaves and can often be found by carefully inspecting the foliage. In the search for pupae, one should examine the crevices in the bark or the soil at the base of the host trees, as the larvae descend to pupate in a sheltered place. Adult elm leaf beetle can be spotted on or around their preferred elm trees, where they feed and mate. To find them, one must scrutinize the leaves, branches, and bark, especially during warm and sunny days when they are most active.
Are Elm leaf beetle harmful?
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Usually, the elm leaf beetle won't threaten or hurt humans. But remember that even a worm will turn. Remember to still be cautious.

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Are Elm leaf beetle harmful to humans?

Some colorful leaf beetles are actually toxic, and their beautiful appearance is warning predators: I am very dangerous, do not eat me! However, just observing with your eyes and touching the leaf beetle with your hand will not be poisoned.
Harmful Effects of Elm leaf beetle
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Agricultural Pests

Larvae of elm leaf beetle feed voraciously on leaves, leading to defoliation that can range from mild to severe, depending on the pest population. Severely affected plants may experience stunted growth and reduced yield. Large infestations can significantly impact agricultural productivity and potentially affect food supplies.

More Effects of Elm leaf beetle

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