A new &lt;i&gt;Bacillus thuringiensis&lt;/i&gt; product for use on kiwifruit

McKenna, C.E.; Stevens, P.S.; Steven, Diane De

doi:10.30843/nzpp.1995.48.11507

Cited by 6 publications

(6 citation statements)

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“…In New Zealand, selection pressure from foliar application is likely to be very limited, due to the very restricted use of formulated products, which are currently relatively ineffective on apples . Their use on kiwifruit is more significant through the increasing use of Bt for caterpillar control (McKenna et al 1995).…”

Section: Discussionmentioning

confidence: 99%

Response to purified Cry IB protein in lab-wild type crosses of lightbrown apple moth

Suckling¹,

Markwick²,

Wigley³

et al. 1996

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A survey for genetic variability in response of Epiphyas postvittana to a purified Bacillus thuringiensisδ-endotoxin (Cry IB) was conducted in order to assess the risk of development of resistance, prior to the deployment of transgenic apple trees. Tethered laboratory colony female moths were mated to feral males at sites in the North Island in 1993 and 1994. The progeny of iso-female lines were tested for response to two concentrations, or to a range of concentrations of purified toxin. The LC 50 s varied by a factor of 4.3 fold in six iso-female lines from the 1993 collection. The lines were significantly more susceptible to Cry IB toxin than 14 iso-female lines originating from the second collection (7.2 fold range in LC 50). The range in LC 50 s of 20 field populations was 14 fold. This level of variation is similar to that reported for other species.

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Section: Discussionmentioning

confidence: 99%

Response to purified Cry IB protein in lab-wild type crosses of lightbrown apple moth

Suckling¹,

Markwick²,

Wigley³

et al. 1996

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“…Some progress was achieved with insect pest management, e.g. the 'window' program , but significant progress was not achieved until the development of the 'KiwiGreen' (Steven et al, 1994;McKenna et al, 1995), 'Integrated Fruit Production' (Batchelor et al, 1997) and 'SummerGreen' (McLaren et al, 1999) programs.…”

Section: Important Websites Publications Andmentioning

confidence: 99%

“…Initial studies focused on developing an understanding of the biology of the key pest species. It was determined that the majority of leafroller damage to kiwifruit occurs in the 8 weeks immediately after fruit set and was mostly due to a single endemic species, Ctenopseustis obliquana (Stevens et al, 1995). After this time, the risk of leafroller damage was shown to be low, but late-season infestations of a second endemic species, Cnephasia jactatana, were recognized as possible in some orchards.…”

Section: Pre-kiwigreenmentioning

confidence: 99%

“…A second key component of the kiwifruit research program was targeted at identifying alternative, environmentally benign insecticides that would enable the production of residue-free fruit. Field studies showed products containing Bt could provide excellent control of leafrollers (McKenna et al, 1995;McKenna, 1998a;Stevens and McKenna, 1999), but an alternative was also needed for armoured scale control. Mineral oil was one such option, but trials in the 1970s had shown it to be phytotoxic to the crop (Sale, 1972).…”

Section: Pre-kiwigreenmentioning

confidence: 99%

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Integrated pest management in the global arena

2003

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This book presents experiences and successful case studies of integrated pest management (IPM) from developed and developing countries and from major international centres and programmes. It contains 39 chapters by many contributors addressing themes such as: emerging issues in IPM, including biotechnology, pesticide policies and socioeconomic considerations (8 chapters); country experiences from Africa, Asia, North and South America, Europe, Australia and New Zealand (20 chapters); and regional and international experiences, including those of FAO, USAID, ICIPE, CIRAD, the World Bank and CGIAR Systemwide IPM Program (9 chapters). This book will be of significant interest to those working in the areas of crop protection, entomology and pest management.

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“…To protect the crop over this critical damage period, it is recommended that three insecticide sprays are applied at intervals of two to three weeks. These sprays are the core of the pest control programme for kiwifruit, and in their absence fruit losses due to caterpillar feeding can exceed 30% (Steven 1990;McKenna et al 1995). The rate of new damage from leafrollers declines rapidly from February to harvest in May.…”

Section: Introductionmentioning

confidence: 99%

The effectiveness of different insecticide programmes for kiwifruit

McKenna¹

1998

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The levels of leafroller and armoured scale control achieved using six different spray programmes were compared against an unsprayed control. Test programmes included post-blossom applications of Bacillus thuringiensis (Bt) only, diazinon only, and a combination of the two. The effect of a pre-blossom diazinon spray or spring oil application on subsequent armoured scale populations was also measured. Three sprays of Bt in December-January provided excellent control of leafrollers for the entire season. Using diazinon instead of Bt resulted in high levels of leafroller damaged fruit, and live caterpillars in the crop at harvest. The risk of late-season armoured scale infestations on leaves or fruit was greater when no diazinon sprays were applied post-blossom. An additional pre-blossom diazinon spray had no effect on subsequent pest levels.

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A new <i>Bacillus thuringiensis</i> product for use on kiwifruit

Cited by 6 publications

References 0 publications

Response to purified Cry IB protein in lab-wild type crosses of lightbrown apple moth

Response to purified Cry IB protein in lab-wild type crosses of lightbrown apple moth

Integrated pest management in the global arena

The effectiveness of different insecticide programmes for kiwifruit

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