The khapra beetle, Trogoderma granarium Everts

Lindgren, D; Vincent, L; Krohne, H

The khapra beetle, Trogoderma granarium Everts

Authors

David L. Lindgren
Lloyd E. Vincent
H. E. Krohne

Authors Affiliations

David L. Lindgren was Entomologist, Citrus Experiment Station, Riverside, California; Lloyd E. Vincent was Principal Laboratory Technician in Entomology, Citrus Experiment Station, Riverside, California; H. E. Krohne was Senior Laboratory Technician, Citrus Experiment Station, Riverside, California.

Publication Information

Hilgardia 24(1):1-36. DOI:10.3733/hilg.v24n01p001. August 1955.

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Abstract

The khapra beetle, Trogoderma granarium Everts, a serious pest of stored grains and other food products in India and elsewhere, has recently been found in 23 counties of California, Arizona, and New Mexico. It thrives on hot, dry conditions and has proved exceptionally difficult to control. The State Department of Agriculture is conducting an eradication program against it in California.

Studies have been conducted on factors affecting the development of this beetle and on its climatic adaptation, and tests have been carried out to find more effective control measures. The following are the principal results to date.

An increase in temperature from 70°F to 93°-95° decreased the average length of a generation from 220 days to 26 days; light conditions had little effect on it. At 90° egg viability averaged 94 per cent, and 93 eggs were laid per female. The length of a generation varied widely on different foods.

A few larvae survived exposures of 240 minutes to -6°F and of 51 days to temperatures fluctuating daily between 25° and 48°. Eggs and pupae were more susceptible. To obtain a 95 per cent kill (at 50 per cent relative humidity) required 960 minutes for larvae and 420 minutes for pupae at 118°, 8 minutes for both stages at 131°. These findings indicate that the species is capable of becoming a pest of grain stored in piles or sacks in the field in such ellmctes as that of Imperial Valley, California.

Among ten fumigants tested (at 70°F and with 2-, 8-, and 24-hour exposures), hydrocyanic acid and acrylonitrile were the most toxic to khapra-beetle larvae and pupae. Eggs were more susceptible than the other immature stages to the majority of these fumigants. Hydrocyanic acid was the only one tested to which all three immature stages of the khapra beetle were more susceptible than granary-weevil adults. Fumigation for 12 hours with methyl bromide, hydrocyanic acid or acrylonitrile showed little evidence of reduced seed germination when moisture content of seed was less than 10 per cent.

Khapra-beetle larvae were more resistant to wheat treated with a piperonyl butoxide-pyrethrin dust mixture or with a malathion dust than were the adults of the granary weevil, rice weevil, and lesser grain borer.

Bibliography

Allen Paul, Linsley E. G. Proceedings Pacific Coast Entomological Society. Pan-Pacific Ent. 1954. 30(1):89-90.

Anonymous. Notes on insect pests. Bur. Bio-Technol., Leeds., Bul. 1921a. 3:79-82. Abstracted inRev. Appl. Ent., ser. A, 9: 431

Anonymous. Quarantine proclamation No. 82. Extract from Commonwealth Austral. Gaz. 1921b. 43:354 Abstracted in: Rev. Appl. Ent., ser. A, 9:

Anonymous. The Khapra beetle, a new cereal pest in Germany. Deut. Pflanzenschutzdienst Nachrichtenbl. 1922a. 2(1):4-5. Abstracted inRev. Appl. Ent., ser. A, 10: 258

Anonymous. Memorandum issued by the Ministry of Agriculture and Fisheries. Bur. Bio-Technol., Leeds., Bul. 1922b. 5:132-33. Abstracted inRev. Appl. Ent., ser. A, 10: 296

Armitage H. M. 34th annual report. California Dept. Agr. Bul. 1953. 42(4):199-233.

Armitage H. M. Current insect notes. California Dept. Agr. Bul. 1954a. 43(1):41-43.

