Kelompok Studi Entomologi Serangga Pengendali Serangga Hama

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Cnaphalocrocis medinalis is a major pest of rice in South and South-East Asia. Insecticides are the major means farmers use for management. A naturally occurring baculovirus, C. medinalis granulovirus (CnmeGV), has been isolated from the larvae and this has the potential for use as microbial agent. Here, we described the complete genome sequence of CnmeGV and compared it to other baculovirus.

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The rice leaffolder, Cnaphalocrocis medinalis (Guenée), is one of the major migratory insect pests of rice in Asia (Barrion et al., 1991, Cheng, 1996). Its heavy occurrence caused serious damage to rice production through feeding on and folding the leaves (Yang et al., 2015). There is little understanding of the microbiota on this insect pest.

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Insect Science and its Application, 9 (2):129-174. Google Scholar. Kobayashi M, Wada T, 1979. Hymenopterous parasites of the rice leaf roller, Cnaphalocrocis medinalis Guenee, and their activities observed in the paddy fields of Chikugo. Proceedings of the Association for Plant Protection of Kyushu, 25:64-66.

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Cnaphalocrocis medinalis Guenée (Lepidoptera: Pyralidae) is a notorious pest of rice, Oryza sativa L. (Poaceae). Sex pheromones and host-plant volatiles can trap C. medinalis separately. To improve the trap efficiency of synthetic sex pheromone blend, we first tested the synergistic effect of 8 host-plant volatiles, including 2-phenylethanol, 1-hexanol, 1-heptanol, (Z)-3-hexenal, (E)-2.

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Seasonal migration of Cnaphalocrocis medinalis 3. O=0-25%, as an accessory species with O=25-50% and as a constant species with O=50-100%. Results Annual and seasonal pattern of migration

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Cnaphalocrocis medinalis granulovirus (CnmeGV) is a potential microbial agent against the rice leaffolder. Innate immunity is essential for insects to survive pathogenic infection. Therefore, to clarify the immune response of Cnaphalocrocis medinalis to the viral colonization, the gene expression profile of C. medinalis infected with CnmeGV was constructed by RNA-seq.

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Cnaphalocrocis medinalis is an oligophagous pest, feeds on rice leaves almost exclusively and causes serious damage to rice in Asian countries. Using antibiotic treatment and metagenome sequencing, we investigated the influence of the food sources (rice and maize seedlings) on the structure and functions of intestinal bacteria of C. medinalis .

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Cnaphalocrocis medinalis, the rice leafroller, is a species of moth of the family Crambidae.It is found in south-east Asia, including Hong Kong, Sri Lanka, Taiwan, Thailand and most of Australia.. The wingspan is about 16 millimetres (5 ⁄ 8 in).. The larvae are considered a pest of Oryza sativa, Zea mays, and Triticum, Saccharum and Sorghum species.. The moth is very active, bright yellow or.

Kelompok Studi Entomologi Serangga Pengendali Serangga Hama

The rice leafroller, Cnaphalocrocis medinalis, is one of the most important pests on rice and possesses striking flight ability. We have determined the nucleotide sequence of the 15,377 bp of a C. medinalis mitochondrial genome (mtDNA). The mtDNA encodes 37 genes and shows a unique lepidopteran CR-M-I-Q arrangement. Three possible substructures were detected in C. medinalis and some other.

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1. Introduction. Cnaphalocrocis medinalis(C.medinalis) always damages rice and results in yield reduction (Heong et al., 1993; Wan et al., 2015).The larvae spit out the silk and roll up the rice leaves from the edges to the center, feeding on the leaf flesh and remaining white damage symptoms, as shown in Figure 1.For the pests are concealed in the rolled leaves, plant protection staff have to.

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The Cnaphalocrocis medinalis (Guenée) is one of the most important rice pests in Asia and is difficult to control by chemical insecticides due to its rapid development of resistance. To screen potential species for biological control of C. medinalis, we investigated the effects of temperature (20, 24, 28, 32, and 36 °C) and host age (1-, 2.

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Background. The rice leaffolder, Cnaphalocrocis medinalis (Guenée), has become an increasingly occurring pest in Asia in recent years. Chemical control remains the most efficient and primary tool for controlling this pest. In this study, we report the resistance status of C. medinalis in China to multiple insecticides including chlorantraniliprole and the main resistance mechanism.

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In Sri Lanka, larval parasitization ranges from 38 to 70%. Five parasitoids (four hymenopterans and a tachinid) are quite common.In Japan, an ichneumonid Trathala flavoorbitalis kills 34-54% of leaf folder larvae from late June to early July, whereas only 12% are killed in the normal season. In late August to mid-October, the bethylid causes.

Cnaphalocrocis medinalis LepiWiki

The rice leaf roller, Cnaphalocrocis medinalis (Guenée), is a serious insect pest of rice with a strong migratory ability. Previous studies on the migration of C. medinalis were mostly carried out in tropical or subtropical regions, however, and what the pattern of seasonal movements this species exhibits in temperate regions (i.e. Northern China, where they cannot overwinter) remains unknown.

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Cnaphalocrocis medinalis is a major pest of rice in South and South-East Asia. Insecticides are the major means farmers use for management. A naturally occurring baculovirus, C.medinalis granulovirus (CnmeGV), has been isolated from the larvae and this has the potential for use as microbial agent. Here, we described the complete genome sequence of CnmeGV and compared it to other baculovirus.

Metamorfosis & Siklus Hidup Semut Daur Hidup & Tahapan

Cnaphalocrocis medinalis (Guenée) (Lepidoptera: Crambidae) is an economically important pest of rice, Oryza sativa L. (Poaceae), throughout Asia, where damage caused by larvae, particularly during grain-filling stages, significantly increases yield losses. There is, therefore, a pressing need to develop cultivars that are resistant to C. medinalis. In this study, we assessed growth and.