The effect of nutrient dose and selected insecticides against corn earworm (Helicoverpa zea) in sweet corn / Muhamad Haika Jafri

Sweet corn (Zea mays var. saccharata) is family of Gramineae. There are many varieties of sweet corn available in the market and under categorized of the cash crop plants. In this study, the selected varieties (King Corn F1 316®) has high sugar content. Corn earworm (Helicoverpa zea) is the most com...

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Main Author:	Jafri, Muhamad Haika
Format:	Student Project
Published:	Faculty of Plantation and Agrotechnology 2018
Subjects:	S Agriculture (General) Pests and diseases Pest control and treatment of diseases. Plant protection Pesticides
Online Access:	http://ir.uitm.edu.my/id/eprint/22675/

id	uitm-22675
recordtype	eprints
spelling	uitm-226752019-02-14T04:21:29Z http://ir.uitm.edu.my/id/eprint/22675/ The effect of nutrient dose and selected insecticides against corn earworm (Helicoverpa zea) in sweet corn / Muhamad Haika Jafri Jafri, Muhamad Haika S Agriculture (General) Pests and diseases Pest control and treatment of diseases. Plant protection Pesticides Sweet corn (Zea mays var. saccharata) is family of Gramineae. There are many varieties of sweet corn available in the market and under categorized of the cash crop plants. In this study, the selected varieties (King Corn F1 316®) has high sugar content. Corn earworm (Helicoverpa zea) is the most common of the sweet corn insects-pest and also major issue pest that feeds on kernel at the tip of the sweet corn ear. The damage caused by corn earworm may cause physical damage to the fruits and the sweet corn to be unmarketable and down grade the quality of sweet corn’s fruits. The study was aimed to determine the effects of nutrient doses and selected insecticides towards the Helicoverpa zea abundance and plant growth performances. Different variation of nutrient dosage were applied to sweet corn plants labelled as N1 (10gm), N2 (20gm) and N3 (60gm). Different nutrient levels were applied to evaluate the effects of different nutrient dosages towards Helicoverpa zea population on sweet corn. Subsequently, the sweet corn plants were also treated with chemicals to evaluate the efficacy of different types of chemical usage such as C1=Cypermethrin, C2=Malathion, C3=Soursop and C4=Control for controlling the Helicoverpa zea. The study measured the plant growth performances in relation to pest abundance in the field. The results revealed that N3 (60gm) of nutrient dose was recorded to be the highest Helicoverpa zea abundance followed by N2 (20gm) and N1 (10gm). For controlling aspect, Cypermethrin was the most effective against Helicoverpa zea abundance in sweet corn. Cypermethrin gave the highest reduction of corn earworm followed by Malathion, soursop and control. Overall, the highest amount of nutrient level can influenced the presence of Helicoverpa zea population, therefore, optimum amount of nutrient should be considered in planting the sweet corn for the whole planting period and the best selected chemical was Cypermethrin. Faculty of Plantation and Agrotechnology 2018 Student Project NonPeerReviewed Jafri, Muhamad Haika (2018) The effect of nutrient dose and selected insecticides against corn earworm (Helicoverpa zea) in sweet corn / Muhamad Haika Jafri. [Student Project] (Unpublished)
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Teknologi MARA
building	UiTM Institutional Repository
collection	Online Access
topic	S Agriculture (General) Pests and diseases Pest control and treatment of diseases. Plant protection Pesticides
spellingShingle	S Agriculture (General) Pests and diseases Pest control and treatment of diseases. Plant protection Pesticides Jafri, Muhamad Haika The effect of nutrient dose and selected insecticides against corn earworm (Helicoverpa zea) in sweet corn / Muhamad Haika Jafri
description	Sweet corn (Zea mays var. saccharata) is family of Gramineae. There are many varieties of sweet corn available in the market and under categorized of the cash crop plants. In this study, the selected varieties (King Corn F1 316®) has high sugar content. Corn earworm (Helicoverpa zea) is the most common of the sweet corn insects-pest and also major issue pest that feeds on kernel at the tip of the sweet corn ear. The damage caused by corn earworm may cause physical damage to the fruits and the sweet corn to be unmarketable and down grade the quality of sweet corn’s fruits. The study was aimed to determine the effects of nutrient doses and selected insecticides towards the Helicoverpa zea abundance and plant growth performances. Different variation of nutrient dosage were applied to sweet corn plants labelled as N1 (10gm), N2 (20gm) and N3 (60gm). Different nutrient levels were applied to evaluate the effects of different nutrient dosages towards Helicoverpa zea population on sweet corn. Subsequently, the sweet corn plants were also treated with chemicals to evaluate the efficacy of different types of chemical usage such as C1=Cypermethrin, C2=Malathion, C3=Soursop and C4=Control for controlling the Helicoverpa zea. The study measured the plant growth performances in relation to pest abundance in the field. The results revealed that N3 (60gm) of nutrient dose was recorded to be the highest Helicoverpa zea abundance followed by N2 (20gm) and N1 (10gm). For controlling aspect, Cypermethrin was the most effective against Helicoverpa zea abundance in sweet corn. Cypermethrin gave the highest reduction of corn earworm followed by Malathion, soursop and control. Overall, the highest amount of nutrient level can influenced the presence of Helicoverpa zea population, therefore, optimum amount of nutrient should be considered in planting the sweet corn for the whole planting period and the best selected chemical was Cypermethrin.
format	Student Project
author	Jafri, Muhamad Haika
author_facet	Jafri, Muhamad Haika
author_sort	Jafri, Muhamad Haika
title	The effect of nutrient dose and selected insecticides against corn earworm (Helicoverpa zea) in sweet corn / Muhamad Haika Jafri
title_short	The effect of nutrient dose and selected insecticides against corn earworm (Helicoverpa zea) in sweet corn / Muhamad Haika Jafri
title_full	The effect of nutrient dose and selected insecticides against corn earworm (Helicoverpa zea) in sweet corn / Muhamad Haika Jafri
title_fullStr	The effect of nutrient dose and selected insecticides against corn earworm (Helicoverpa zea) in sweet corn / Muhamad Haika Jafri
title_full_unstemmed	The effect of nutrient dose and selected insecticides against corn earworm (Helicoverpa zea) in sweet corn / Muhamad Haika Jafri
title_sort	effect of nutrient dose and selected insecticides against corn earworm (helicoverpa zea) in sweet corn / muhamad haika jafri
publisher	Faculty of Plantation and Agrotechnology
publishDate	2018
url	http://ir.uitm.edu.my/id/eprint/22675/
first_indexed	2023-09-18T23:09:10Z
last_indexed	2023-09-18T23:09:10Z
_version_	1777418686028578816

The effect of nutrient dose and selected insecticides against corn earworm (Helicoverpa zea) in sweet corn / Muhamad Haika Jafri

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