Armitage H. M. Current insect notes. California Dept. Agr. Bul. 1954b. 43(3):134-36.

Arrow G. J. The Khapra beetle (Trogoderma khapra, sp. n.), an Indian grain pest. Ann. and Mag. Nat. Hist. 1917. 19(114):481-82. Abstracted inRev. Appl. Ent., ser. A, 5: 359

Barnes J. H., Grove A. J. The insects attacking stored wheat in the Punjab, and the methods of combating them, including a chapter on the chemistry of respiration. India Dept. Agr. Mem. 1916. 4(6):165-280.

Beal Richard S. Jr. Biology and taxonomy of the nearctic species of Trogoderma. Univ. California Pubis. Ent. 1954. 10(2):35-102.

Bedwell E. C. Dermestid beetles attacking wood. Ent. Monthly Mag. 1931. 67(803):93-94. Abstracted inRev. Appl. Ent., ser. A, 19: 404

Bhasine H. Dass. Air-tight storage of grain. 1924. 12:384 5th Ent. Meeting, Pusa, February, 1923, Rept. Proc. pp. 228-37. Calcutta, 1924. Abstracted in: Rev. Appl. Ent., ser. A

Champion G. C. Note on Trogoderma granarium Everts (T. khapra, Arrow) and T. tricolor. Arrow. Ent. Monthly Mag. 1923. 59:111 London. Abstracted inRev. Appl. Ent., ser. A, 11: 299

Chernuishex P. K. [The manner of increasing the efficiency of fumigation against stored pests]. [Leningrad] Inst. Zasch. Rast. (Lenin. Acad. Agr. Sci., U.S.S.R., Inst. Plant Protect.). Trudy po Zasch. Rast. (Bul. Plant Protect.). 1940. 1940(4):67-69. Abstracted inRev. Appl. Ent., ser. A, 30: 298

Chopra R. L. Annual report of the Entomologist to the Government, Punjab, Lyallpur, for the year 1925-26 1928. pp.67-125. Punjab Dept. Agr. Rpt., 1925-26, pt. 2, vol. i, Abstracted inRev. Appl. Ent., ser. A, 16:419-421

Cotes E. C. Miscellaneous notes from the Entomological Section. Indian Mus. Notes. 1894. 3(3):110-41. See specifically p. 119. Cited byBarnes and Grove (1916)

Dendy A., Elkington H. D. Report on the effect of air-tight storage upon grain insects. Part II. Royal Society London, Grain Pests (War) Com. Rpt. 1918. 3:3-14. Abstracted inRev. Appl. Ent., ser. A, 7: 94

Durrant J. H. Insects associated with grain, etc. Royal Society London, Grain Pests (War) Com. Rpt. 1921. 9:33-52. Abstracted inRev. Appl. Ent., ser. A, 10: 106-7

Everts Ed. J. G. Coleoptera Neerlandica. 1898. 3:618 See specifically vol. 1, note 2, M. Nijhoff’s Gravenhage DOI: 10.5962/bhl.title.9078 [CrossRef]

Fletcher T. B. Report of the Imperial Entomologist. Agr. Res. Inst. Calcutta. 1919-. 1920. 20:68-94. Sci. Rpts. Abstracted inRev. Appl. Ent., ser. A, 9: 210-11

Fletcher T. B., Ghosh C. C. Stored grain pests. 1919. 9:78 3d Ent. Meeting, Pusa (Calcutta) Rpt. Proc. ii, pp. 712-61. Abstracted in: Rev. Appl. Ent., ser. A

Freeman J. A. Pest infestation control in breweries and maltings. Inst. Brewing Jour. 1951. 57(5):326-37. Abstracted inRev. Appl. Ent., ser. A, 40: 66-67 DOI: 10.1002/j.2050-0416.1951.tb01631.x [CrossRef]

Froggatt W. W. “Khapra”, an Indian wheat pest. Agr. Gaz. N.S. Wales. 1921. 32(1):21-23. Abstracted inRev. Appl. Ent., ser. A, 9: 218

Harper R. W. Khapra beetle and Mexican fruit fly. California Dept. Agr. Bul. 1955. 44(1):17-28.

