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CRC for Forestry Technical Report 216: November 2011 Are insect herbivores in eucalypt plantations a worsening problem? ii
Contents Acknowledgements ....................................................................................................................................... i Executive summary ....................................................................................................................................... v Introduction .................................................................................................................................................... 1 Methods .......................................................................................................................................................... 3 Databases 3 Analyses 4 Results ............................................................................................................................................................. 6 1 Are the damage levels from insect herbivores in plantations increasing? 6 2 Are the current significant insect herbivores of E. globulus/nitens plantations the same species as in the past? 12 3 Have new insect herbivore species recently emerged as pests? 15 4 Are the insect herbivore species evenly distributed throughout the plantation estate? 15 5 Are insect herbivore species that have recently emerged as problems in eucalypt plantations expanding their range? 16 Discussion ..................................................................................................................................................... 17 1 Are the damage levels from insect herbivores in eucalypt plantations increasing? 17 2 Are the current significant insect herbivores of E. globulus/ nitens plantations the same species as in the past? 19 3 Have new insect herbivore species recently emerged as pests? 20 4 Are the insect herbivore species evenly distributed throughout the plantation estate? 21 5 Are insect herbivore species that have recently emerged as problems in eucalypt plantations expanding their range? 22 Future trends ................................................................................................................................................ 23 Conclusions .................................................................................................................................................. 25 References ................................................................................................................................................... 27 CRC for Forestry Technical Report 216: November 2011 Are insect herbivores in eucalypt plantations a worsening problem? iii
Page 1 and 2: CRC for Forestry Researching sustai
Page 3: Acknowledgements We thank David de
Page 7 and 8: Executive summary The total area of
Page 9 and 10: Introduction Over the last few deca
Page 11 and 12: Databases Methods The annual Pest,
Page 13 and 14: a set of tables roughly correspondi
Page 15 and 16: Table 2. Correlation coefficients f
Page 17 and 18: (c) Esperance, WA Number of insect
Page 19 and 20: (a) Green Triangle Severity index (
Page 21 and 22: For WA, Abbott (1993a) and Strauss
Page 23 and 24: 3 Have new insect herbivore species
Page 25 and 26: Discussion In general, there was su
Page 27 and 28: insect herbivores have been acciden
Page 29 and 30: Findings from this report are consi
Page 31 and 32: Future trends So what trends might
Page 33 and 34: Conclusions In this historical anal
Page 35 and 36: References Abbott, I. (1993a) Insec
Page 37 and 38: Jones, R.E. (2001) Mechanisms for l
Page 39 and 40: Paine, T.D., Steinbauer, M.J. & Law
Page 41 and 42: Appendices Changes in damage caused
Page 43 and 44: 2010 Wattle Range Dorodong Poolaije
Page 45 and 46: 2009-10 Wattle Range Dorodong Poola
Page 47 and 48: d) Autumn gum moth (Mnesampela priv
Page 49 and 50: e) Spitfire sawfly (Perga affinis)
Page 51 and 52: 2. South-west WA a) Yellow-belly ch
Page 53 and 54: ) Eucalyptus weevil (Gonipterus pla
Page 55 and 56:
2000 Boddinton Harvey Collie Bussel
Page 57 and 58:
Page 59 and 60:
1997 1998 Harvey Collie Busselton D
Page 61 and 62:
Page 63 and 64:
d) Autumn gum moth (Mnesampela priv
Page 65 and 66:
Page 67 and 68:
Page 69 and 70:
1994 1995 1996 1997 Collie Busselto
Page 71 and 72:
Page 73 and 74:
Page 75 and 76:
) Eucalyptus weevil (Gonipterus sp.
Page 77:
d) Autumn gum moth (Mnesampela priv
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