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Clay-coloured billbug

Clay-coloured billbug

Sphenophorus aequalis

A species of Billbug weevils

Sphenophorus aequalis, the clay-coloured billbug, is a species of true weevil in the family of beetles known as Curculionidae. It is found in North America.

General Info About Clay-coloured billbug
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Attributes of Clay-coloured billbug
Larva Food Source
Grass roots, corn roots, sugarcane roots, wheat roots, other graminaceous plants' roots
Biting/stinging
Not reported
Allergy-causing
Not reported
Defensive attack
Not reported
Venomous
Not reported
Non-poisonous
Not reported
Borer
Not reported
Pollinator
Not reported
Pest-Eating Predatory
Not reported
Phytophagous
Not reported
Predatory
Not reported
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Life Cycle of Clay-coloured billbug
Egg At this inaugural stage, the eggs of clay-coloured billbug are often laid in clusters or individually in a secure environment. The eggs are typically small, oval, and have a rigid shell protecting the developing embryo inside. They exhibit minimal visible changes until hatching commences.
Larva The larva of clay-coloured billbug emerges as a legged, worm-like creature, primarily focused on feeding and growth. Its color, pattern, and size evolve with each molt. The larva lacks wings and reproductive structures and undergoes significant changes during successive instars.
Pupal The clay-coloured billbug pupa is a quiescent stage during which the larva's body undergoes significant transformation. Encased within a protective cocoon or cell, the clay-coloured billbug displays no external movement. Inside, tissues and organs are reorganized, preparing for adulthood.
Adult Emerging from the pupa, the adult clay-coloured billbug’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. It exhibits distinct coloration and may have sexually dimorphic traits.
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Predators of Clay-coloured billbug Larvae
Birds, rodents, ground beetles, predacious ants
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Interesting Facts About Clay-coloured billbug
The larvae of clay-coloured billbug exhibit a peculiar behavior, vibrating rapidly when threatened to startle predators and deter attacks.
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Scientific Classification of Clay-coloured billbug
Tips for Finding Clay-coloured billbug
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Adult Habitat of Clay-coloured billbug
Grasslands and Prairies, Agricultural and Cultivated Areas
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Habitat Preferences of Clay-coloured billbug Through Different Life Stages
The eggs of clay-coloured billbug are typically laid in the soil near host plants where larvae emerge and feed on the roots. Searching for eggs requires sifting through the top layers of soil. Larvae, during their subterranean growth phase, are found deeper in the earth, necessitating excavation around host plant root systems. Pupae reside in earthen cells, so monitoring soil near affected plants increases detection chances. Adults of clay-coloured billbug can be found on or near host vegetation; search by visually inspecting the area and examining plant surfaces during the active daytime hours. Each stage requires careful observation in these habitats respective to their distinctive development phases.
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Harmful Effects of Clay-coloured billbug
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Agricultural Pests

Adult clay-coloured billbug are known for boring into the stems and roots of corn, causing physical damage that can range from mild to severe. This pest's feeding habits disrupt the plant's vascular system, leading to wilted and discolored tissues. Severe infestations can result in stalk breakage, reduced yield, and may attract secondary pests or pathogens. The economic impact includes decreased crop quality and increased management costs.

More Effects of Clay-coloured billbug

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