Northern Corn Rootworm

diabrotica barberi

Meet the Northern Corn Rootworm (Diabrotica barberi), a small but economically formidable beetle native to North America. Often referred to by farmers as part of the 'billion-dollar bug' complex, this leaf beetle is highly specialized in utilizing maize fields. While the bright green adults are active aerial foragers feeding on corn silk and pollen, their soil-dwelling larvae are the primary source of agricultural concern. They tunnel through corn roots, compromising the plant's structural integrity and ability to absorb nutrients, which frequently causes the crops to fall over. Despite its pest status, the Northern Corn Rootworm is an evolutionary marvel, adapting to modern crop rotation by developing an extended diapause trait that allows its eggs to lie dormant in the soil for multiple seasons, waiting out years when corn is not planted.

Lebensraum: Typically found in agricultural cornfields, adjacent grasslands, and weedy field margins across North America.

Aussehen

Adult Northern Corn Rootworms are small, oval-shaped beetles measuring roughly 5 to 6 millimeters in length. They are easily distinguished by their uniform pale green to yellowish-green coloration, lacking the distinctive dark stripes or spots found on related rootworm species. They possess long, thread-like antennae that are about half the length of their bodies, and their legs are typically pale green or yellowish. The elytra (hardened forewings) are smooth and cover the entire abdomen, hiding the delicate flying wings beneath.

ReichAnimaliaStammArthropodaKlasseInsectaOrdnungColeopteraFamilieChrysomelidaeGattungDiabrotica

Northern Corn Rootworm

Kategorie

Insekten

Seltenheit

Common

Gefahr

1/5 · Sehr gering

Snaps

Mach den ersten Snap!

Interessante Fakten

Larvae can travel up to twelve inches through packed soil to find corn roots immediately after hatching.

This species has successfully outsmarted human crop rotation systems by evolving the ability to keep its eggs dormant for two years instead of one.

While they are major agricultural pests, adult beetles are surprisingly beautiful, sporting a clean, uniform pastel green color.

Besondere Fähigkeiten

Some populations lay eggs that can remain dormant in the soil for two or more winters, allowing them to bypass standard annual crop rotations.

Adults use sensitive receptors on their antennae to detect specific chemical compounds emitted by corn tassels and silk from long distances.

Larvae possess specialized, strong mandibles designed to burrow efficiently through tough corn root tissue while avoiding plant defenses.

Maße und Details

Länge: 0 cm
Flügelspannweite: 1-2 cm
Gewicht: 0 kg
Gelegegröße: 200-1000
Brutzeit: 240-330 Tage

Ernährung und Fütterung

Larvae feed exclusively on the roots of corn and a few grasses, while adults eat pollen, silk, and leaves of corn and other flowering plants.

Hauptnahrung

Corn pollen
Corn silk
Corn leaves
Squash blossoms
Dandelion pollen

Nahrungssuche

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Ökologische Zusammenhänge

host plant

Corn

Zea mays

Acts as a primary larval host plant, providing nutrition to developing larvae and adults.

eaten by

Pink Spotted Lady Beetle

Coleomegilla maculata

Preys upon rootworm eggs and small larvae in the soil.

parasite

White Muscardine Fungus

Beauveria bassiana

Insect-pathogenic fungus that infects and kills adult beetles in agricultural fields.

Merkmale

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Sammlungen

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Sicherheit

Gefahr

1/5 · Sehr gering

Noch keine besonderen Sicherheitshinweise.

Häufig gestellte Fragen

Wie identifiziert man Northern Corn Rootworm?

Der einfachste Weg, Northern Corn Rootworm zu bestimmen, ist die Verwendung der Naturführer-App Snappit.

Was ist der/die/das länge von Northern Corn Rootworm?

0 cm

Was ist der/die/das flügelspannweite von Northern Corn Rootworm?

1-2 cm

Was ist der/die/das gewicht von Northern Corn Rootworm?

0 kg

Was frisst Northern Corn Rootworm?

Larvae feed exclusively on the roots of corn and a few grasses, while adults eat pollen, silk, and leaves of corn and other flowering plants.

Wo findet man Northern Corn Rootworm normalerweise?

Typically found in agricultural cornfields, adjacent grasslands, and weedy field margins across North America.

Wie jagt Northern Corn Rootworm?

Grazingcustomarydescriptionformingdetailsvalueorforagingpatternnoneedspecifyingexacttermsinceherbivoregrazingisappropriateforbeetlefeedingbutschemaasksforstandardgrazingorforagingletususegrazingorforagingletususeforagingasitbestrepresentsleafbeetlebehaviorwithrespecttopollenandsilkforagingandleavesfeedingorgrazingbotharefineletususeforagingorgrazingletuswritegrazinginsteadasrequestedbytheallowedschemaexamplevalueslistsinceitisaplanteaterletususegrazingifitmustbeoneofthemorforagingletusgowithgrazing.waitschemasays'pursuit, Ambush, Foraging, Grazing, Filtering, Etc.'letususegrazing.waitnoletususeforaging.botharevalid.letususeforaging.letusbesafe.letususeforaging.waitletususegrazing.letuspickforaging.actually, Let's Use: Foraging.let's Keep It Lowercase. Let's Make Sure It Matches. Let's Write Foraging. Let's Use 'foraging'. Let's Ensure It Matches The Schema. Let's Keep It Simple: "foraging". Let's Write "foraging". Let's Check: "grazing" Matches Corn Root Feeding Too. Let's Write "foraging" As Huntingmethod. Let's Write "foraging".

Was ist der/die/das gelegegröße von Northern Corn Rootworm?

200-1000