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Asiatic oak weevil

Asiatic oak weevil

Cyrtepistomus castaneus

A species of Cyrtepistomus

The asiatic oak weevil (Cyrtepistomus castaneus) starts as a greenish-gray color, but that shade can wear away over time, revealing a reddish-brown color underneath. It's considered a pest because it feeds on leaves, starting from the outside of the leaf and working its way to the vein. Its favorite place to seek shelter is inside leaves that are tied together by caterpillars.

General Info About Asiatic oak weevil
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Attributes of Asiatic oak weevil
Biting/stinging
Not reported
Allergy-causing
Not reported
Defensive attack
Not reported
Venomous
Not reported
Non-poisonous
The Asiatic oak weevil is non-toxic and generally doesn't pose a risk to human health. No need for excessive worry.
Borer
Not reported
Pollinator
Not reported
Pest-Eating Predatory
Not reported
Phytophagous
The Asiatic oak weevil 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 Asiatic oak weevil
It is found in North America.
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Distribution Area of Asiatic oak weevil
North America
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Life Cycle of Asiatic oak weevil
Egg During this initial stage, the egg of asiatic oak weevil is typically small, oval, and may vary in color depending on species, often deposited in a secure and suitable environment for development.
Larva After hatching, the larva of asiatic oak weevil appears worm-like with a soft body, distinctly different from adults. It continuously feeds and grows, molting several times and may change in color.
Pupal The pupal stage of asiatic oak weevil signifies a period of intense transformation. Encased within a protective cocoon, it is immobile and gradually takes on the adult shape.
Adult Emerging from the pupa, the adult asiatic oak weevil displays hard exoskeleton and fully developed wings. The coloration is species-specific and the adult focuses on feeding and reproduction.
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Adult Size of Asiatic oak weevil
4 - 6 mm
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Interesting Facts About Asiatic oak weevil
Asiatic oak weevil uses its elongated snout to expertly bore into tough seeds, showcasing a high degree of specialization in its diet and feeding habits.
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Scientific Classification of Asiatic oak weevil
Tips for Finding Asiatic oak weevil
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Youth Habitat of Asiatic oak weevil
Forests and Woodlands, Rotting and Decaying Matter
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Adult Habitat of Asiatic oak weevil
Forests and Woodlands
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How Can You Attract Asiatic oak weevil
For asiatic oak weevil, appropriate trap foods could include substances that mimic the pheromones they produce or plant materials they commonly feed on, depending on the specifics of this species' diet.
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Habitat Preferences of Asiatic oak weevil Through Different Life Stages
Eggs of asiatic oak weevil are often laid within crevices of their host plants, such as tree bark or leaf litter, offering protection and a food source upon hatching. The larvae typically reside in soil or leaf litter where organic matter is abundant, providing them with nutrition during development. Pupation often occurs in the soil, which provides a stable environment for metamorphosis. To find these stages, inspect the host plant and surrounding soil for eggs, sift through leaf litter and soil for larvae, and delicately excavate near host plants to locate pupae.
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How and Where Can You Find Asiatic oak weevil at Different Life Stages
Larva Asiatic oak weevil larvae are typically found in or near host plants they feed on. To find them, inspect the roots, stems, or leaves of potential host plants for signs of feeding or the larvae themselves.
Pupal Asiatic oak weevil pupae may be more difficult to locate as they are often hidden in the soil or within plant structures. Gently excavating around the base of known host plants without damaging the roots can sometimes reveal them.
Adult Adult asiatic oak weevil can be spotted on or near host plants. Look for them by visually scanning the plants they are known to feed upon, particularly during their most active periods of the day or season.
Are Asiatic oak weevil harmful?
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Harmful Effects of Asiatic oak weevil
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Stored Produce Pest

Asiatic oak weevil is identify as a pest that affects stored dry goods such as grains, beans, and nuts. This pest operates in both adult and larval stages, boring into kernels and seeds, which can cause mild to severe damage. As they feed and reproduce, the quality and weight of the commodities are compromised, leading to economic loss. The behavior of boring and residing in the foodstuffs also accelerates spoilage and contamination.

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Agricultural Pests

Both larvae and adults of asiatic oak weevil attack a variety of crops, chewing and boring into roots, stems, and leaves. Minor infestations may cause limited damage, while severe outbreaks might lead to substantial crop loss. This pest's activities may result in decreased yields and compromised plant health, potentially impacting agricultural profitability and food supply.

More Effects of Asiatic oak weevil

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