Pola sebaran kelompok telur Ostrinia furnacalis Guenée (Lepidoptera: Crambidae) pada lahan jagung

Asian corn borer, <em>Ostrinia furnacalis</em> Guenée, is known as an important pest of maize,<em> Zea mays</em> L., in both whorl and reproductive stages. Management decisions based on egg-mass density is useful because decision is made before damage occurs. Observation on &...

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Autores principales:	Yosefus F. da-Lopez, Y. Andi Trisyono, Witjaksono Witjaksono, Subiadi Subiadi
Formato:	article
Lenguaje:	EN ID
Publicado:	The Entomological Society of Indonesia 2015
Materias:	Ostrinia furnacalis, egg-mass distribution, dispersion index Zoology QL1-991
Acceso en línea:	https://doaj.org/article/3df7eaa01c144380af1da47d452f988f
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spelling	oai:doaj.org-article:3df7eaa01c144380af1da47d452f988f2021-12-02T07:46:17ZPola sebaran kelompok telur Ostrinia furnacalis Guenée (Lepidoptera: Crambidae) pada lahan jagung1829-77222089-025710.5994/jei.11.2.81–92https://doaj.org/article/3df7eaa01c144380af1da47d452f988f2015-09-01T00:00:00Zhttp://jurnal.pei-pusat.org/index.php/jei/article/view/44https://doaj.org/toc/1829-7722https://doaj.org/toc/2089-0257Asian corn borer, <em>Ostrinia furnacalis</em> Guenée, is known as an important pest of maize,<em> Zea mays</em> L., in both whorl and reproductive stages. Management decisions based on egg-mass density is useful because decision is made before damage occurs. Observation on <em>O. furnacalis</em> egg-mass distribution in maize-field was carried out in Agricultural Training, Research, and Development Station (ATRD) UGM, Yogyakarta. The number of egg-masses laid on each plant surface in maize-field was sampled in reproductive stage of corn at 52 – 58 days after planting. The spatial dispersion was analyzed using the ratio variance-to-mean (σ2/μ = Iδ), Morista’s Index (Iγ), and the negative binomial parameter (κ-value). The results showed that horizontal and vertical distributions were aggregated distributions (σ2 > μ or σ2/μ > 1). In line with the increasing age of plant, the degree of clustering or aggregation likely tended to decline (the κ-value increased, Morisita index decreased) indicating the possible departure from aggregation to randomness (Poison distribution) due to the heterogeneity of the environment, such as microclimate, preferred parts of the plants, and occurrence of natural enemies. The results concluded that the horizontal and vertical distributions of egg-masses of<em> O. furnacalis</em> on corn in generative phase were clustered with the degree of clustering tended to decrease by the increase of age of corn. These findings provide the bases for further study on the ecology and biology of <em>O. furnacalis</em> for management decision-making process.Yosefus F. da-LopezY. Andi TrisyonoWitjaksono WitjaksonoSubiadi SubiadiThe Entomological Society of IndonesiaarticleOstrinia furnacalis, egg-mass distribution, dispersion indexZoologyQL1-991ENIDJurnal Entomologi Indonesia, Vol 11, Iss 2 (2015)
institution	DOAJ
collection	DOAJ
language	EN ID
topic	Ostrinia furnacalis, egg-mass distribution, dispersion index Zoology QL1-991
spellingShingle	Ostrinia furnacalis, egg-mass distribution, dispersion index Zoology QL1-991 Yosefus F. da-Lopez Y. Andi Trisyono Witjaksono Witjaksono Subiadi Subiadi Pola sebaran kelompok telur Ostrinia furnacalis Guenée (Lepidoptera: Crambidae) pada lahan jagung
description	Asian corn borer, <em>Ostrinia furnacalis</em> Guenée, is known as an important pest of maize,<em> Zea mays</em> L., in both whorl and reproductive stages. Management decisions based on egg-mass density is useful because decision is made before damage occurs. Observation on <em>O. furnacalis</em> egg-mass distribution in maize-field was carried out in Agricultural Training, Research, and Development Station (ATRD) UGM, Yogyakarta. The number of egg-masses laid on each plant surface in maize-field was sampled in reproductive stage of corn at 52 – 58 days after planting. The spatial dispersion was analyzed using the ratio variance-to-mean (σ2/μ = Iδ), Morista’s Index (Iγ), and the negative binomial parameter (κ-value). The results showed that horizontal and vertical distributions were aggregated distributions (σ2 > μ or σ2/μ > 1). In line with the increasing age of plant, the degree of clustering or aggregation likely tended to decline (the κ-value increased, Morisita index decreased) indicating the possible departure from aggregation to randomness (Poison distribution) due to the heterogeneity of the environment, such as microclimate, preferred parts of the plants, and occurrence of natural enemies. The results concluded that the horizontal and vertical distributions of egg-masses of<em> O. furnacalis</em> on corn in generative phase were clustered with the degree of clustering tended to decrease by the increase of age of corn. These findings provide the bases for further study on the ecology and biology of <em>O. furnacalis</em> for management decision-making process.
format	article
author	Yosefus F. da-Lopez Y. Andi Trisyono Witjaksono Witjaksono Subiadi Subiadi
author_facet	Yosefus F. da-Lopez Y. Andi Trisyono Witjaksono Witjaksono Subiadi Subiadi
author_sort	Yosefus F. da-Lopez
title	Pola sebaran kelompok telur Ostrinia furnacalis Guenée (Lepidoptera: Crambidae) pada lahan jagung
title_short	Pola sebaran kelompok telur Ostrinia furnacalis Guenée (Lepidoptera: Crambidae) pada lahan jagung
title_full	Pola sebaran kelompok telur Ostrinia furnacalis Guenée (Lepidoptera: Crambidae) pada lahan jagung
title_fullStr	Pola sebaran kelompok telur Ostrinia furnacalis Guenée (Lepidoptera: Crambidae) pada lahan jagung
title_full_unstemmed	Pola sebaran kelompok telur Ostrinia furnacalis Guenée (Lepidoptera: Crambidae) pada lahan jagung
title_sort	pola sebaran kelompok telur ostrinia furnacalis guenée (lepidoptera: crambidae) pada lahan jagung
publisher	The Entomological Society of Indonesia
publishDate	2015
url	https://doaj.org/article/3df7eaa01c144380af1da47d452f988f
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Pola sebaran kelompok telur Ostrinia furnacalis Guenée (Lepidoptera: Crambidae) pada lahan jagung

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