Phytoprotection (2003) 84, 1-8

Noubar J. Bostanian, Martin Trudeau and Jacques Lasnier (2003)
Management of the two-spotted spider mite, Tetranychus urticae [Acari: Tetranychidae] in eggplant fields
Phytoprotection 84 (1), 1-8
Abstract: A three-season field evaluation showed that eggplants (Solanum melongena) are very tolerant to damage caused by the two-spotted spider mite, Tetranychus urticae. Although large numbers of the predacious mites, Neoseiulus fallacis or Phytoseiulus persimilis were released, biological control of the two-spotted spider mite could not be sustained in the field. Based on a preliminary comparison of yield in both sprayed and unsprayed plots and on a three-year qualitative assessment, a tentative action threshold of 600 two-spotted spider mites per leaf would not decrease yield and would reduce the number of acaricide treatments per season. The new acaricide spirodiclofen was effective against the two-spotted spider mite in a preliminary trial.
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Database assignments for author(s): Noubar J. Bostanian

Research topic(s) for pests/diseases/weeds:
control - general
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
inundative/inoculative release

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Tetranychus urticae	Eggplant (Solanum melongena)	Canada (east)
Phytoseiulus persimilis (predator)	Tetranychus urticae		Canada (east)
Neoseiulus fallacis (predator)	Tetranychus urticae		Canada (east)