A survey of apple leafcurling midge (&lt;i&gt;Dasyneura mali&lt;/i&gt;) management in Waikato orchards

Tomkins, A. R.; Wilson, D.R.; Hutchings, S. O.; June, S.

doi:10.30843/nzpp.1994.47.11052

Cited by 17 publications

(11 citation statements)

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“…Apple leafcurling midge (Dasineura mali Kieffer) (ALCM) was accidentally introduced into New Zealand in 1950 (Todd 1956) and became a secondary pest primarily controlled by the broad-spectrum insecticides applied against key pests. In the mid 1980s, ALCM populations and their damage increased considerably (Tomkins et al 1994). The actual cause(s) of this change in pest status is not clear.…”

Section: Introductionmentioning

confidence: 99%

“…The actual cause(s) of this change in pest status is not clear. Control measures are used to prevent serious leaf damage (Tomkins et al 1994), fruit contamination by pupal cocoons and because larval feeding damage can act as an entry point for plant pathogens (Gouk and Boyd 1999). ALCM is currently managed with sprays of diazinon applied to the soil and/or foliage of apple trees in spring (Burnip et al 1998), with further applications only made when a threshold based on the level of shoot infestation by eggs is reached (Anon.…”

Section: Introductionmentioning

confidence: 99%

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Emergence of apple leafcurling midge (Dasineura mali) and its parasitoid (Platygaster demades)

Tomkins¹,

Wilson²,

Thomson³

et al. 2000

NZPP

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Apple leafcurling midge (Dasineura mali) (ALCM) can seriously damage apple tree leaves. Insecticides may be applied to the soil in spring to kill ALCM emerging from overwintering sites. ALCM emergence was studied in the Waikato, Hawke's Bay, Nelson, Canterbury and Central Otago over two seasons (1998/99 and 1999/ 2000) using cages placed over the soil beneath apple trees. ALCM and its egg parasitoid (Platygaster demades) emerged over a similar period of time. Emergence in southern districts began later and over a shorter period. A single soil treatment with diazinon, reduced the numbers of ALCM emerging from treated soil, but also very few P. demades emerged.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Emergence of apple leafcurling midge (Dasineura mali) and its parasitoid (Platygaster demades)

Tomkins¹,

Wilson²,

Thomson³

et al. 2000

NZPP

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“…In New Zealand, apple leafcurling midge (Dasineura mali Kieffer) (ALCM) has increased in importance in recent years (Tomkins et al 1994). In the Waikato, ALCM has a high number of generations and can cause substantial shoot damage (Tomkins et al 1994). The larvae infest the young leaves and shoot tips that are also sites of fire blight infection.…”

Section: Introductionmentioning

confidence: 99%

Role of apple leafcurling midge in the spread of fire blight

Gouk¹,

Boyd²

1999

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The incidence of apple leafcurling midge (Dasineura mali) (ALCM) infestations in association with fire blight (Erwinia amylovora) was monitored in the 1997-98 season. In two blocks of MM106 apple rootstocks, increased fire blight incidence coincided with severe outbreaks of ALCM. Rain did not occur prior to severe outbreaks of both pests. Trees with no ALCM infestation did not develop fire blight, while 61.7% of those with ALCM infestation subsequently developed fire blight. ALCM damage to leaves predisposed them to fire blight infection. These findings provide the first quantitative evidence that ALCM may be involved in the spread of fire blight.

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“…Diazinon is a broad spectrum organophosphate insecticide which is commonly used on New Zealand apple orchards specifically for the control of apple leafcurling midge (ALM) (Dasineura mali Diptera: Cecidomyiidae) (Smith and Chapman 1995;Tomkins et al 1994). It is often applied as a foliar spray, although many orchardists make soil applications during late winter or early spring in an attempt to control overwintering ALM pupae or emerging adults.…”

Section: Introductionmentioning

confidence: 99%

Soil degradation of diazinon and its effect on the emergence of apple leafcurling midge

Smith¹,

Chapman²,

Frampton³

1998

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The degradation of diazinon residues in the soil of an orchard on the Waimea Plains, Nelson was determined. The half life of diazinon varied significantly between 12.2 and 27.7 days, depending on the time of application. Soil applications of diazinon had a significant effect on the emergence of adult apple leafcurling midge (ALM) (Dasineura mali Diptera: Cecidomyiidae). More ALM were captured in the control and plots treated with diazinon on 7 September than in plots treated with diazinon on 21 September and 5 October.

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A survey of apple leafcurling midge (<i>Dasyneura mali</i>) management in Waikato orchards

Cited by 17 publications

References 0 publications

Emergence of apple leafcurling midge (<i>Dasineura mali</i>) and its parasitoid (<i>Platygaster demades</i>)

Emergence of apple leafcurling midge (<i>Dasineura mali</i>) and its parasitoid (<i>Platygaster demades</i>)

Role of apple leafcurling midge in the spread of fire blight

Soil degradation of diazinon and its effect on the emergence of apple leafcurling midge

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