Biological traits and life history of Pagiophloeus tsushimanus (Coleoptera: Curculionidae), a weevil pest on camphor trees in China

Abstract

Cinnamomum camphora (L.) J. Presl. (Laurales: Lauraceae) is widely cultivated as an important landscape tree species in many urban areas in South China, especially in Shanghai City. Pagiophloeus tsushimanus Morimoto has become a destructive insect pest of C. camphora plantations in Shanghai, but the biological and ecological traits of this pest remain largely unknown. In this study, we investigated the damage and life history and determined the larval instar of P. tsushimanus. The results indicated that P. tsushimanus is a monophagous weevil pest, and C. camphora is the unique host tree species. C. camphora plantations in all administrative districts of Shanghai have been seriously damaged by P. tsushimanus. Adults often aggregate for feeding on the tender bark of twigs and occasionally on newly emerged buds. After experiencing damage, the twigs shrink and crack and the buds will shrink. Adults tend to repeatedly mate and oviposit, and all females lay single eggs at a time. Eggs will be covered with a mixture of secretions and wood chips by female adults. Larvae (1st–2nd instar) feed on the phloem, while 3rd–5th instar can bore into the phloem and the cambium. Massive tunnels, including three shapes (inverted “L”, inverted “T”, and inverted “Z”), were observed in the trunk of each tree, and resulted in swelling of the outer bark. P. tsushimanus has one life cycle per year in Shanghai. Both adults and larvae (3rd–5th instar) overwinter from early November to early April. Adults overwinter in grooves on the underside of branches or at branch nodes, and larvae overwinter in tunnels. Five larval instars of P. tsushimanus were determined according to Dyar's and Crosby's rules. The biological traits and life history of P. tsushimanus have been identified and can provide guidance in terms of pest control and plantation management.

Keywords

Cinnamomum camphora / Damage traits / Life cycle / Dyar's rule / Head capsule width

References

[1] Babu KN, Sajina A, Minoo D, John CZ, Mini PM, Tushar KV, Rema J, Ravindran PN. Micropropagation of camphor tree (Cinnamomum camphora). Plant Cell Tissue Organ Cult, 2003, 74(2): 179-183.

[2] Cazado LE, Van Nieuwenhove GA, Brien CWO', Gastaminza GA, Murúa MG. Determination of number of instars ofRhyssomatus subtilis(Coleoptera: Curculionidae) based on head capsule widths. Fla Entomol, 2014, 97(2): 639-643.

[3] Chen C, Li SL, Zhu H, Fan BQ, Wang Y, Hao DJ. Identification and evaluation of reference genes for gene expression analysis in the weevil pest Pagiophloeus tsushimanus using RT-qPCR. J Asia-Pac Entomol, 2020, 23(2020): 336-344.

[4] Chung AYC, Maycock CR, Khoo E, Hastie A, Kimjus K. New records of insects associated with Bornean endemic dipterocarp seedlings. J Trop For Sci, 2013, 25(1): 5-11.

[5] Crosby TK. Dyar's rule predated by Brooks' rule. N Z Entomol, 1973, 5(2): 175-176.

[6] Cui ZJ, Zhang YL, Zhang X, Luo ZH, Zhang P, Golec J, Poland TM, Zalucki MP, Han P, Lu ZZ. Life history and mortality factors of Agrilus mali Matsumura (Coleoptera: Buprestidae) in wild apples in Northwestern China. Agric For Entomol, 2019, 21: 309-317.

[7] Dallara PL, Flint ML, Seybold SJ. An analysis of the larval instars of the walnut twig beetle, Pityophthorus juglandis Blackman (Coleoptera: Scolytidae), in northern California black walnut, Juglans hindsii, and a new host record for Hylocurus hirtellus. Pan-Pacific Entomol, 2012, 88(2): 248-266.

[8] Delbac L, Lecharpentier P, Thiery D. Larval instars determination for the European grapevine moth (Lepidoptera: Tortricidae) based on the frequency distribution of head-capsule widths. Crop Prot, 2010, 29(6): 623-630.

[9] Dyar HG. The number of molts in lepidopterous larvae. Psyche, 1890, 5: 420-422.

[10] Fan BQ. Control efficacy of using trunk injection method against the larva of Pagiophloeus tsushimanus. For Pest Dis, 2018, 37(3): 50-52. (In Chinese)

[11] Fox RC, Anderson NH, Garner SC, Walker AI. Larval head capsules of the nantucket pine tip moth. Ann Entomol Soc Am, 1972, 65(2): 513-514.

