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Toxicity levels of insecticides on diamondback moth (Plutella xylostella) from Cameron Highland, Pahang, Malaysia

Since 1941, the diamondback moth (DBM), Plutellaxylostella is one of the major pest of crucifers grown in the Cameron Highlands, Pahang. The larvae feed on leaves tissue, leaving the vein and cause economic losses to the cabbage farmers. Recurrent used of the same types of insecticide to control DBM...

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Main Author: Ismail, Mohd Sobri
Format: Project Paper Report
Language:English
Published: 2013
Online Access:http://psasir.upm.edu.my/id/eprint/79350/1/FP%202013%2026%20IR.pdf
http://psasir.upm.edu.my/id/eprint/79350/
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spelling my.upm.eprints.793502020-07-09T06:58:28Z http://psasir.upm.edu.my/id/eprint/79350/ Toxicity levels of insecticides on diamondback moth (Plutella xylostella) from Cameron Highland, Pahang, Malaysia Ismail, Mohd Sobri Since 1941, the diamondback moth (DBM), Plutellaxylostella is one of the major pest of crucifers grown in the Cameron Highlands, Pahang. The larvae feed on leaves tissue, leaving the vein and cause economic losses to the cabbage farmers. Recurrent used of the same types of insecticide to control DBMs has led the insect to develop resistance. When resistance developed, the farmers will use higher dosage of insecticide and make frequent application which could causes detrimental effects to environment. The study was conducted to determine toxicity levels of selected insecticides on Plutellaxylostella from Cameron Highland. The leafdipp bioassay technique was used in this evaluation. Early third instar larvae were placed on insecticide treated cabbage leaf discs. Types of insecticide tested were Takumi® (Flubendiamide), Prevathon® (Chlorantraniliprole), Steward® (Indoxacarb) and no insecticide as control. 5 concentrations for each insecticide and 3replications were conducted to obtain LC50 values by probit analysis. Parameter recorded was the rate of larval mortality. This study was arranged in Randomized Complete Block Design (RCBD). By comparing three types of insecticides, at 72 hours, Steward® has the highest toxicity level as having the lowest LC50 value which is at 86.064ng/g in which needed only small amount a.i insecticides to kill 50% of its population. Meanwhile, Prevathon® and Takumi® have least toxicity at range 283.081ng/g and 2678.992ng/g respectively. 2013 Project Paper Report NonPeerReviewed text en http://psasir.upm.edu.my/id/eprint/79350/1/FP%202013%2026%20IR.pdf Ismail, Mohd Sobri (2013) Toxicity levels of insecticides on diamondback moth (Plutella xylostella) from Cameron Highland, Pahang, Malaysia. [Project Paper Report]
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Since 1941, the diamondback moth (DBM), Plutellaxylostella is one of the major pest of crucifers grown in the Cameron Highlands, Pahang. The larvae feed on leaves tissue, leaving the vein and cause economic losses to the cabbage farmers. Recurrent used of the same types of insecticide to control DBMs has led the insect to develop resistance. When resistance developed, the farmers will use higher dosage of insecticide and make frequent application which could causes detrimental effects to environment. The study was conducted to determine toxicity levels of selected insecticides on Plutellaxylostella from Cameron Highland. The leafdipp bioassay technique was used in this evaluation. Early third instar larvae were placed on insecticide treated cabbage leaf discs. Types of insecticide tested were Takumi® (Flubendiamide), Prevathon® (Chlorantraniliprole), Steward® (Indoxacarb) and no insecticide as control. 5 concentrations for each insecticide and 3replications were conducted to obtain LC50 values by probit analysis. Parameter recorded was the rate of larval mortality. This study was arranged in Randomized Complete Block Design (RCBD). By comparing three types of insecticides, at 72 hours, Steward® has the highest toxicity level as having the lowest LC50 value which is at 86.064ng/g in which needed only small amount a.i insecticides to kill 50% of its population. Meanwhile, Prevathon® and Takumi® have least toxicity at range 283.081ng/g and 2678.992ng/g respectively.
format Project Paper Report
author Ismail, Mohd Sobri
spellingShingle Ismail, Mohd Sobri
Toxicity levels of insecticides on diamondback moth (Plutella xylostella) from Cameron Highland, Pahang, Malaysia
author_facet Ismail, Mohd Sobri
author_sort Ismail, Mohd Sobri
title Toxicity levels of insecticides on diamondback moth (Plutella xylostella) from Cameron Highland, Pahang, Malaysia
title_short Toxicity levels of insecticides on diamondback moth (Plutella xylostella) from Cameron Highland, Pahang, Malaysia
title_full Toxicity levels of insecticides on diamondback moth (Plutella xylostella) from Cameron Highland, Pahang, Malaysia
title_fullStr Toxicity levels of insecticides on diamondback moth (Plutella xylostella) from Cameron Highland, Pahang, Malaysia
title_full_unstemmed Toxicity levels of insecticides on diamondback moth (Plutella xylostella) from Cameron Highland, Pahang, Malaysia
title_sort toxicity levels of insecticides on diamondback moth (plutella xylostella) from cameron highland, pahang, malaysia
publishDate 2013
url http://psasir.upm.edu.my/id/eprint/79350/1/FP%202013%2026%20IR.pdf
http://psasir.upm.edu.my/id/eprint/79350/
_version_ 1672612244601438208
score 13.211869

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