Monitoring pests of peaches in Hawke's bay to reduce insecticide applications

Lo, P. L.; Böhm, V.; Walker, James T.; Manktelow, D.W.L.

doi:10.30843/nzpp.1995.48.11501

Cited by 5 publications

(6 citation statements)

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“…Pest monitoring will be important in determining the best timing of spray applications. A spray threshold for GPA was developed for use with pirimicarb after bloom on process peaches (Lo et al 1995), but a different threshold may be appropriate for oils and pyrethrum.…”

Section: Discussionmentioning

confidence: 99%

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Evaluation of organically-acceptable pesticides against the green peach aphid (<i>Myzus persicae</i>)

Lo¹,

Bradley²,

Murrell³

1999

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Organically-acceptable insecticides were field-tested against the green peach aphid (Myzus persicae). An initial trial tested 11 products using single nectarine trees as plots. The four most promising treatments were then applied to larger plots by an air-blast sprayer in early November. Pyrethrum mixed with mineral oil was the most effective aphicide, reducing aphid populations from >20/shoot, to 0 and <5/shoot in the small and large plot trials respectively. Mineral oil alone and the fungus Beauveria bassiana had some effect in the small plots but not in the larger ones. Pyrethrum should be used only against severe infestations of M. persicae, until it is shown to be non-disruptive to biological control. Mineral oil was less likely to cause side effects, but needed to be applied early in the season to achieve complete spray coverage.

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Section: Discussionmentioning

confidence: 99%

“…Aphid populations have short generation times and their numbers increase rapidly under favourable conditions. In Hawke's Bay, GPA populations can reach damaging levels from October through to December (Lo et al 1995). From mid-December onwards, GPA populations decline naturally on summerfruit as they move to alternate hosts.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of organically-acceptable pesticides against the green peach aphid (<i>Myzus persicae</i>)

Lo¹,

Bradley²,

Murrell³

1999

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“…Process peaches were oversprayed with insecticides in the past, when some growers made up to 13 post-blossom applications in a season (Lo et al 1995). The introduction of IPM during the past two years has enabled the participating growers to greatly reduce their insecticide inputs without compromising fruit quality.…”

Section: Discussionmentioning

confidence: 99%

“…The reduction in insecticide use on Golden Queens in Hawke's Bay shows that the message about overspraying has been heeded by growers. Previous research (Lo et al 1995) enabled Heinz-Wattie Ltd to set a maximum number of insecticide applications for process peaches and this was largely responsible for the change. A further reduction in insecticide use is feasible, especially applications of organophosphates between October and December.…”

Section: Discussionmentioning

confidence: 99%

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Implementation of integrated pest management in Hawke's Bay

Lo¹,

Wood²,

Murrell³

1997

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A project jointly funded by industry and government commenced in 1995 to implement integrated pest management in the summerfruit industry in Hawke's Bay. Twelve process Golden Queen peach growers and one fresh market summerfruit grower were trained to conduct pest monitoring and make appropriate spray decisions. Monitoring programmes and spray thresholds have been developed for leafrollers, oriental fruit moth and green peach aphid. Unacceptable insect damage to fruit at harvest averaged 0.8% and 0.4% during the past two years on monitored orchards. This satisfactory result was achieved with a 73% reduction in post-blossom insecticide applications in 1996/97 compared with 1993/ 94. These averaged 1.1 sprays on monitored Golden Queen blocks compared with 1.8 applications on other Golden Queen orchards in 1996/ 97.

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Epiphyas postvittana (light brown apple moth)

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2022

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Monitoring pests of peaches in Hawke's bay to reduce insecticide applications

Cited by 5 publications

References 0 publications

Evaluation of organically-acceptable pesticides against the green peach aphid (<i>Myzus persicae</i>)

Evaluation of organically-acceptable pesticides against the green peach aphid (<i>Myzus persicae</i>)

Implementation of integrated pest management in Hawke's Bay

Epiphyas postvittana (light brown apple moth)

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