Results 221 to 230 of about 12,275 (261)
Some of the next articles are maybe not open access.
Flight Behaviour in the Brown Planthopper, Nilaparvata lugens (Stål) (Homoptera: Delphacidae)
International Journal of Tropical Insect Science, 1987In order to evaluate the migratory potential of the brown planthopper, Nilaparvata lugens, under as near to normal environmental conditions as possible, adult macropterous insects were captured from the field whilst in the process of flight initiation at the times of their natural take-off peaks.
D. E. Padgham, T. J. Perfect, A. G. Cook
openaire +1 more source
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.
openaire +2 more sources
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.
openaire +2 more sources
Bulletin of entomological research, 2019
Volatile organic compounds (VOCs) released by plants are generally involved in host recognition and host selection for many phytophagous insects. However, for leafhoppers and planthoppers, host recognition is mainly thought to involve a phototactic ...
M. V. C. Aráoz +6 more
semanticscholar +1 more source
Volatile organic compounds (VOCs) released by plants are generally involved in host recognition and host selection for many phytophagous insects. However, for leafhoppers and planthoppers, host recognition is mainly thought to involve a phototactic ...
M. V. C. Aráoz +6 more
semanticscholar +1 more source
Density-Related Migration in Planthoppers (Homoptera: Delphacidae): The Role of Habitat Persistence
The American Naturalist, 1991We investigated the selective pressures associated with the possession of wings and migration in wing-dimorphic planthoppers (Homoptera: Delphacidae).
Robert F. Denno +3 more
openaire +1 more source
Ecological Entomology, 1988
ABSTRACT. The occurrence of pseudogamous triploid females in populations of the diploid species Ribautodelphax pungens (Ribaut) was studied throughout Europe.
openaire +2 more sources
ABSTRACT. The occurrence of pseudogamous triploid females in populations of the diploid species Ribautodelphax pungens (Ribaut) was studied throughout Europe.
openaire +2 more sources
An orange-eye mutant of the brown planthopper, Nilaparvata lugens (Hemiptera: Delphacidae)
Journal of Asia-Pacific Entomology, 2011An orange-eye mutant of the brown planthopper (BPH), Nilaparvata lugens (Stal), was found in a green house and has since been maintained together with a normal-eye phenotype of BPH in an insectary. The orange color was expressed in all developmental stages of BPH: the eye spots of eggs and the eyes of nymphs and adults of both sexes and wing forms ...
Bo Yoon Seo, Jin Kyo Jung, Yeongtae Kim
openaire +1 more source
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
openaire +2 more sources
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
openaire +2 more sources
Journal of Entomological Science, 2012
Abstract Laboratory assays explored the potential of paichongding, a novel neonicotinoid insecticide, against the brown planthopper, Nilaparvata lugens(Stal) (Homoptera: Delphacidae). Cumulative mortality of N. lugensfollowing exposure was concentration and time dependent.
Xiaowa Qin +6 more
openaire +1 more source
Abstract Laboratory assays explored the potential of paichongding, a novel neonicotinoid insecticide, against the brown planthopper, Nilaparvata lugens(Stal) (Homoptera: Delphacidae). Cumulative mortality of N. lugensfollowing exposure was concentration and time dependent.
Xiaowa Qin +6 more
openaire +1 more source
Philippine Journal of Science
One of the most significant insect pests of maize in the Philippines is the maize planthopper – scientifically known as Peregrinus maidis Ashmead (Hemiptera: Delphacidae) – which can inflict direct damage and spread the two main viral diseases to corn, the Maize mosaic virus, and Maize stripe virus.
Gerald Duza +3 more
openaire +1 more source
One of the most significant insect pests of maize in the Philippines is the maize planthopper – scientifically known as Peregrinus maidis Ashmead (Hemiptera: Delphacidae) – which can inflict direct damage and spread the two main viral diseases to corn, the Maize mosaic virus, and Maize stripe virus.
Gerald Duza +3 more
openaire +1 more source
THE OPTIMUM POPULATION STRATEGY FOR PLANTHOPPERS (HOMOPTERA: DELPHACIDAE) IN STABLE MARSH HABITATS
The Canadian Entomologist, 1978AbstractThe wing-morph composition of populations of planthoppers exploiting stable and temporally uncertain resources was determined. In stable habitats like salt and fresh water marshes, the optimum population strategy of most planthoppers is to produce flightless brachypters which can efficiently use and remain on the immediate resource. Macropters,
openaire +1 more source