Elateridae. Melanotus. Chinese Bulletin of Entomology

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1 Chinese Bulletin of Entomology ~ 987 * Investigation of host rang of wireworms Melanotus cribricolls and their spatial distribution in soil. DENG Shun SHU Jin-PingWANG Hao-Jie Institute of Subtropical ForestryChinese Academy of ForestryFuyang China Abstract Shoots of 47 bamboo species from seven genera PhyllostachysPseudosasaPleioblastus SinobambusaBrachystachyumOligostachyum and Bambusa were excavated using a special tool to examine the host range of wireworms Melanotus cribricolls Faldermann in the Anji Bamboo Museum & Garden. The other main pests of bamboo shoots were also investigated. It was found that 41 of 47 bamboo species are infested by wirewormsincluding at least 30 new host species of this pest. Analysis of the spatial distribution of wireworms in five bamboo species indicated that larger larvae were aggregated in soil. Statistical analysis indicates that wireworms caused less damage than noctuidsand that wireworms and noctuids have become the most pervasive bamboo pests in the Anji Bamboo Museum & Garden. We also found a lesser extent of shoot damage caused by Bipectilus zhejiangensileaf beetlestermites and parasitic flies. In view of the dispersal abilities and potential for damage of wirewormswe suggest that it would be prudent to attempt to control these pests by transplanting bamboo plantssoil improvement and breeding resistant bamboo varieties. Key words Melanotus cribricollsphyllostachysbamboo speciesspatial distribution Melanotus cribricolls Faldermann Phyllostachys Pseudosasa Pleioblastus Sinobambusa Brachystachyum Oligostachyum Bambusa Apamea spp. Bipectilus zhejiangensi Melanotus cribricolls Faldermann Coleoptera Elateridae Melanotus Elateridae * BAD19B BAD08A1104 dshun1979@ yahoo. com. cn whj@ fy. hz. zj. cn

2 984 Chinese Bulletin of Entomology % 3 / kg ~ Salt Hollick 4 > 30 / Agriotes sputator L. = / < 20 Seal 5 Conoderu % 6 5 ml Pleonomus canaliculatus m 20 cm 20 cm 25 cm 4 5 > 25 mm = / % 300 6

3 5 985 V λ C = V / λ C < 1 C = 1 Poisson C > 1 Cassie Kuno C A = V - λ / λ 2 C A < 0 C A C A > 0 Morisita I δ = Σ n x i x i - 1 Σ i = 0 N N - 1 = n fx 2 - N N N - 1 I δ > 1 I δ V λ - 1 Green GI = Σ n - 1 GI < 0 GI = 0 GI > 0 n fx f m * = λ + V / λ - 1 m * / λ = 1 m * m * / λ > 1 2 I δ = 0 = 1 Bipectilus zhejiangensis < 1 x / λ < ~ mm 2. 1 ~ 2. 5 mm 1 ~ 2 / 3 ~ 8 4 / > > 2. 3 > 25 mm 5 47 Phyllostachys praecox 8 9 P. pubescens 10 P. nuda 11 P. bissetii 12 Acidosasa edulis

4 986 Chinese Bulletin of Entomology 47 1 % % % 1 P. glauca % 6. 0% 4. 0% 2 P. meyeri McClure % 15. 2% - 3 P. iridescins % 43. 6% 2. 7% 4 P. tianmuensis % 34. 5% - 5 P. nidularia f. glabro vagina % 19. 4% 11. 3% 6 P. dulcis % 42. 3% - 7 P. nigella % 41. 0% 3. 3% 8 P. yunhoensis % 25. 6% 2. 3% 9 P. vivax f. aureocaulis % 31. 5% - 10 P. nigra % 3. 2% 7. 4% 11 P. prominens % 28. 8% 9. 6% 12 P. maculatus % 12. 0% 11. 0% 13 P. atrovaginata % 10. 0% 8. 0% 14 P. nigravar henonis % 4. 8% 1. 0% 15 P. bambusoides % 19. 5% - 16 P. aurea Carr. ex A. et C. Riviere % 19. 6% 3. 6% 17 P. fimbriligula % 9. 9% 5. 6% 18 P. glauca McClure % 34. 5% - 19 P. imcarnata Wen % 21. 6% - 20 P. aureosulcata f. aureocaulis % 11. 8% - 21 P. parvifolia C. D. Chu et H. Y % P. bambusoides % 1. 0% 23 P. nidularia % 16. 4% 24 Oligostachym lubricum % 36. 9% 3. 1% 25 Sinobambusa tootsik Sieb. Makino % 12. 8% - 26 Sinobambusa striata Wen % % 27 Pleioblastus amarus var. hangzhouensis % - 28 Pseudosasa amabilis % 3. 0% 29 Pseudosasa viridula % 29. 7% - 30 Pseudosasa japonica % 6. 1% - 31 Brachystachyum densiflorum % 1. 2% 32 P. heteroclada Oliver 33 P. aureosulcata f. spectabilis % - 34 P. sulphurea cv. Viridis 35 P. elegans McClure - 36 P. virdi - glaucescens % - 37 P. glabrata S. Y. Chen et C. Y. Yao % - 39 P. sieb. et Zucc % 40 P. sarcana f. luteosulcata % P. praecox. C. d. Chu et C. S. Chao % 42 P. nuda McClure % 43 P. aureosuleata McClure cv. Pekinensis J. L. Lu % 44 P. aureosulcata % 45 P. heterocycla cv. huamozhu % Bambusa rutila McClure % 47 P. platyglossa Z. P. Wang et Z. H. Yu % 1 ~ ~ 45 Phyllostachys 24 Oligostachyum 25 ~ 26 Sinobambusa 27 Pleioblastus 28 ~ 29 Pseudosasa 30 Brachystachyum 46 Bambusa 32 ~ 37 -

5 Species P. sieb. et Zucc P. virdi-glaucescens P. aureosulcata P. praecox Bambusa rutila McClure Cassie Kuno N V λ C C A Morisita I & Green GI Lloyd ~ 2745 ~ ~ Salt Hollid 4 Seal 5 Entomol ~ ~ 32. Agriotes sputator ~ ~ ~ ~ m *. 4 Salt G. Hollick F. Studies of wireworm populations II. Spatial distribution. J. Exp. Biol ~ Seal D. R. McSorley R. Chalfant R. B. Seasonal abundance and spatial distribution of wireworms Coleoptera Elateridae in Georgia sweet potato fields. J. Econ ~ ~ 39. / λ

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