NZPPS   ·  Journal home   ·   Past issues  ·  This volume   ·   Previous abstract   ·   Next abstract



New Zealand Plant Protection 64 (2011): 215-221

Use of mating disruption for control of New Zealand leafrollers in apple orchards

J.T.S. Walker, D.J. Rogers, P.L. Lo, D.M. Suckling, A.M. El-Sayed, T.M. Fraser and R.M. Horner

ABSTRACT

Leafrollers are important pests of apples and infested fruit can result in rejection of export consignments. Leafroller mating disruption using a pheromone blend with activity against three species was examined in 12 Hawke's Bay orchards over two seasons (2009-10 and 2010-11). Pheromone dispensers (600/ha) and a single insecticide were applied to trees in early November, and subsequent insecticide use was based on leafroller pheromone trapping and thresholds. The pheromone blend substantially suppressed mating of virgin female lightbrown apple moth in treated orchards and reduced male catch in pheromone traps by up to 98% compared with the season prior to implementation. Insecticide use for leafroller control decreased accordingly, from 2.1-2.7 insecticides per block in 2008/09 to 1.0-1.8 in 2010/11. Leafroller control using mating disruption was acceptable, fruit damage varied from 0.3% to 0.16% and no leafroller larvae were found on fruit in both field assessments and phytosanitary inspections of packed cartons.

Keywords: New Zealand leafrollers, Tortricidae, mating disruption, apple, insecticide use.

Related articles
pdfMultiple species mating disruption of leafrollers in cherries in Central Otago
G.F. McLaren, D.M. Suckling, A.M. El-Sayed, B.T. Hislop and T.F.S. Jones (2013)
New Zealand Plant Protection 66: 132-137
pdfCodling moth (Cydia pomonella) mating disruption outcomes in apple orchards
J.T.S. Walker, P.L. Lo, R.M. Horner, N.M. Park, J.G. Hughes and T.M. Fraser (2013)
New Zealand Plant Protection 66: 259-263
pdfDevelopment of multiple species mating disruption to control codling moth and leafrollers (Lepidoptera: Tortricidae)
P.L. Lo, J.T.S. Walker, R.M. Horner and D.I. Hedderley (2013)
New Zealand Plant Protection 66: 264-269
pdfDevelopment and commercialisation of pheromone products in New Zealand
D.M. Suckling, J.T.S Walker, G.K. Clare, K.S.H. Boyd Wilson, C. Hall, A.M. El-Sayed and P.S. Stevens (2012)
New Zealand Plant Protection 65: 267-273
pdfA potential mating disruption system for three New Zealand leafroller species
L.M. Cole, J.T.S. Walker, A.M. El-Sayed, P.L. Lo and N. Sharma (2009)
New Zealand Plant Protection 62: 398
pdfIntegrated fruit production (IFP) for New Zealand pipfruit: evaluation of pest management recommendations
J.T.S. Walker, C.H. Wearing, S.J. Bradley, P.W. Shaw, G.M. Burnip, A.R. Tomkins, C. Richardson and A.J. Hodson (1998)
Proceedings of the NZ Plant Protection Conference 51: 166-172
pdfParameters affecting catch of lightbrown apple moth in pheromone-treated orchards
D.M. Suckling and G. Karg (1996)
Proceedings of the NZ Plant Protection Conference 49: 319

Copyright © 2011 New Zealand Plant Protection Society (Inc.).

Please refer to the terms of use.