Agronomy Research (2006) 4, 317-322

L. Raudonis (2006)
Comparative toxicity of spirodiclofen and lambdacihalotrin to Tetranychus urticae, Tarsonemus pallidus and predatory mite Amblyseius andersoni in a strawberry site under field conditions
Agronomy Research 4 (special issue), 317-322
Abstract: The relative toxicity of broad-spectrum acaricide spirodiclofen 240 g Al l^-1 from a new class of active ingredients and synthetic pyrethroid insecticide-acaricide lambdacihalotrin 50 g Al l^-1 to the seasonal abundance of Tetranychus urticae Koch (Acari: Tetranychidae), Tarsonemus pallidus Banks (Acari: Tarsonemidae) and predatory mite Amblyseius andersoni Chant (Acari: Phytoseiidae) was evaluated in strawberry sites under field conditions in 2003-2004. The field rate (96 g AI ha^-1) of spirodiclofen was very toxic (82.3-96.1% mortality) after 7 and 21 days after treatment to T. urticae. The mortality to T. pallidus ranged from 76.6-79.3% after 7 days, and from 59.0-74.9% after 21 days following treatment respectively. The rate (48 g AI ha^-1) of spirodiclofen was very toxic (78.8-87.8% mortality) after 7 days and moderately toxic (54.1-73.4% mortality) after 21 days following treatment to T. urticae. The lower rate of spirodiclofen was moderately toxic after 7 days and from non- to slightly toxic after 21 days following treatment to T. pallidus. The toxicity of lambdacihalotrin (25 g AI ha^-1) to T. urticae was similar to a lower rate of Spirodiclofen. Lambdacihalotrin was non-toxic to T. pallidus, but moderately toxic (51.4-62.5% mortality) after 7 and 21 days following treatment to A. andersoni. Both rates of spirodiclofen were non-toxic to predatory mites.
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Database assignments for author(s): L. Raudonis

Research topic(s) for pests/diseases/weeds:
control - general
health/environmental effects of pesticides
Research topic(s) for beneficials or antagonists:
resistance to pesticides

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Tetranychus urticae	Strawberry (Fragaria)	Lithuania
	Phytonemus pallidus	Strawberry (Fragaria)	Lithuania
Amblyseius andersoni (predator)			Lithuania