[12] Frampton ER. Determination of the number of larval instars of Sitona discoideus Gyllenhal (Coleoptera: Curculionidae) using probit analysis. N Z J Zoolo, 1986, 13: 107-111.

[13] Gaines JC, Campbell FL. Dyar's rule as related to the number of instars of the corn ear worm, Heliothis obsoleta (Fab.), collected in the field. Ann Entomol, 1935, 28: 445-461.

[14] Gao CQ, RÉDEI D, Shi XQ, Cai B, Ling K, Gao S, Bu WJ. A comparative study of the abdominal trichobothria of Trichophora, with emphasis on Lygaeoidea(Hemiptera: Heteroptera). Eur J Entomol, 2017, 114: 587-602.

[15] Goldson SL, McNeill MR, Proffitt JR, Baird DB. Seasonal variation in larval-instar head-capsule sizes of Argentine stem weevil, Listronotus bonariensis (Kuschel) (Coleoptera: Curculionidae). Aust J Entomol, 2001, 40: 371-375.

[16] Gu TZ, Zhang CC, Su P, Fan BQ, Hao WY, DJ,. Ultrastructure of antennal sensilla of Pagiophloeus tsushimanus Morimoto (Coleoptera: Curculionidae) with scanning electron microscope. J Nanjing For Univ (Nat Sci Edit), 2017, 41(4): 1-6. (In Chinese)

[17] Guo SS, Geng ZF, Zhang WJ, Liang JY, Wang CF, Deng ZW, Du SS. The chemical composition of essential oils from Cinnamomum camphora and their insecticidal activity against the stored product pests. Int J Mol Sci, 2016 17 11 1836

[18] Hammack L, Ellsbury MM, Roehrdanz RL, Pikul JL Jr. Larval sampling and instar determination in field populations of northern and western corn rootworm (Coleoptera: Chrysomelidae). J Econ Entomol, 2003, 96(4): 1153-1159.

[19] Huang JH, Wu SY, Gao L, Yang LJ. Diagnosis and damage of weevil pest Pagiophloeus tsushimanus on camphor tree. J Zhejiang A & F Univ, 2014, 31(5): 764-767. (In Chinese)

[20] Hunt G, Chapman RE. Evaluating hypotheses of instar-grouping in arthropods: a maximum likelihood approach. Paleobiology, 2001, 27(3): 466-484.

[21] Lee S, Lee DW, Boo KS. Sex Pheromone Composition of the Diamondback Moth, Plutella xylostella (L.) in Korea. J Asia-Pac Entomol, 2005, 8(3): 243-248.

[22] Li XW, Li J, Werff H. Flora reipublicae popularis sinicae, 1982, Beijing, China: Science press (In Chinese)

[23] Li SY, Chen C, Li H, Fan BQ, Wang Y, Hao DJ. Effects of feeding on diets containing components of different plants on the development and detoxifying enzyme activities in Pagiophloeus tsushimanus (Coleptera: Curculionidae) larvae. Acta Entomol Sin, 2019, 62(11): 1286-1296. (In Chinese)

[24] Liu L, Zhou Q. Olfactory response of female Bactrocera minax to chemical components of the preference host citrus volatile oils. J Asia-Pac Entomol, 2016, 19(3): 637-642.

[25] Loerch CR, Cameron EA. Determination of larval instars of the bronze birch borer, Agrilus anxius (Coleoptera: Buprestidae). Ann Entomol Soc Am, 1983, 76(6): 948-952.

[26] Logan JA, Bentz BJ, Vandygriff JC, Turner DL. General program for determining instar distributions from head capsule widths: example analysis of mountain pine beetle (Coleoptera: Scolytide) data. Environ Entomol, 1998, 27(3): 555-563.

[27] Luo W, Ji YC, Wen JB. Application of a frequency distribution method for determining instars of Eucryptorrhynchus brandti (Coleoptera: Curculionidae) from several morphological variables. Biocontrol Sci Technol, 2016, 26(10): 1-12.

[28] Mcavoy TJ, Salom SM, Yu B, Ji HL, Du YZ, Johnson N, Reardon R, Kok LT. Occurrence and development of Eucryptorrhynchus brandti and E. chinensis (Coleoptera: Curculionidae) on Ailanthus altissima trees subjected to different levels of mechanical damage. Biocontrol Sci Technol, 2014, 24(1): 65-79.

