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Viburnum leaf beetle

Viburnum leaf beetle

Pyrrhalta viburni

A species of Pyrrhalta, Also known as Guelder rose leaf beetle

The snowball leaf beetle (Pyrrhalta viburni) is a beetle of the family of leaf beetles (Chrysomelidae).

General Info About Viburnum leaf beetle
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Attributes of Viburnum leaf beetle
Colors
Brown
Black
Habitat
arrowwood
Adult Food Sources
Viburnum leaves, viburnum flowers, viburnum fruit, viburnum shoots, viburnum buds
Larva Food Source
Viburnum leaves, viburnum shoots, viburnum buds, viburnum flower clusters, viburnum seeds
Biting/stinging
Not reported
Allergy-causing
Not reported
Defensive attack
Not reported
Venomous
Not reported
Non-poisonous
The Viburnum leaf beetle is non-toxic and generally doesn't pose a risk to human health. No need for excessive worry.
Borer
The Viburnum leaf beetle can bore into the wood and may damage its structure, or even harm the health of trees. Stay alert if you frequently observe it in your house.
Pollinator
The Viburnum 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
The Viburnum leaf beetle feeds on plants, usually without causing significant harm. However, it's important to take the situation seriously if their numbers begin to increase significantly.
Predatory
Not reported
Biting animal or pet
Not reported
Mouthparts Type
Chewing mouthparts
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Species Status of Viburnum leaf beetle
It is native to Europe and Asia. It is distributed throughout eastern Canada and the northeastern United States.
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Distribution Area of Viburnum leaf beetle
Canada, United States
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Life Cycle of Viburnum leaf beetle
Egg After laying, the egg of viburnum leaf beetle remains stationary, gradually increasing in size as the insect inside develops. The egg is usually small, oval, and initially pale, but may darken over time.
Larva The larva of viburnum leaf beetle hatches with a voracious appetite, immediately beginning to feed. It's elongated with a soft body, lacking developed wings. As it grows, it molts several times, increasing in size each time.
Pupal After reaching a sufficient size, the larva of viburnum leaf beetle forms a pupa. During this stage, it undergoes remarkable transformation, reshaping its body. The pupa is generally inactive and appears mummified.
Adult Emerging from the pupa, the adult viburnum 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 Viburnum leaf beetle
4.5 - 7 mm
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Predators of Viburnum leaf beetle Larvae
Birds, rodents, predatory beetles, lacewings, spiders, parasitic wasps
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Predators of Adult Viburnum leaf beetle
Birds, spiders, rodents, reptiles, mammalian insectivores
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Interesting Facts About Viburnum leaf beetle
Viburnum leaf beetle larvae disguise themselves using their own excrement to avoid predators, a behavior known as fecal shielding.
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Scientific Classification of Viburnum leaf beetle
Tips for Finding Viburnum leaf beetle
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Youth Habitat of Viburnum leaf beetle
Forests and Woodlands, Urban and Suburban Areas, Agricultural and Cultivated Areas
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Adult Habitat of Viburnum leaf beetle
Forests and Woodlands, Urban and Suburban Areas, Agricultural and Cultivated Areas
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How Can You Attract Viburnum leaf beetle
Not applicable as people do not commonly use traps with food bait to find viburnum leaf beetle.
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Habitat Preferences of Viburnum leaf beetle Through Different Life Stages
The egg stage of viburnum leaf beetle is typically found on the undersides of leaves of their host plants, such as viburnum species. Larvae prefer the tender, new foliage and can be discovered feeding there. As they mature, the larvae may move to older leaves. Pupation usually occurs in the soil or leaf litter beneath the host plant, where the larvae descend when they are ready to transition. Adults emerge and are often found on or near the host plants, feeding on leaves and seeking mates. To find the different stages, search on the host plants for eggs and larvae, inspect the soil or litter under these plants for pupae, and look on the upper leaves for feeding adults.
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When is the Best Time to Observe Viburnum leaf beetle
Early morning or late afternoon when temperatures are cooler and viburnum leaf beetle is less active.
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What is the Best Weather to Observe Viburnum leaf beetle
Overcast days with mild temperatures are ideal for finding viburnum leaf beetle as they are less likely to be hiding from extreme conditions.
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How and Where Can You Find Viburnum leaf beetle at Different Life Stages
Larva Viburnum leaf beetle larvae can be found on the underside of leaves of host plants, especially those of the Viburnum species. Look closely at the chewed leaves for signs of their presence, as they often remain close to feeding sites.
Pupal Finding viburnum leaf beetle in its pupal stage requires searching the leaf litter or soil near the host plants. The pupae are usually encapsulated in a cocoon-like structure, camouflaged in the environment.
Adult Viburnum leaf beetle adults are found on or near host plants. Searching for viburnum leaf beetle should involve inspecting the foliage and flowers during the suitable time and weather conditions. They might also be spotted by their feeding damage to leaves.
Are Viburnum leaf beetle harmful?
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Usually, the viburnum 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 Viburnum 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 Viburnum leaf beetle
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Agricultural Pests

Larvae of viburnum leaf beetle specifically target Viburnum species, chewing through the leaves and potentially causing defoliation. Minor infestations result in aesthetic damage, while severe outbreaks can lead to significant leaf loss, weakening the plants. This damage can reduce the ornamental and market value of these shrubs, indirectly affecting human interests.

More Effects of Viburnum leaf beetle

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