Evaluation of Insecticide Activity of Two Agricultural Detergents against the Long-Tailed Mealybug, Pseudococcus longispinus (Hemiptera: Pseudococcidae), in the Laboratory

The insecticide effect of agricultural detergents SU 120 and Tecsa Fruta was evaluated on females and nymphs II of Pseudococcus longispinus (Targioni & Tozzetti) in the laboratory. Mortality at 24 h was subjected to Probit analysis to obtain the LC50. For Tecsa Fruta, a volume of 9.5 mL solu...

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Autores principales:	Curkovic,Tomislav, Burett,Gary, Araya,Jaime E
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2007
Materias:	agricultural detergents bioassays LC50 SU 120 Tecsa Fruta
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0365-28072007000400010
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spelling	oai:scielo:S0365-280720070004000102009-01-06Evaluation of Insecticide Activity of Two Agricultural Detergents against the Long-Tailed Mealybug, Pseudococcus longispinus (Hemiptera: Pseudococcidae), in the LaboratoryCurkovic,TomislavBurett,GaryAraya,Jaime E agricultural detergents bioassays LC50 SU 120 Tecsa Fruta The insecticide effect of agricultural detergents SU 120 and Tecsa Fruta was evaluated on females and nymphs II of Pseudococcus longispinus (Targioni & Tozzetti) in the laboratory. Mortality at 24 h was subjected to Probit analysis to obtain the LC50. For Tecsa Fruta, a volume of 9.5 mL solution was sprayed, while for SU 120, volumes of 2, 4, and 8 mL 100 mL-1 solution were evaluated. Mortality was directly related to the concentration used. Nymphs II were more susceptible than females to both detergents. LC50 for Tecsa Fruta were 17.9 mL 100 mL-1 for females, and 5.4 mL 100 mL-1 for nymphs II, whereas for SU 120 they were 3.1, 1.6, and 1.9 mL 100 mL-1 on females, and 0.8, 0.5, and 0.5 mL 100 mL-1 (with 2, 4, and 8 mL, respectively) on nymphs II. For the latter, there were no significant differences among volumes, and for females, the LC50 with 4 and 8 mL solution were not statistically different, although these two volumes were statistically smaller than in the treatment with 2 mL. For the same SU 120 concentration, mortality of females increased with greater volumes sprayed. SU 120 had a significantly greater insecticide effect than Tecsa Fruta on P. longispinus nymphs II and females. Nymphs II were the most susceptible stage. Results suggest that it would be possible to reduce detergent concentration using greater spray volumen to achieve similar mortality.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAAgricultura Técnica v.67 n.4 20072007-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0365-28072007000400010en10.4067/S0365-28072007000400010
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	agricultural detergents bioassays LC50 SU 120 Tecsa Fruta
spellingShingle	agricultural detergents bioassays LC50 SU 120 Tecsa Fruta Curkovic,Tomislav Burett,Gary Araya,Jaime E Evaluation of Insecticide Activity of Two Agricultural Detergents against the Long-Tailed Mealybug, Pseudococcus longispinus (Hemiptera: Pseudococcidae), in the Laboratory
description	The insecticide effect of agricultural detergents SU 120 and Tecsa Fruta was evaluated on females and nymphs II of Pseudococcus longispinus (Targioni & Tozzetti) in the laboratory. Mortality at 24 h was subjected to Probit analysis to obtain the LC50. For Tecsa Fruta, a volume of 9.5 mL solution was sprayed, while for SU 120, volumes of 2, 4, and 8 mL 100 mL-1 solution were evaluated. Mortality was directly related to the concentration used. Nymphs II were more susceptible than females to both detergents. LC50 for Tecsa Fruta were 17.9 mL 100 mL-1 for females, and 5.4 mL 100 mL-1 for nymphs II, whereas for SU 120 they were 3.1, 1.6, and 1.9 mL 100 mL-1 on females, and 0.8, 0.5, and 0.5 mL 100 mL-1 (with 2, 4, and 8 mL, respectively) on nymphs II. For the latter, there were no significant differences among volumes, and for females, the LC50 with 4 and 8 mL solution were not statistically different, although these two volumes were statistically smaller than in the treatment with 2 mL. For the same SU 120 concentration, mortality of females increased with greater volumes sprayed. SU 120 had a significantly greater insecticide effect than Tecsa Fruta on P. longispinus nymphs II and females. Nymphs II were the most susceptible stage. Results suggest that it would be possible to reduce detergent concentration using greater spray volumen to achieve similar mortality.
author	Curkovic,Tomislav Burett,Gary Araya,Jaime E
author_facet	Curkovic,Tomislav Burett,Gary Araya,Jaime E
author_sort	Curkovic,Tomislav
title	Evaluation of Insecticide Activity of Two Agricultural Detergents against the Long-Tailed Mealybug, Pseudococcus longispinus (Hemiptera: Pseudococcidae), in the Laboratory
title_short	Evaluation of Insecticide Activity of Two Agricultural Detergents against the Long-Tailed Mealybug, Pseudococcus longispinus (Hemiptera: Pseudococcidae), in the Laboratory
title_full	Evaluation of Insecticide Activity of Two Agricultural Detergents against the Long-Tailed Mealybug, Pseudococcus longispinus (Hemiptera: Pseudococcidae), in the Laboratory
title_fullStr	Evaluation of Insecticide Activity of Two Agricultural Detergents against the Long-Tailed Mealybug, Pseudococcus longispinus (Hemiptera: Pseudococcidae), in the Laboratory
title_full_unstemmed	Evaluation of Insecticide Activity of Two Agricultural Detergents against the Long-Tailed Mealybug, Pseudococcus longispinus (Hemiptera: Pseudococcidae), in the Laboratory
title_sort	evaluation of insecticide activity of two agricultural detergents against the long-tailed mealybug, pseudococcus longispinus (hemiptera: pseudococcidae), in the laboratory
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2007
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0365-28072007000400010
work_keys_str_mv	AT curkovictomislav evaluationofinsecticideactivityoftwoagriculturaldetergentsagainstthelongtailedmealybugpseudococcuslongispinushemipterapseudococcidaeinthelaboratory AT burettgary evaluationofinsecticideactivityoftwoagriculturaldetergentsagainstthelongtailedmealybugpseudococcuslongispinushemipterapseudococcidaeinthelaboratory AT arayajaimee evaluationofinsecticideactivityoftwoagriculturaldetergentsagainstthelongtailedmealybugpseudococcuslongispinushemipterapseudococcidaeinthelaboratory
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Evaluation of Insecticide Activity of Two Agricultural Detergents against the Long-Tailed Mealybug, Pseudococcus longispinus (Hemiptera: Pseudococcidae), in the Laboratory

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