Aphidoletes aphidimyza (Diptera: Cecidomyiidae). The aphid midge, Aphidoletes aphidimyza, is a cecidomyiid fly whose larvae are effective predators of aphids. Aphidoline biological control agent contains the predatory midge, Aphidoletes aphidimyza. This voracious midge lays its eggs in colonies of aphids, and the. Aphidoletes aphidimyza is gall midge whose larvae feed on over 60 different species of aphids. These gall midges are mainly used to control aphid colonies.

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Pests – Koppert biological control natural pollination

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However, final numbers of M. Further complicating biological control in a program relying on a predator with prey preferences based on prey feeding locations is that within-plant prey distributions can change over time. Aphidoletes aphidimyza Rondani Diptera: The entire analysis was repeated with data subject to the empirical logit transformation, as recent simulations have indicated it may be an improvement over arcsine for proportions [ 29 ].

Author Contributions Sarah E.

Aphidoletes aphidimyza – Wikipedia

In the greenhouse A. Effective release rates for A. The presence of conidia in the soil and on leaves was assessed during the experiment. This can be averted in the greenhouse by nocturnal use of W incandescent light bulbs spaced 22 m apart when the canopy is open, with closer spacing when the canopy is dense.


At all plant stages, within-plant distribution of our two aphid species differed on sampling day 2 9 days after initial placement on plants; Figure 1.

These results provide practical information for the use of A. Percent control of each aphid species is also presented; A2,B2,C2 Comparison between aphid species on predator-treated plants at the end of aphidinyza experiments means and SE presented.

Aphidoletes aphidimyza

They are less than 0,3 mm. For both species, this was the only plant growth stage where pest abundance was reduced below initial starting levels.

Oviposition site selection by the predatory midge Aphidoletes aphidimyza Diptera: Author information Article notes Copyright and License information Disclaimer. However, we acknowledge that in many cases the number of aphids left at the end of experiments were still unacceptable for ornamental growers, and that aphid-infested bottom leaves could act as a reservoir for re-infestation.

This experimental design was repeated across three stages of plant growth: This study demonstrated that, even when using a polyphagous aphid predator, differential control between greenhouse aphid species is possible. Aphid and predator numbers were then sampled across three separate dates in all four treatments see Insect Sampling, below, Section 2.

They kill aphids per day.


To be considered budding, plants had to have at least one distinct bud forming at the apical meristem with buds being developed enough to have distinct petal tissue. Please review our privacy policy. Habitat Crops Cole crops, potatoes, greenhouses, backyard gardens, ornamentals, orchards, berries. Aphidae by the predatory midge Aphidoletes aphidimyza Diptera: Our results confirm those by Sentis et al. Our greenhouse experiments, where A.

Plants were A vegetative; B budding; or C flowering. Jandricic conducted experiments and wrote the paper. The onset of shorter day length toward the end of summer can induce diapause. Aphidoletes aphidimyza is produced in Canada by Applied-Bionomics.

Wraight 2 Robert W.

Studies with other aphid predators e. Alternative prey disrupt biocontrol by a guild of generalist predators.

Remarks The pupae need to be protected from dehydration, so do not scatter them. Jandricic and Stephen P. Vegetative Plants Treatment with A. Adults may be more susceptible than larvae. We also suggest that further tests be done in commercial operations to confirm optimal predator: Table 1 Details of experimental set-up of plant growth-stage experiments in greenhouse GH compartments.

In addition, larvae kill more aphids than they consume.