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Yamato cockroach

Periplaneta japonica

A species of Periplaneta

The Japanese cockroach (Periplaneta japonica), also known as the Yamato cockroach, is a cockroach native to Japan, adapted to cooler northern climates. It has a flexible univoltine or semivoltine (one- or two-year) lifecycle, depending on the timing of its hatching, and is unusual in being able to spend two winters as diapause nymphs before reaching maturity.

General Info About Yamato cockroach
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Attributes of Yamato cockroach
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
Biting animal or pet
Not reported
Mouthparts Type
Chewing mouthparts
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Life Cycle of Yamato cockroach
Egg The eggs of yamato cockroach are laid in a protective case called an ootheca. They are typically oval and of a uniform color that may blend with their surroundings.
Nymph Upon hatching, the nymphs of yamato cockroach resemble the adults but are smaller, lack fully developed wings, and have slightly different coloration. They will molt several times, growing larger with each stage.
Adult The adult yamato cockroach has a hardened exoskeleton, developed wings, and is fully capable of reproduction. The coloration may vary from nymph stages, serving its need for camouflage or partner attraction.
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Predators of Yamato cockroach Larvae
Frogs, toads, birds, spiders, mantis, geckos
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Predators of Adult Yamato cockroach
Birds, mammals, spiders, centipedes, reptiles
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Interesting Facts About Yamato cockroach
Yamato cockroach can survive cold winters outdoors, an unusual trait not shared by its close relatives.
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Scientific Classification of Yamato cockroach
Tips for Finding Yamato cockroach
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Adult Habitat of Yamato cockroach
Urban and Suburban Areas, Forests and Woodlands, Caves and Subterranean Areas
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Habitat Preferences of Yamato cockroach Through Different Life Stages
Yamato cockroach nymphs are typically found in warm, damp, and dark environments like beneath decomposing logs, in leaf litter, or in crevices of buildings where they have access to food and moisture. Adults prefer similar habitats but are more likely to be found higher up, such as in the upper levels of buildings, to reproduce. To look for yamato cockroach at different growth stages, carefully search their common habitats: sift through leaf litter and inspect under logs for the nymphs, while checking cracks and crevices at higher elevations for the adults, especially during the night when they are most active.
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Harmful Effects of Yamato cockroach
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Nuisance Pests

Yamato cockroach becomes a severe nuisance as both adults and nymphs invade human dwellings, posing health risks by spreading pathogens and causing allergies. Their habit of scavenging leads to contamination of food and surfaces, distressing household residents.

More Effects of Yamato cockroach

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