The effect of leaffolder <i>Cnaphalocrocis medinalis</i> (Guenee) [Lepidoptera: Pyralidae] injury on the plant physiology and yield loss in rice

Padmavathi, Ch.; Katti, Gururaj; Padmakumari, A. P.; Voleti, S. R.; Rao, L. V. Subba

doi:10.1111/j.1439-0418.2012.01741.x

Cited by 51 publications

(28 citation statements)

References 18 publications

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“…Pandey (2003) opined that the luxuriant growth of the crop due to higher N application attracts more RLF for shelter and oviposition. Similarly, Padmavathi et al (2013) reported that RLF damage resulted in 57% reduction in chlorophyll. Larval density of more than 3 larvae hill -1 at maximum tillering stage resulted up to 20% unfilled grains and 28-57% reduction in PS II activity.…”

Section: Discussionmentioning

confidence: 99%

Impact of Multiple Insect-Pest Incidence on Yield in Basmati Rice

Sarao¹,

Shera²,

Singh³

2015

Cereal Research Communications

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The experiments for determining the multiple insect-pest incidence on yield loss in basmati rice was conducted for two crop seasons. Five treatments were, viz. application of imidacloprid in vegetative stage; application of granular insecticide in vegetative stage; application of higher dose of Urea; augmentive releases of yellow stem borer egg mass at vegetative and booting stage; untreated control. During both the years, the correlation between grain yield and dead heart, leaf folder damage and planthopper population at 50 and 65 DAT and white ear at maturity was negative. The analysis of variance of regression analysis of yield Vs damage levels at different crop growth stages during both the years revealed a significant linear relationship. The yield loss was highly related to incidence of stem borer and leaf folder damage at 50 and 65 DAT during both the years. For integrated pest management, effective monitoring of stem borer and leaf folder from 50 to 65 DAT is required, which appeared as a critical crop growth stage. The farmers should remain cautious during this period to prevent yield loss.

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Section: Discussionmentioning

confidence: 99%

Impact of Multiple Insect-Pest Incidence on Yield in Basmati Rice

Sarao¹,

Shera²,

Singh³

2015

Cereal Research Communications

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“…Rice leafroller C. medinalis is a major pest of rice in many Asian countries (Bautista et al, 1984;Padmavathi et al, 2012). Although control of C. medinalis with chemicals is not difficult (Endo et al, 1987), its occurrence was widespread because many farmers try to reduce the number of insecticide applications as possible due to public concern and the cost of the chemicals.…”

Section: Resultsmentioning

confidence: 99%

Insect natural enemies as bioindicators in rice paddies

Ueno

2012

Korean Journal of Agricultural Science

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:In Asia, including Japan and Korea, rice paddies occupy the largest cultivated area in agricultural land. Rice paddies provide the habitats for many organisms including endemic species, sustaining high biodiversity. Insect natural enemies inhabiting rice paddies have an important function for rice production as agents of 'ecosystem services' because they play a major role in suppressing rice pests. The diversity and abundance of natural enemies can be a good index reflecting the 'healthiness' of agro-ecosystem services in rice paddies. The present study investigates whether insect natural enemies could be good biological indicators for general arthropod biodiversity and agricultural practice. First, the concept of ideal bio-indicators was summarized. The strategy to explore and select such bio-indicators was then proposed. Lastly, field survey was made to evaluate the abundance and biodiversity of natural enemies in Japanese rice paddies where chemical inputs, i.e., insecticide use, were different. The results showed that reduction of chemical inputs led to an increase in species richness or diversity of natural enemies including parasitoids and predators. Then, the data were analyzed to examine suitable indicator species to assess environmental soundness of agricultural practice and biodiversity in rice paddies. The density of several species of natural enemies did respond both to pesticide use and to general arthropod biodiversity. The analyses thus have indicated that natural enemies can be suitable as bio-indicators. Usefulness of indicator species in rice paddies is discussed in the context of ecologically sound agriculture.

