POSTHARVEST CONTROL OF Pseudococcus viburni (HEMIPTERA: PSEUDOCOCCIDAE) IN POMEGRANATES (Punica granatum) BY IMMERSION IN WARM DETERGENT SOLUTIONS

ABSTRACT The obscure mealybug Pseudococcus viburni is a major quarantine pest of pomegranates (Punica granatum) in Chile, causing significant rejections during postharvest fruit inspections. To develop alternative control measures, infested pomegranates were immersed in one of the sixteen post-harve...

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Autores principales:	Carpio,Carlos, Curkovic,Tomislav
Lenguaje:	English
Publicado:	Universidad de Concepción. Facultad de Agronomía, Facultad de Ingeniería Agricola y Facultad de Ciencias Veterinarias 2018
Materias:	Detergent exposure time hot water treatment mealybug pH
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0719-38902018000100012
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spelling	oai:scielo:S0719-389020180001000122019-04-03POSTHARVEST CONTROL OF Pseudococcus viburni (HEMIPTERA: PSEUDOCOCCIDAE) IN POMEGRANATES (Punica granatum) BY IMMERSION IN WARM DETERGENT SOLUTIONSCarpio,CarlosCurkovic,Tomislav Detergent exposure time hot water treatment mealybug pH ABSTRACT The obscure mealybug Pseudococcus viburni is a major quarantine pest of pomegranates (Punica granatum) in Chile, causing significant rejections during postharvest fruit inspections. To develop alternative control measures, infested pomegranates were immersed in one of the sixteen post-harvest treatments, combining the following four factors in a completely randomized block design with a factorial structure: detergent concentration (0 and 1%), water temperature (15 or 47°C), pH (5.5 and 8.5), and exposure time (6 and 15 min). After immersions, pomegranates were stored for one month at cold storage (5°C) and followed by 24 h at room temperature. The number of total live mealybugs (survivorship) at different developmental stages (I, II, and III nymphal instars, and adult females) was counted. Water temperature had a significant effect in reducing total mealybug survival, but there were no significant interactions with remaining factors. Individually, detergent concentration, pH, and exposure time did not have statistically significant effects, but the interaction detergent x pH x exposure time (for all mealybugs) and detergent x pH (for II and III instar nymphs) reduced significantly mealybug infestation. While some treatments significantly reduced the population of P. viburni, with some treatment combinations reducing infestation up to 98%, there were always some survivors from all stages; therefore, no treatment satisfied international quarantine criteria for postharvest. It is important to note that the treatments did not affect fruit quality, suggesting that further evaluations of these factors at higher levels could be a promising avenue for pest control.info:eu-repo/semantics/openAccessUniversidad de Concepción. Facultad de Agronomía, Facultad de Ingeniería Agricola y Facultad de Ciencias VeterinariasChilean journal of agricultural & animal sciences v.34 n.1 20182018-05-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0719-38902018000100012en10.4067/S0719-38902018005000202
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Detergent exposure time hot water treatment mealybug pH
spellingShingle	Detergent exposure time hot water treatment mealybug pH Carpio,Carlos Curkovic,Tomislav POSTHARVEST CONTROL OF Pseudococcus viburni (HEMIPTERA: PSEUDOCOCCIDAE) IN POMEGRANATES (Punica granatum) BY IMMERSION IN WARM DETERGENT SOLUTIONS
description	ABSTRACT The obscure mealybug Pseudococcus viburni is a major quarantine pest of pomegranates (Punica granatum) in Chile, causing significant rejections during postharvest fruit inspections. To develop alternative control measures, infested pomegranates were immersed in one of the sixteen post-harvest treatments, combining the following four factors in a completely randomized block design with a factorial structure: detergent concentration (0 and 1%), water temperature (15 or 47°C), pH (5.5 and 8.5), and exposure time (6 and 15 min). After immersions, pomegranates were stored for one month at cold storage (5°C) and followed by 24 h at room temperature. The number of total live mealybugs (survivorship) at different developmental stages (I, II, and III nymphal instars, and adult females) was counted. Water temperature had a significant effect in reducing total mealybug survival, but there were no significant interactions with remaining factors. Individually, detergent concentration, pH, and exposure time did not have statistically significant effects, but the interaction detergent x pH x exposure time (for all mealybugs) and detergent x pH (for II and III instar nymphs) reduced significantly mealybug infestation. While some treatments significantly reduced the population of P. viburni, with some treatment combinations reducing infestation up to 98%, there were always some survivors from all stages; therefore, no treatment satisfied international quarantine criteria for postharvest. It is important to note that the treatments did not affect fruit quality, suggesting that further evaluations of these factors at higher levels could be a promising avenue for pest control.
author	Carpio,Carlos Curkovic,Tomislav
author_facet	Carpio,Carlos Curkovic,Tomislav
author_sort	Carpio,Carlos
title	POSTHARVEST CONTROL OF Pseudococcus viburni (HEMIPTERA: PSEUDOCOCCIDAE) IN POMEGRANATES (Punica granatum) BY IMMERSION IN WARM DETERGENT SOLUTIONS
title_short	POSTHARVEST CONTROL OF Pseudococcus viburni (HEMIPTERA: PSEUDOCOCCIDAE) IN POMEGRANATES (Punica granatum) BY IMMERSION IN WARM DETERGENT SOLUTIONS
title_full	POSTHARVEST CONTROL OF Pseudococcus viburni (HEMIPTERA: PSEUDOCOCCIDAE) IN POMEGRANATES (Punica granatum) BY IMMERSION IN WARM DETERGENT SOLUTIONS
title_fullStr	POSTHARVEST CONTROL OF Pseudococcus viburni (HEMIPTERA: PSEUDOCOCCIDAE) IN POMEGRANATES (Punica granatum) BY IMMERSION IN WARM DETERGENT SOLUTIONS
title_full_unstemmed	POSTHARVEST CONTROL OF Pseudococcus viburni (HEMIPTERA: PSEUDOCOCCIDAE) IN POMEGRANATES (Punica granatum) BY IMMERSION IN WARM DETERGENT SOLUTIONS
title_sort	postharvest control of pseudococcus viburni (hemiptera: pseudococcidae) in pomegranates (punica granatum) by immersion in warm detergent solutions
publisher	Universidad de Concepción. Facultad de Agronomía, Facultad de Ingeniería Agricola y Facultad de Ciencias Veterinarias
publishDate	2018
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0719-38902018000100012
work_keys_str_mv	AT carpiocarlos postharvestcontrolofpseudococcusviburnihemipterapseudococcidaeinpomegranatespunicagranatumbyimmersioninwarmdetergentsolutions AT curkovictomislav postharvestcontrolofpseudococcusviburnihemipterapseudococcidaeinpomegranatespunicagranatumbyimmersioninwarmdetergentsolutions
_version_	1714207160032821248

POSTHARVEST CONTROL OF Pseudococcus viburni (HEMIPTERA: PSEUDOCOCCIDAE) IN POMEGRANATES (Punica granatum) BY IMMERSION IN WARM DETERGENT SOLUTIONS

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