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Metallic wood-boring beetle

Metallic wood-boring beetle

Agrilus cyanescens

A species of Agrilus

The species is listed in the Red Lists of Brandenburg as highly endangered. In Schleswig-Holstein it is considered endangered, in Saxony-Anhalt as extremely rare and potentially endangered.

General Info About Metallic wood-boring beetle
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Attributes of Metallic wood-boring beetle
Adult Food Sources
Leaves, flower parts, pollen, plant sap, bark surface
Larva Food Source
Inner bark of trees, phloem tissues, xylem tissues, leaves (in some cases during early instars)
Biting/stinging
Not reported
Allergy-causing
Not reported
Defensive attack
Not reported
Venomous
Not reported
Non-poisonous
The Metallic wood-boring beetle is non-toxic and generally doesn't pose a risk to human health. No need for excessive worry.
Borer
The Metallic wood-boring 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
Not reported
Pest-Eating Predatory
Not reported
Phytophagous
The Metallic wood-boring 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
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Life Cycle of Metallic wood-boring beetle
Egg The egg of metallic wood-boring beetle is often oval and of diminutive size. Typically laid in clusters, the eggs display a color that blends with the environment, providing camouflage. This stage is mainly characterized by developmental processes occurring within, preparing for the larval stage.
Larva Upon hatching, the larva of metallic wood-boring beetle is worm-like in appearance, with a voracious appetite. It undergoes several molts, increasing in size with each. The larva lacks wings and has a soft exoskeleton, which varies in color, often matching its feeding habitat.
Pupal Transformation into the pupa signifies a period of radical change. Encased within a protective cocoon or cell, the pupa of metallic wood-boring beetle may be mistaken for non-living matter. Inside, the tissues are reorganizing to form the adult structures, the color and form changing drastically.
Adult Emerging from the pupa, the adult metallic wood-boring 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. It showcases vibrant colors and the shiny exoskeleton characteristic of its family.
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Adult Size of Metallic wood-boring beetle
4.5 - 7 cm
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Predators of Metallic wood-boring beetle Larvae
Birds, rodents, parasitic wasps, pathogenic fungi
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Predators of Adult Metallic wood-boring beetle
Birds, rodents, spiders, mantises, lizards, parasitic wasps
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Interesting Facts About Metallic wood-boring beetle
Metallic wood-boring beetle can manipulate the chemistry of tree bark to create an environment favorable for their larvae to thrive.
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Scientific Classification of Metallic wood-boring beetle
Tips for Finding Metallic wood-boring beetle
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How Can You Attract Metallic wood-boring beetle
Adult metallic wood-boring beetle are attracted to certain chemicals such as pheromones or plant volatiles which can be used as bait in traps.
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Habitat Preferences of Metallic wood-boring beetle Through Different Life Stages
The eggs of metallic wood-boring beetle are typically deposited in crevices of tree bark. Upon hatching, the larvae, or grubs, bore into cambium and heartwood, often favoring weakened or dead host trees. The larvae's presence is usually indicated by frass or sawdust around the entry hole. Searching in such locations often requires peeling off tree bark or using specialized equipment. Pupation takes place within the tree, in a chamber near the outer bark. Adults, once emerged, are found on or around the host trees, frequently on leaves or bark. To find adults, one might inspect sun-exposed branches or trunks during warm days when they are more active.
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When is the Best Time to Observe Metallic wood-boring beetle
The best time to find adult metallic wood-boring beetle is during their active season, which may vary but it is often in the warmer months when they are mating and laying eggs.
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What is the Best Weather to Observe Metallic wood-boring beetle
Weather conditions such as warm, sunny, and calm days are typically more suitable for finding adult metallic wood-boring beetle as they are more active in these conditions for mating and laying eggs.
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How and Where Can You Find Metallic wood-boring beetle at Different Life Stages
Larva Search for entrance holes in tree bark or sawdust-like frass around trees, indicating larval activity.
Pupal Look for pupal chambers just beneath the bark or in the outer layers of wood.
Adult Observe the leaves of trees for feeding damage or catch them by using traps baited with pheromones or host plant volatiles.
Are Metallic wood-boring beetle harmful?
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Harmful Effects of Metallic wood-boring beetle
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Hurt Plant

The 'metallic wood-boring beetle' causes severe damage to host plants in both larval and adult stages regardless of the plant type. It primarily bores into stems and leaves, critically disrupting the plant's vascular system. This can result in wilting, decreased vigor, and in severe cases, the death of the plant.

More Effects of Metallic wood-boring beetle

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