Toxicity of pesticides toTetranychus urticaeKoch (Acari:Tetranychidae) and their side effects onNeoseiulus californicus(Acari:Phytoseiidae)

Autor:	Nizam Uddin, Zinnatul Alam, Ramiz Uddin Miah, Kishowar-E Mustarin, Ismail Hossain Mian
Rok vydání:	2015
Předmět:	Phytoseiidae fungi Bifenthrin Pesticide Biology biology.organism_classification Propargite Toxicology chemistry.chemical_compound chemistry Insect Science Abamectin Acari Tetranychus urticae Dimethoate
Zdroj:	International Journal of Acarology. 41:688-693
ISSN:	1945-3892 0164-7954
DOI:	10.1080/01647954.2015.1094512
Popis:	The present study was conducted to determine the direct and residual effects of five pesticides, namely abamectin, bifenthrin, dimethoate, propargite and sulphur against Tetranychus urticae and residual toxicity of these pesticides to Neoseiulus californicus adults. In the laboratory trials, except dimethoate, all the pesticide treatments caused 100% mortality of T. urticae adults within 24–48 hours. When toxicity to eggs was tested, the egg mortality for all pesticide treatments was significantly higher than the control. Except dimethoate, all the pesticides caused >90% egg mortality. In potted bean plants, all the pesticide treatments caused significant mortality of T. urticae populations over control up to 21 days. The residual effects of pesticides were tested on T. urticae and N. californicus using a leaf disc system in the laboratory. Mites were exposed to freshly sprayed leaf disc and after at 3, 7, 14 and 21. Abamectin showed higher efficacy against T. urticae but low toxicity against N. c...
Databáze:	OpenAIRE
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