Hayward L. A. W. The field fumigation of groundnuts in bulk. Jour. Sci. Food and Agr. 1954. 5(4):192-94. DOI: 10.1002/jsfa.2740050406 [CrossRef]

Herford G. V. B. The infestation of stored foodstuffs by insects. Jour. Sci. Food and Agr. 1952. 1:1-11. DOI: 10.1002/jsfa.2740030101 [CrossRef]

Hewlett P. S. Insecticidal synergism with valone. Nature. 1954a. 173(4394):132 DOI: 10.1038/173132a0 [CrossRef]

Hewlett P. S. A micro-drop applicator and its use for the treatment of certain small insects with liquid insecticide. Ann. Appl. Biol. 1954b. 41(1):45-64. DOI: 10.1111/j.1744-7348.1954.tb00915.x [CrossRef]

Hinton H. E. A monograph of the beetles associated with stored products. 1945. 1: London: British Museum. 443p.

Howe R. W. Entomological problems of food storage in northern Nigeria. Bul. Ent. Res. 1952. 43(pt. 1.):111-44. DOI: 10.1017/S0007485300030649 [CrossRef]

Howe R. W., Hayward L. A. W., Cotterell G. S. Control measures in 1948-50 against insects attacking groundnuts stored at Kano, northern Nigeria. Bul. Ent. Res. 1952. 43(pt. 2):259-79.

Husain M. A., Bhasine H. D. Preliminary observations on lethal temperatures for the larvae of Trogoderma khapra, a pest of stored wheat. 1921. 10:180 4th Ent. Meeting, Pusa (Calcutta), Rpt. Proc. pp. 240-48. Abstracted in: Rev. Appl. Ent., ser. A

Isaac P. V. Report of the Imperial Entomologist. Agr. Res. Inst. New Delhi Sci. Rpt. 1946. 1944-45:73-79. Abstracted inRev. Appl. Ent., ser. A, 37: 27

Janisch E. The morphological appearances of age in insects and their importance as regards control from a physiological standpoint. Naturwissenschaften. 1923. 47:929-31. Abstracted inRev. Appl. Ent., ser. A, 12: 190

Krishnamurti B. Some simple means of keeping food grains in storage free from insect infestation and damage. Mysore Agr. Jour. 1943. 22(2):40-45. Abstracted inRev. Appl. Ent., ser. A, 35: 15-16

Lal K. B. Insect pests of stored grain in the United Provinces and their control. 1944. 34:Allahabad (Dept. Agr. U.P.). 325p. 9p. 1 pl. Abstracted in: Rev. Appl. Ent., ser. A, 26

Lepesme P. Sur le regime et l’importance economique de quelques Trogoderma (Coleoptera Dermestidae). Rev. Franç. d’Ent. 1938. 5(fasc. 2):104-6. Abstracted inRev. Appl. Ent., ser. A, 27: 196

Lindgren David L., Vincent Lloyd E. Nitidulid beetles infesting California dates. Hilgardia. 1953. 22(2):97-118. DOI: 10.3733/hilg.v22n02p097 [CrossRef]

Lindgren David L., Vincent Lloyd E., Krohne H. E. Khapra beetle in California. California Agr. 1954. 8(9):7-15.

Lindgren David L., Vincent Lloyd E., Krohne H. E. Khapra beetle control studies. California Agr. 1955. 9(3):8-9.

