Proceedmqe of the 7th International Workmg Conference on Stored-product Protection - Volume 1

List of associated with stored commodities in Vietnam

Bm Cong Hlenl

Abstract ( 1943 ), Zagunaev (1965), Thai Bang Hoa (1966), Weidner (1982) and Doble et al (1985) Even though the Lepidoptera associated with stored commodities IS one of the major stored pests, the studies on this field m Viet Nam ISstill Iimited The results Results of our study from 1979 to 1990 Identified 11 vanous species The results of study presented m Table 1 showed that the belonging to 5 farmhes of Lepidoptera Their distnbution IS associated WIthstored commodities m VIetnam belong different and usually depends upon the commodities, the to 5 farruhes With 11 vanous species The number of species location and the types of storage ISmaximum m storage of ammal food With 10 species, while m storage of cereals there are 6 species, 4 species occur m storage of pharmaceutical herbs, 3 species develop m stored pulses or other agncultural products, only 2 species present m factones of gram production and 6 species aSSOCIateWith Introduction stored dned ammal products In Table 1 also pointed out that there are some species can After Coleoptera, Lepidoptera has being considered as the infest and develop m most of commodities such as tropical second major stored insect pests Indeed, many stored warehouse (Ephestm cauiella (Walker», rice moth mdustnal or agncultural products may be Infested by vanous (C,fJrcyra cephalomCG (Stamton ) and tropical tobacco moths , The damage ISamount 15%, sometimes 30 - 35 % moth (Setmnopha rutella Zeller) On the other hand, or much more Doble et al (1985) recorded that m recent some species can only distribute m one kind of goods such as 20 years the damage caused by Lepidoptera has been angiomas gram moth (Sdotroga cerealella (Ohv » was mcreasmg m tropical countries Nevertheless the studies on only found m stored paddy or species casemakmg clothes months associated With stored commodities m Vietnam IS moth (Tmea pellumalla Zeller) and Tnchophaga still limited, not approximately WIth their role m practice abricptella Woll only develop m storage of feed and dned As a further contribution to study on stored product msect ammal products The meal moth (Pyralts fannalw L) pests some excursions at vanous places m Vietnam WIth was collected m stored cereal grams and Hargreaves (1948) different stored commodities were conducted from 1979 to reported that this species damaged the cotton seed m 1990 Uganda, Afnca The results of study also demonstrated that the Materials and Methods differences of distnbution and the development of population of the moths depend upon to the types of storage, the kmd The collectmg of the specimen were earned out during the of commodities and the locations m Vietnam For example, surveys m different storage m the Northern and Southern of the Indian meal moth CPloiu: mierpunciella (Hubner» Vietnam The studied commodities are cereals such as developed very well m long term stored maize in the paddy, mIlled nce, maIze, dned cassava, pharmaceutical Northern VIetnam, willie this species couldn't be found m herbs, textile, ammal food and dned ammal products such as stored maIZem Tay Nguyen Plateau (Southern Vietnam) feather of chIcken and duck Perhaps some species have got the hfe m the fIeld, The morpholOgical characters of the adult and also of because the angIOmas gram moth and the meal moth have female and male gemtaha of the moths were often used for been found m the field short time before harvest ThiS the Identification problem unfortunately, has not yet been studied m detaIls The Identification of specIes are based on these m Vietnam hteratures Corbet and Tams (1943), Hmton and Corbet Discussion IDepartment of Entomology, Faculty of Biology, HanoI Umverslty, 19 Le Thanh Tong, HanOI, Vletnanl The Table 2 pomted out that 17 species belong to 6 vanous 69 Proceedmae of the 7th Iniernatumal Worktng Conference on Stored-product Protectwn - VolumE 1 farruhes of Lepidoptera associated With stored commodities m similar) The family Blastobasidae With two spicies Southeast Asia region But only 3 species Corcyra BlastobastS ochromarpha (Meyn) and BlastobastS sp cephaloruca (Stamton) Sttotroga cerealella (Ohv ) and were only found m Thailand, while 5 species of family Ephestw cautella (Walker) were found m whole region (m Tmeidae were determmed m Vietnam, but m Thailand only Vietnam, Thailand and other ASEAN member countries) It 1 species and 2 species mother ASEAN countries This seem to be that there are more species Similar between difference IS a problem that should be consider m further Vietnam and other ASEAN member countries (7 species studies With cooperative reseach work of the specialists on Similar) than between Vietnam and Thailand (only 3 species this field

