The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Rice Weevil

(Calandra, or Sitophilus, oryzae), a beetle of the family Curculionidae; a dangerous pest of grain, mainly rice and grain products. The body is 2-3.5 mm long and brown in color. Native to India, the rice weevil spread with rice through the entire globe. In the USSR it does the greatest damage in the Caucasus, Ukraine, and the republics of Middle Asia. The insect usually inhabits warm granaries but is also found in the fields (Caucasus). The rice weevil yields as many as seven generations in a year. Both the adults and the larvae are destructive, feeding on rice, rye, wheat, barley, corn, buckwheat, husked millet, and oats, as well as on products obtained from these grains. Grain damaged by the rice weevil is marked by a decrease in weight, nutritional value, and seed quality.

For a discussion of control measures seeCROP PESTS.

Mentioned in

Grain and Grain Products Pests

References in periodicals archive

tabacum was highly lethal to a lesser grain borer (17.33+-1.19SE) and rice weevil (15.33+-0.90SE) after 72 h.

Commercial Fumigant Fitness and Bio-Pesticides Potential against Resistant Strains of Quarantine Insect Pests

Microstructure of mandibulate mouthparts in the greater rice weevil, Sitophilus oryzae (Coleoptera: Curculionoidae).

SHORT COMMUNICATION - INSIGHTS INTO THE FUNCTIONAL POTENTIAL OF THE RICE WEEVIL ROSTRUM BASED ON MICROSTRUCTURE

anisopliae and DE product Protect-It[TM] against the rice weevil is in agreement with previous works (Kavallieratos et al.

Eficacia de Metarhizium anisopliae combinado con tierra de diatomeas contra Sitophilus oryzae (Coleoptera: Curculionidae) en condiciones de laboratorio

The rice weevil (A), lesser grain borer (B) and red flour beetle (C) were selected by the majority of survey respondents as insects causing problems in stored rice.

Survey of rice storage facilities identifies research and education needs

The aim of this research was to evaluate the temperature significance on the effectiveness of selected biorational insecticides against the rice weevil in wheat grains.

Short Communication - Effect of Temperature on the Toxicity of Biorational Insecticides against Sitophilus oryzae (Linnaeus) in Stored Wheat

Relative susceptibility of some sorghum varieties to the rice weevil, Sitophilus oryzae L.

Estimation of Losses in Some Advanced Sorghum Genotypes Incurred by Red Flour Beetle, Tribolium castaneum L. (Herbst.) (Tenebrionidae: Coleoptera)

thapsus extracts were studied for insecticidal activity using red flour beetle (Tribolium castaneum), its larvae and rice weevil (Sitophilus oryzae) at doses 1, 5, 10, 25, 50, 75, and 100 mg of extract.

Anthelmintic and Insecticidal Activities of Verbascum thapsus L

Laboratory bioassays were carried out to examine the toxicity and repellency of a crude methanol extract of Duabanga grandiflora against adult rice weevil, Sitophilus oryzae.

Toxicity and Repellency Activities of the Crude Methanol Extract of Duabanga grandiflora (Lythraceae) Against Sitophilus oryzae (Coleoptera: Curculionidae)

In either case, damage to stored grain by the lesser grain borer, rice weevil, red flour beetle, and rusty grain beetle costs the U.S.

Elevating Grain Storage Practices

The chairperson of the House of Representatives committee on agriculture and food on Monday labeled as 'irresponsible' the National Food Authority's (NFA) claim that the sacks of rice infested with rice weevil (bukbok) are still safe for consumption after fumigation.

Rice with 'bukbok' safe to eat after fumigation? Solon finds NFA's claim 'irresponsible'

They have used these extracts to control the most common stored-product insects--the rice weevil, lesser grain borer, sawtoothed grain beetle, and red flour beetle.

Natural Plant Extracts Might Sub for Methyl Bromide

The National Food Authority (NFA) on Sunday clarified that the sacks of rice infested with rice weevil (bukbok) are still safe for consumption once the fumigation process is done.

Rice with 'bukbok' safe for consumption after fumigation - NFA