Madel W. Vorratsschadlinge. (Pests of stored products.) Verh. 7th Internatl. Kongr. Ent. 1939. 33:2856 228-30 Berlin, 1938, Verhandl. 4, pp. 2747-926. Weimar, 1939. Specifically: Drogenschadlinge (Pests of drugs), 62 Abstracted in: Rev. Appl. Ent., ser. A

Mansbridge G. H. A note on the resistance to prolonged cold of some insect pests of stored products. Roy. Ent. Soc. London Proc., ser. A. 1936. 11(pt. 6-12):83-86. Abstracted inRev. Appl. Ent., ser. A, 25: 205 DOI: 10.1111/j.1365-3032.1936.tb00877.x [CrossRef]

March Ralph B., Metcalf R. L. Laboratory and field studies of DDT resistant houseflies in southern California. California Dept. Agr. Bul. 1949. 38(2):93-101.

Mason F. A. The destruction of stored grain by Trogoderma khapra, Arrow. A new pest in Great Britain. Bur. Bio-Technol., Leeds, Bul. 1921. 2:27-38. Abstracted inRev. Appl. Ent., ser. A, 9: 143

Mason F. A. The Khapra beetle in British maltings. Bur. Bio-Technol., Leeds, Bul. 1924. 2(13):118-23. Abstracted inRev. Appl. Ent., ser. A, 13: 91

Miles H. W. Investigations on the control of the Khapra beetle (Trogoderma granarium, Everts) with calcium cyanide. Bul. Ent. Res. 1928. 18(pt. 3):251-55.

Morison G. D. The Khapra beetle (Trogoderma granarium, Everts). Roy. Phys. Soc. Edinb., Proc. 1925. 11(1):10-13.

Munro James Watson. Report on a survey of the infestation of grain by insects. 1940. London: H. M. Stationery Office. viii + 54p. Cited by Hinton (1945)

Nakayama Shonosuke. On the ecology, and especially the moults, of Trogoderma granarium Everts. Oyo-Dobutsugaku Zasshi. (Jap. Soc. Appl. Zoöl.). 1932. 4(3):150 Abstracted inRev. Appl. Ent., ser. A, 20: 605

Nakayama Shonosuke. Biological studies on the dermestid beetle, Trogoderma granarium Everts. Chosen Govt.-Gen., Agr. Expt. Sta. Jour. 1933a. 18:1-23. Abstracted inRev. Appl. Ent., ser. A, 21: 149

Nakayama Shonosuke. Biological studies on the dermestid beetle, Trogoderma granarium Everts. Fifth Pacific Sci. Cong. Proc. 1933b. 5(Canada):3573-75.

Nasir Maqsud M. Recent work on mercury as an insecticide against insect pests of stored grain. Bul. Ent. Res. 1949. 40(pt. 2):299-304. Abstracted inRev. Appl. Ent., ser. A, 37: 410 DOI: 10.1017/S0007485300024561 [CrossRef]

Nasir M. M. DDT, 666 and insect pests of stored grains. Current Sci. 1946. 15:98-99.

Okumura G. T., Blanc F. L. Key to species of Trogoderma and to related genera of Dermestidae commonly encountered in stored grain in California. California Bur. Ent. Insect Identification Laboratory 1955.

Oosthuizen M. J. The effect of high temperature on the eonfused flour beetle. Minnesota Agr. Exp. Sta. Tech. Bul. 1935. 107:1-45.

Oxley T. A. Grain storage in east and central Africa 1950. p.iv. + 43. Report of a Survey (Oct., 1948 to Jan., 1949). Colon. Res. Publ. 5. 20 pl. Abstracted inRev. Appl. Ent., ser. A, 40: 260-61

Padget L. J. Status of Khapra beetle in western states, spring 1954. Coop. Econ. Insect Rpt. 1954. 4(25):557-62.

Parker T. The suppression of insect pests and fungoid diseases. I. The fumigation of malt-houses. Bur. Bio-Technol., Leeds, Bul. 1922. 7:229-34. Abstracted inRev. Appl. Ent., ser. A, 11: 34-35

Parker T., Long A. W. A laboratory note on the control of Trogoderma khapra. Bur. Bio-Technol., Leeds, Bul. 1921. 4:102-4. Abstracted inRev. Appl. Ent., ser. A, 10: 32

Parkin E. A. The toxicity of certain aliphatic chlorinated hydrocarbons to Calandra granaria L. and other insects infesting grain. Ann. Appl. Biol. 1946. 33(1):97-103.

