Results 151 to 160 of about 882 (185)
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Influence of crop husbandry on rice planthoppers (Hemiptera; Delphacidae) in the Solomon Islands
Agro-Ecosystems, 1974Abstract Husbandry practices which led to the rice planthoppers Nilaparvata lugens Stal and Sogatella furcifera Horv. (Hemiptera; Delphacidae) becoming severe pests at Ilu on Guadalcanal are identified. In the system of two irrigated rice crops a year at Ilu, rice was grown in every month of each year from 1960 to 1966. Overlapping of an extended
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A revision of the planthopper genus Chionomus Fennah (Hemiptera: Fulgoroidea: Delphacidae)
Zootaxa, 2020The planthopper genus Chionomus Fennah, 1971 (Hemiptera: Fulgoroidea: Delphacidae) currently includes three Neotropical species, removed from the polyphyletic genus Delphacodes Fieber, 1866. Morphological and molecular evidence further redefine Chionomus to include ten additional species (eight species removed from Delphacodes, two described as new ...
KATHRYN M. WEGLARZ, CHARLES R BARTLETT
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Bulletin of Entomological Research, 2015
AbstractPlanthoppers are important worldwide crop pests as well as vectors of numerous diseases. Different species transmitMal de Río Cuarto virus, which causes the most economically important corn disease in central Argentina. Epidemiological studies rely on the accurate identification of the species present in the field.
E B, Argüello Caro +4 more
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AbstractPlanthoppers are important worldwide crop pests as well as vectors of numerous diseases. Different species transmitMal de Río Cuarto virus, which causes the most economically important corn disease in central Argentina. Epidemiological studies rely on the accurate identification of the species present in the field.
E B, Argüello Caro +4 more
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Hybridization studies in the planthopper genus Ribautodelphax (Homoptera, Delphacidae)
Genetica, 1988Seven known Ribautodelphax species and four recently discovered taxa were crossed. Forty-three percent of the interspecific crosses were successful. Interspecific crosses generally resulted in low numbers of hybrids. In some combinations prolonged larval development of the hybrid males was observed.
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Genetic control and evolution of acoustic signals in planthoppers (Homoptera: Delphacidae)
Population Ecology, 1995Abstract Acoustic signals are part of the specific mate recognition system of planthoppers. The genetic control of acoustic signal characters was studied in the planthopper Ribautodelphax imitans .
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Netherlands Journal of Zoology, 1985
Calling signals of seven species and four recently discoverd taxa of the genus Ribautodelphax were recorded and analysed. Clear differences in calling variables were found between all Ribautodelphax studied which suggests that all taxa investigated are true species. Interspecific differences were distinct in males as well as females.
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Calling signals of seven species and four recently discoverd taxa of the genus Ribautodelphax were recorded and analysed. Clear differences in calling variables were found between all Ribautodelphax studied which suggests that all taxa investigated are true species. Interspecific differences were distinct in males as well as females.
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Environmental Entomology, 2012
The planthopper, Nilaparvata lugens Stål (Homoptera: Delphacidae), uses acoustic signals generated by abdominal vibration and transmitted through rice (Oryza sativa L.) plants to locate mates. The influence of temperature (20, 28, and 32°C) on abdominal vibration patterns of individual females and males, proportion of mated females, and responsivity ...
Ying, Long +4 more
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The planthopper, Nilaparvata lugens Stål (Homoptera: Delphacidae), uses acoustic signals generated by abdominal vibration and transmitted through rice (Oryza sativa L.) plants to locate mates. The influence of temperature (20, 28, and 32°C) on abdominal vibration patterns of individual females and males, proportion of mated females, and responsivity ...
Ying, Long +4 more
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Archives of Insect Biochemistry and Physiology, 2015
Argonaute (AGO) proteins are essential catalytic components of the RNA‐induced silencing complex and play central roles in RNA interference. Using a combination of bioinformatics and rapid amplification of cDNA ends (RACE) methods, putative AGO subfamily members, ls‐AGO1 and ls‐AGO2, were cloned and characterized from the small brown planthopper ...
Yan-Ru, Zhou +5 more
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Argonaute (AGO) proteins are essential catalytic components of the RNA‐induced silencing complex and play central roles in RNA interference. Using a combination of bioinformatics and rapid amplification of cDNA ends (RACE) methods, putative AGO subfamily members, ls‐AGO1 and ls‐AGO2, were cloned and characterized from the small brown planthopper ...
Yan-Ru, Zhou +5 more
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Ecological Entomology, 1988
ABSTRACT. The occurrence of pseudogamous triploid females in populations of the diploid species Ribautodelphax pungens (Ribaut) was studied throughout Europe.
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ABSTRACT. The occurrence of pseudogamous triploid females in populations of the diploid species Ribautodelphax pungens (Ribaut) was studied throughout Europe.
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