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



New Zealand Plant Protection 65 (2012): 35-43

Phosphine fumigation to disinfest kiwifruit

L.E. Jamieson, N.E.M Page-Weir, A Chhagan, D.W. Brash, D. Klementz, B.L. Bycroft, P.G. Connolly, B.C. Waddell, R. Gilbertson, F. Bollen and A.B. Woolf

ABSTRACT

Global use of phosphine as a fumigant has increased in response to the need to replace methyl bromide, and with the improved formulations, ECO2FUME and VAPORPH3OS. Phosphine is registered as a postharvest fumigant on kiwifruit in New Zealand and has been used commercially to reduce the risk of detecting live pests. Scale insects, mealybugs and diapausing twospotted spider mites were exposed to a range of phosphine treatments. A 48-h low temperature (1.7-4.6C) fumigation (6408-3311 ppm) achieved 100% mortality of all life stages of oleander scale insects, while a 12-h exposure killed all longtailed mealybug life stages. A 36-h low temperature (2.5-3.3C) fumigation (4332-2712 ppm) treatment achieved 100% mortality of all greedy scale insect life stages. A 48- to 96-h treatment (3600-1200 ppm) at 1-15C caused 91.3-100% mortality of diapausing twospotted spider mite adults. Use of phosphine as a commercial treatment for kiwifruit is discussed.

Keywords: phosphine, fumigation, low-temperature, pests, longtailed mealybug, oleander scale, greedy scale, twospotted spider mite.

Related articles
pdfA biochemical viability assay is compatible with molecular methods for species identification
N.K. Richards, L.M. Winder, I.I. Iline, M.A. Novoselov, M.R. McNeill and C.B. Phillips (2013)
New Zealand Plant Protection 66: 29-33
pdfEfficacy of phosphine fumigation of apples for codling moth (Cydia pomonella) disinfestation
D.J. Rogers, B.L. Bycroft, K.G. Somerfield, D.W. Brash, D. Klementz, L.M. Cole, N. Sharma, N.M. Taylor, B.B.C. Page, P.G. Connolly and B.C. Waddell (2013)
New Zealand Plant Protection 66: 75-81

Copyright © 2012 New Zealand Plant Protection Society (Inc.).

Please refer to the terms of use.