Parkin E. A. The susceptibility to DDT dust of Coleoptera infesting stored products. Bul. Ent. Res. 1953. 44(pt. 3):439-44. DOI: 10.1017/S0007485300025554 [CrossRef]

Pingale S. V., Narayana Rao M., Swaminathan M. Effect of insect infestation on stored grain. I. Studies on soft wheat. Jour. Sci. Food and Agr. 1954. 5(1):51-54. DOI: 10.1002/jsfa.2740050108 [CrossRef]

Pradhan S., Nair M. R. G. K., Krishnaswami S. Lipoid solubility as a factor in the toxicity of contact insecticides. Nature. 1952. 170:619 DOI: 10.1038/170619a0 [CrossRef]

Pruthi Hem Singh, Singh Mohan. Pests of stored grain and their control. Indian Jour. Agr. Sci. Spec. No. 1950. 18(4):1-88.

Rahman Khan A. Insect pests of stored grains in the Punjab and their control. Indian Jour. Agr. Sci. 1942. 12(part IV):564-87.

Rahman Khan A., Singh Sohi Gurcharn. Observations on the reactions of the dermestid beetle Trogoderma khapra Arr. to light. Indian Jour. Ent. (pt. 1). 1939. 1-2:57-63.

Rahman Khan A., Singh Sohi Gurcharn. Mercury as a preventive against stored grain pests. Bul. Ent. Res. 1946. 37(pt. 1):131-41. Abstracted inRev. Appl. Ent., ser. A, 34: 296-97 DOI: 10.1017/S0007485300022069 [CrossRef]

Rahman Khan A., Singh Sohi Gurcharn, Nath Sapra Amar. Studies on stored grain pests in the Punjab. VI. Biology of Trogoderma granarium Everts. Indian Jour. Agr. Sci. 1945. 15(part II):85-92.

Sohi Gurcharn Singh. Studies on stored grain pests in the Punjab. VIII. Effect of constant light and darkness on the development and reproduction of and amount of food consumed by Trogoderma granarium Everts. Indian Jour. Ent. 1947. 19(part II):143-47.

Taylor H. S. The Khapra beetle: its influence on the moisture content of malt in store. Bur. Bio-Technol., Leeds, Bul. 1924. 2(13):113-17. Abstracted inRev. Appl. Ent., ser. A, 13: 90-91

Uyttenboogaart D. L. Further descriptions of Trogoderma granarium, versicolor. Ent. Ber. 1938. 10:40-42.

Van Poeteren N. [Report on the work of the phytopathological service in the year 1923]. Verslag. en Meded. Plantenziektenkund. Dienst Wageningen. 1925. 34:66 3 pls. Abstracted inRev. Appl. Ent., ser. A, 13: 211-12

Vayssiere P., Lepesme P. Un dangereux parasite des grains emmagasines, Trogoderma granarium Everts. Agron. Colon. 1938. 243:65-71. Abstracted inRev. Appl. Ent., ser. A, 26: 501

Voelkel H. A contribution to the biology and control of the Khapra beetle. Biol. Reichsanst. f. Land u. Forstw. Arb. 1924. 13(2):129-71.

Zacher F. Eingeschleppte Vorratsschädlinge. (Imported pests of stored products.) Deut. Gesell. f. Angew. Ent. Verhandl. 3. Mitgliederversammlung zu Eisenach. 1922. 28 bis 30:55-59. Abstracted inRev. Appl. Ent., ser. A, 11: 130-31

Zacher F. The Khapra beetle, a new pest of cereals, malt and pulses. Marktber. Hansablum. 1926. 214:8-10. suppmt.: Abstracted inRev. Appl. Ent., ser. A, 14: 599

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