Table 1. The species of Lepidoptera associated With commodities m Vietnam

Family Species 1 2 3 4 5 6 Gallemdae Corcyra cephalontca (Stamton) + + + + + Gelecludae Sttotroga cerealella (Ohv ) + +? Phycitidae Epheeuo. cauteua (Walker) +++ +? + + Pyrahdae Paralipea qularu: (Zeller) + Ploiui mterpunciella (Hubner) ++ PyraltS fannaltS L ++ + Tmeidae MonophtS monacella (Hubner) + + Setomorpha rytella Zeller +++ + + Tinea pellwnella L + + Tmeola btSsellwlla Hummel + + Tnchophaga abruptella Woll + + Key 1 stored cereal grams 2 food 3 stored pulses and other agricultural products 4 factory of gram production 5 stored pharmaceutical herbs' 6 stored feather of chicken and duck

Table 2. List of Lepidoptera Associated With Stored Commodities of Vietnam, Thailand and Other ASEAN Countries

Family Species Vietnam Thailand ASEAN Countries Blastobasidae BlastobastS ochromarpha (Meyn) + BlastobastS sp + Gallemdae Corcyra cepnalonica (Stamton) +++ Geleclndae Sttotroga cerealella (Ohv ) +++ Phycrtidae Ephestw cautella (Walker) +++ Ephestw elutella (Hubner) + Ephestta kuehmella Zeller + Pyrahdae Doloessa tnruus (Zeller) + + Paraltpsa gularw (Zeller) + Ploiui interpumciella (Hubner) + + PyraltS farmaus L + + Tmeidae Melastna sp + MonophtS monacella (Hubner) + Setomorpha rutella Zeller + + Tinea pellumella L + + Tuieola btSsellwlla Hummel + Tnchophaga abruptella Woll +

70 Proceedmqe of the 7th Iniernaiumal Worktng Conference on Stored-product Proiecium - Volume 1

In recent results of studies on stored product m Identification of Lepidoptera Infesting Stored Food Thailand, , NakakIta et al (1991) recorded that the Indian Products Proc Zoo Soc , Senes B 113, 55 - 148 meal moth (Plodw interpuncielui (Hubner ) ) occurred Doble, P , Hames, C P , Hodges, R J and Prevett P F very few m Thailand, while this species are Widely 1985 Insects and Arachnids of Tropical Stored their distribution m the Northern of Vietnam or m Philippines and Biology and Identification (A Trammg Manual) Tropical Of course the infestation and the development of Development and Research Institute, U K population of Lepidoptera species associated With stored Hargreaves H 1948 List of Recorded Cotton Insects of commodities should depend upon more different factors such the World Commonwealth Institute of Entomology, U K as their ecological potential, the kmd of goods and the types Hinton, H E and Corbet, A S 1943 Common Insect of storage or the methods of commodities preservation etc Pests of Stored Food Products - a GUide to their There IS a need that the Identification or other research on Identification Bnt Mus (Nat Hist) Economic Series Lepidoptera m storage should be considered the number of No 15, 6th Edition 1990 specimen, the season of collectmg and the sources of the Nrlpamt, P and Sukprakarn C 1991 Pest of Stored literature Therefore, It needs to get a Center of collection Products and their Control m Thailand Symp Pests of of stored product insects and the exchanging of specimen and Stored Products, 29 - 31 January, 1991, Bogor, other mformation between researchers of the countries in Indonesia Southeast Asia m the future Semple, R L 1985 Problems Relating to Pest Control and Use of Pesticides m Gram Storage the Current Situation m Acknowledgements ASEAN and Future Requirements Pesticides and Hurmd Tropical Gram Storage Systems, ACIAR Proceedings No I gratefully acknowledge the oSW organization (Germany), 14,45-75 Mr Heinz F Dressel and Mrs Buhler for providmg financial Sukprakarn C 1985 Pest Problems and the Use of support Pesticides m Gram Storage m Thailand Pesticides and I am pleased to thank my Thai colleagues Mr Sukprakarn Humid Tropical Gram Storage Systems, ACIAR C , Chief of Stored Product Insect Research Laboratory, Proceedings No 14,31-35 Department of Agriculture, Dr Kirtibutr N ,Dr Tauthong Thai Bang Hoa 1966 Stored Insect Pests m Chma Beijing P ,Dr Poramarcom R and Dr Sarnthoy 0,Department Press of Entomology Faculty of Agnculture , Kasetsart Weidner, H 1982 Bestimmungstabellen der University, for their kind help dunng my working penod m Vorratsschadhnge und des Hausungeziefers Mitteleuropas Thailand VEB Jena Verlag My thanks are due to my Wife whose long-suffering patience and support has made this work

References

Corbet A S and Tams, W H T 1943 Keys for the

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