[29] Mcclellan QC, Logan JA. Instar determination for the gypsy moth (Lepidoptera: Lymantriidae) based on the frequency distribution of head capsule widths. Environ Entomol, 1994, 23(2): 248-253.

[30] Merville A, Vallier A, Venner S, Siberchicot A, Bel-Venne MC. Determining the instar of a weevil larva (Coleoptera: Curculionidae) using a parsimonious method. Eur J Entomol, 2014, 111(4): 567-573.

[31] Morimoto K. The family Curculionidae of Japan. I subfamily Hylobxinae Esakia, 1982, 19: 51-121.

[32] Nenaah GE, Ibrahim SIA. Chemical composition and the insecticidal activity of certain plants applied as powders and essential oils against two stored-products coleopteran beetles. J Pest Sci, 2011, 84(3): 393-402.

[33] Panzavolta T. Instar determination for Pissodes castaneus (Coleoptera: Curculionidae) using head capsule widths and lengths. Environ Entomol, 2007, 36(5): 1054-1058.

[34] Qian H, Song JS. Latitudinal gradients of associations between beta and gamma diversity of trees in forest communities in the new world. J Plant Ecol, 2013, 6(1): 12-18.

[35] Qin QJ, Liu S, Li S, Zhang W, He YZ. Role of photoperiod in the development and reproduction of Harmonia axyridis (Coleoptera: Coccinellidae). Biocontrol Sci Technol, 2016, 26(1): 116-124.

[36] Reznik SY, Dolgovskaya MY, Ovchinnikov AN, Belyakova NA. Weak photoperiodic response facilitates the biological invasion of the harlequin ladybird Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae). J Appl Entomol, 2015, 139(4): 241-249.

[37] Rosi MC, Isidoro N, Colazza S, Bin F. Source of the host marking pheromone in the egg parasitoid Trissolcus basalis (Hymenoptera: Scelionidae). J Insect Physiol, 2001, 47(9): 989-995.

[38] Shahid AA, Mudasir AD, Mahendiran G, Aijaz AW. The first record of pear psylla Cacopsylla bidens (Hemiptera: Psyllidae) from India along with notes on seasonal occurrence and some elements of its biology. Orient Insects, 2017, 52(1): 101-111.

[39] Wei SJ, Xu FL, Hua FL, Lu JD, Zhang CG, Chen XX. A camphor insect pest-bionomics of Orthaga olivacea. Chin Bull Entomol, 2008, 45(4): 562-565. (In Chinese)

[40] Yan Q, Li HD, Chen Y, Ye ZF, You XY, Zhou J, Mu LF, Liu SJ, Kong XB, Khuhro SA, Dong SL. Identification and field evaluation of the sex pheromone of Orthaga achatina (Lepidoptera: Pyralidae). J Chem Ecol, 2018, 44: 886-893.

[41] Yang GJ, Yong HL, Wang XP. The biological characters and behavior of Eucryptorrhynchus chinensis. Chin Bull Entomol, 2008, 45(1): 65-69. (In Chinese)

[42] Yazdani M, Feng Y, Glatz R, Keller MA. Host stage preference of Dolichogenidea tasmanica (Cameron, 1912) (Hymenoptera: Braconidae), a parasitoid of Epiphyas postvittana (Walker, 1863) (Lepidoptera: Tortricidae). Austral Entomol, 2015, 54: 325-331.

[43] Yu QQ, Chen C, Liu ZK, Sun YW, Cao CJ, Bao S, Wen JB. Occurrence and life-history of Eucryptorrhynchus chinensis in Lingwu. Ningxia J Appl Entomol, 2012, 49(4): 1005-1009. (In Chinese)

[44] Zhang CC, Wamg M, Su P, Fan BQ, Wang Y, Hao DJ. Mating and oviposition behaviors of Pagiophloeus tsushimanus (Coleoptera: Curculionidae). Annu Rev Entomol, 2017, 42(10): 207-230. (In Chinese)

[45] Zhang CC, Gu TZ, Su P, Fan BQ, Wang Y, Hao DJ. Identification and phylogenetic position of Pagiophloeus tsushimanus based on COI and rDNA sequences. For Res, 2018, 31(3): 78-87. (In Chinese)

[46] Zhang Y, Zhang DJ, Li X, Zhang J. Contribution of soil fauna to the degradation of recalcitrant components in Cinnamomum camphora foliar litter in different-sized gaps in Pinus massoniana plantations. J For Res, 2019, 30(3): 931-941.