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“…C. medinalis secara umum dikenal sebagai hama penting pada tanaman padi (Gangwar, 2015). Hama ini merupakan salah satu hama paling merusak pada tanaman padi di Asia (Ahmad, Rehman, Haq, & Mahmood, 2016;Liu, Rao, Li & Li, 2015) dan menurunkan 30-80% hasil panen padi di daerah endemik hama (Nanda & Bisoi, 1990), bahkan pada varietas hibrid dapat mencapai 68-80% (Padmavathi, Katti, Padmakumari, Voleti & Subba Rao, 2013). Ledakan serangan hama C. medinalis sering terjadi di pertanian padi di daerah Asia bagian timur (Liu et al, 2015).…”

Section: Pengendalian Hamaunclassified

“…Banyaknya daun yang rusak menyebabkan proses fotosintesis tanaman menjadi terganggu. Serangan hama ini pada tanaman padi dapat menyebabkan penurunan hasil 63-80% (Padmavathi et al, 2013). Apabila serangan ini terus berlanjut dapat berakibat gagalnya penyediaan bibit karena banyaknya semai yang mati.…”

Section: B Luas Dan Intensitas Serangan Hamaunclassified

Studi Kerusakan Semai Laban (Vitex pubescens) oleh Serangan Ulat Pelipat Daun (Cnaphalocrocis medinalis)

Kurniawan

Purwanto

Imanullah

2017

JPKS

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ABSTRAKPengembangan sumber energi terbarukan sebagai alternatif pengganti sumber energi fosil makin diperlukan. Salah satunya dengan menggunakan energi biomassa. Laban (Vitex pubescens) memiliki potensi yang cukup baik sebagai penyedia energi biomassa. Laban memiliki keunggulan nilai kalor yang tinggi dan pertunasan yang tinggi sehingga dapat menyediakan biomassa dalam waktu relatif cepat. Budidaya tanaman laban sering kali menjumpai masalah, diantaranya adalah serangan hama ulat pada fase semai. Penelitian ini bertujuan mengidentifikasi jenis hama, mengukur luas dan intensitas serangan hama yang menyerang semai laban di persemaian Kawasan Hutan Dengan Tujuan Khusus (KHDTK) Kemampo serta cara pengendaliannya. Berdasarkan hasil identifikasi diketahui, hama ulat yang menyerang semai laban di persemaian adalah jenis ulat Cnaphalocrocis medinalis. Jenis ini dikenal sebagai hama penting pada tanaman padi. Daun yang terserang menunjukkan gejala terlipat, berlubang-lubang seperti jaring dan menyisakan urat daun serta tulang daun. Hama ini dikenal dengan nama ulat pelipat daun. Daun yang terserang C. medinalis akan kehilangan mesofil daun sehingga akan mengganggu proses fotosintesis. Berdasarkan pengamatan pada saat serangan hama, hampir seluruh tanaman terserang hama (93,6%), intensitas serangan agak berat sampai dengan berat (2,09). Pengendalian hama dilakukan menggunakan insektisida berbahan aktif fipronil dapat menurunkan luas serangan sebesar 7,4% maupun intensitas serangan hama (1,45). Kata Kunci: Cnaphalocrocis medinalis, fipronil, ulat pelipat daun, Vitex pubescens ABSTRACTThe development of renewable energy sources as an alternative to fossil energy sources is increasingly necessary. One of them is biomass energy. Laban (Vitex pubescens) has good potential as a provider of biomass energy. Laban has the advantage of high calorific value and high budding so as to provide biomass in relatively short time. The cultivation of laban often encounters problems, such as pests attack at seedling phase. This study was aimed to identify the type of pest, to measure the extent and intensity of the attack as well as the control means in the laban nursery at Kemampo Forest areas for Special Purposes. The pests that attack laban seedlings in the nursery identified as Cnaphalocrocis medinalis. This pest is recognized as an important pest in rice. The affected leaves showed symptoms of folded, perforated like a net and leaved the leaf only with veins. This pest is wellknown as a leaf folder worm. The affected leaves lost its Smesophyll that would interfere with the photosynthesis process. The observations showed that almost all plants were damaged by the pest (93.6%). The intensity of the attack was categorized as heavy to severe (2.09). Pest control was done using insecticide with fipronil active ingredient that could reduce the extent by 7.4% and intensity of the pest attacks (1.45).

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The effect of leaffolder Cnaphalocrocis medinalis (Guenee) [Lepidoptera: Pyralidae] injury on the plant physiology and yield loss in rice

Cited by 51 publications

References 18 publications

Impact of Multiple Insect-Pest Incidence on Yield in Basmati Rice

Impact of Multiple Insect-Pest Incidence on Yield in Basmati Rice

Insect natural enemies as bioindicators in rice paddies

Studi Kerusakan Semai Laban (Vitex pubescens) oleh Serangan Ulat Pelipat Daun (Cnaphalocrocis medinalis)

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