Phytoparasitica (2002) 30, 525-528

M. Van de Veire, M. Klein and L. Tirry (2002)
Residual activity of abamectin and spinosad against the predatory bug Orius laevigatus
Phytoparasitica 30 (5), 525-528
Abstract: The residual effect of two biopesticides, abamectin and spinosad, on the predatory bug Orius laevigatus (Fieber) (Hemiptera: Anthocoridae) was tested using a laboratory and an extended laboratory method. Experiments were conducted in the spring and summer 2000. The LD₅₀s on the 2nd and 5th nymphal instar and the adult stage, were lower for abamectin than for spinosad. The toxicity of each product on the 2nd instar and adults was significantly greater than on the 5th nymphal instar. Abamectin was much more persistent in spring than in summer. Spray deposits (at the recommended rate of 10 ppm a.i. for leafminer control) were toxic for 1 month in spring, whereas in summer they were no longer toxic after 2 weeks. Spinosad summer spray deposits (recommended rate of 250 ppm a.i. for leafminer and caterpillar control) were not toxic after 5 residual days.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): M. Van de Veire, Luc Tirry

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
resistance/tolerance/defence of host

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
Orius laevigatus (predator)