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Flat-headed hardwood borer

Flat-headed hardwood borer

Dicerca divaricata

A species of Dicerca, Also known as Flatheaded Hardwood Borer

Dicerca divaricata is a species of black coloured beetle from Chrysochroinae subfamily which is 15–22 millimetres (0.59–0.87 in) long and is found throughout West Virginia. The species is known for feeding on various maples such as Acer saccharum and Acer rubrum as well as Ulmus americana and Cercis species. The species fly in June.

General Info About Flat-headed hardwood borer
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Attributes of Flat-headed hardwood borer
Colors
Brown
Black
White
Habitat
Forests and orchards.
Adult Food Sources
Leaves, nectar, pollen, small insects, tree sap
Venomous
Not reported
Non-poisonous
Not reported
Borer
Not reported
Pollinator
Not reported
Pest-Eating Predatory
Not reported
Phytophagous
Not reported
Predatory
Not reported
Biting animal or pet
Not reported
Mouthparts Type
Chewing mouthparts
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Species Status of Flat-headed hardwood borer
Common
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Distribution Area of Flat-headed hardwood borer
North America
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Life Cycle of Flat-headed hardwood borer
Egg The oval and minute eggs of the flat-headed hardwood borer are laid in secluded areas, often not easily visible to the naked eye. During this period, the embryo develops within the protective shell, subtly changing its color as it matures.
Larva Upon hatching, the flat-headed hardwood borer enters the larval stage, characterized by a worm-like appearance with a voracious appetite. The larva frequently sheds its exoskeleton to accommodate rapid growth, often drastically changing in size and form.
Pupal The flat-headed hardwood borer forms a pupa in which substantial transformation occurs. This immobile stage sees the insect encased in a cocoon or similar structure. Within, the body reorganizes into its adult form, with significant changes in structure and color becoming evident over time.
Adult Emerging from the pupa, the adult flat-headed hardwood borer boasts a hardened exoskeleton and developed wings. The adult's markedly different size and coloration, as well as its functional reproductive organs, signify its readiness for dispersal and mating to continue the life cycle.
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Predators of Adult Flat-headed hardwood borer
Birds, rodents, lizards, spiders
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Interesting Facts About Flat-headed hardwood borer
The larvae of flat-headed hardwood borer have a unique ability to survive inside submerged logs, accessing oxygen through waterlogged wood.
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Scientific Classification of Flat-headed hardwood borer
Tips for Finding Flat-headed hardwood borer
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Youth Habitat of Flat-headed hardwood borer
Forests and Woodlands, Rotting and Decaying Matter
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Adult Habitat of Flat-headed hardwood borer
Forests and Woodlands
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How Can You Attract Flat-headed hardwood borer
Adult flat-headed hardwood borer are often attracted to sap flows on trees, decaying wood where they lay their eggs, or certain plant volatiles. Sweet baits or fermenting fruit traps can be used to attract and capture adult specimens.
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What is the Best Weather to Observe Flat-headed hardwood borer
Dry and warm weather conditions are most suitable for locating adult flat-headed hardwood borer, as they are more active in such conditions and likely to be found on the surface of trees or flying around. Larvae stages are less dependent on weather and more on the condition of the wood they inhabit.
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How and Where Can You Find Flat-headed hardwood borer at Different Life Stages
Larva Flat-headed hardwood borer larvae develop inside the wood of dead or dying trees. To find them, search for trees with symptoms of borer infestation, like D-shaped exit holes or frass (sawdust-like excrement) around the tree's base. Use a knife or chisel to gently remove bark pieces and inspect for larvae.
Pupal Flat-headed hardwood borer pupae can be found within the wood where the larval stage was completed. To locate them, follow the same steps as for finding larvae, but look for partially transformed individuals that indicate the wood's pupal chambers.
Adult Adult flat-headed hardwood borer can be observed on the surface of trees, especially where sap runs or on sun-exposed wood. Look for them during warm, sunny days or set up traps baited with fermenting fruit or other sweet substances to attract them.
Are Flat-headed hardwood borer harmful?
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Harmful Effects of Flat-headed hardwood borer
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Hurt Plant

The larval and adult stages of flat-headed hardwood borer attack host plants, causing mild to severe damage. They chew through stems, leaves, and roots, with larvae boring into tissues. Affected plants show signs of distress, reduced growth, and in severe cases, mortality.

More Effects of Flat-headed hardwood borer

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