Grain Beetle

Grain Beetle


(Anisoplia austriaca), a beetle of the family Scarabaeidae; a dangerous pest of grain crops. Body length, 12-16 mm. The head, pronotum, abdomen, and legs are black; the wing cover is dark chestnut with a rectangular black spot near the scutellum and a dark line along the suture.

Grain beetles are found in Europe, Asia Minor, and Iran; in the USSR they live in the steppes and the forest steppes of the European part. The life cycle lasts two years. The larvae live in the soil, feeding on humus and the plant roots. At the end of May, the larvae that have survived two winters enter the pupal stage. In late June the mature beetles come out of the soil (feeding on unripened grains of rye, wheat, and barley) and infest winter grains and then spring grain plantations. Ten to 12 days after her appearance, the female lays up to 50 eggs; the larvae emerge in three weeks. Grain beetles are heliophilous; they ap-pear on plants in the morning and hide in clumps of earth and cracks in the soil at night. They are most active in sunny weather. Grain beetles cause extensive damage in the lower and middle Trans-Volga region, the steppes of the Ukraine, the northern Caucasus, and the Trans-Caucasus.

Control measures include cultivation of the soil before planting, deep cultivation of furrows in late May and early June, interfurrow harrowing of intertilled crops, hulling after threshing, separate harvesting of wheat at the beginning of waxen ripeness (since the beetle does not harm the grain when it is in windrows), and spraying planted crops with insecticides.


Grivanov, K. P., and M. I. Dmitrieva. Khlebnye zhuki. Saratov, 1963.


References in periodicals archive ?
a) Larger Grain Borer (Prostephanus Truncatus) b) Angoumois Mouth (Sitotroga Cerealella) c) Khapra Beetle (Trogoderma Granarium) d) Lesser Grain Borer (Rhizopertha Dorminica) e) Grain Weevils (Sitophil Granaries) f) Red Floor Beetle (Tribolium Castaneum) g) Saw Toothed Grain Beetle (Oryzaephilus Surinamensis) h)The Grain has been fumigated through Phsophine (Mention Dose) for minimum period of 120 hrs i) Parent Crop was field inspected during active growth and found free Tilletia Indica, the seed and weeds have also been laboratory tested.
Effects of cold-acclimation on supercooling and survival of the rusty grain beetle, Cryptolestes ferrugineus (Stephens) (Coleoptera: Cucujidae), at subzero temperatures.
Whereas, sawtoothed grain beetle and flat grain beetle described as the 'external feeders' because they feed on grain dust and debris without entering the kernel.
Among the more important pests are the granary weevil, rice weevil, lesser grain borer, Angoumois grain moth, confused flour beetle and the saw-toothed grain beetle.
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Haq, Relative susceptibility of some varieties of wheat to khapra beetle and brown grain beetle during storage.
Comparitive evaluation of the harmful activity of the grain beetle, the wheat weevil and the rice weevil.
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There are even more dangerous pests, such as the saw-toothed grain beetle, warehouse beetle, and rare but serious pests like the Khapra beetle.
Insects such as the lesser grain borer, the red flour beetle, and the rusty grain beetle not only devour vast amounts of stored grain, but add insult to injury by defecating on the kernels, triggering the growth of fungi and molds such as Fusarium and Aspergillus.
The rusty grain beetle is the most economically important insect pest of stored grain in Canada.