Results 141 to 150 of about 3,174 (176)
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Population Biology Of Planthoppers
Annual Review of Entomology, 1990Les interactions plantes-hotes, le cycle biologique, la reproduction et la communication, la dynamique des populations et les ennemis naturels sont examines.
R F Denno, G K Roderick
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Journal of Asia-Pacific Entomology, 2002
Abstract Annual change in insecticide susceptibility of the long-range migrating rice insects, the brown planthopper (BPH) and the white backed planthopper (WBPH), monitored by topical application was reviewed covering temperate and tropical Asia. Monitoring in Japan revealed consistent increase in topical LD50 of BPH for various insecticides during ...
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Abstract Annual change in insecticide susceptibility of the long-range migrating rice insects, the brown planthopper (BPH) and the white backed planthopper (WBPH), monitored by topical application was reviewed covering temperate and tropical Asia. Monitoring in Japan revealed consistent increase in topical LD50 of BPH for various insecticides during ...
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Predator—Planthopper Interactions
1994Parasitoids have been selected often over predators in classical biological control programs because they are generally more host-specific and possess life history traits such as high fecundity, high larval survival, high searching efficiency, short handling time, and low mutual interference, which are thought to be more conducive to pest suppression ...
Hartmut G. Döbel, Robert F. Denno
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Evolution of the planthoppers (Insecta: Hemiptera: Fulgoroidea)
Molecular Phylogenetics and Evolution, 2007The planthopper superfamily Fulgoroidea (Insecta: Hemiptera) comprises approximately 20 described insect families, depending on which classification is followed. Multiple competing hypotheses of fulgoroid phylogeny have been published, based on either morphological character coding or DNA sequence data; however, those hypotheses disagree in several key
Julie M, Urban, Jason R, Cryan
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Brown planthopper infestations alter sugar metabolism in the rice plant as well as brown planthopper
Physiological Entomology, 2021Abstract Carbohydrate plays an important role in rice resistance or tolerance to pests, and also affects the continuous feeding of brown planthoppers (BPHs) on rice. However, the change in the sugar metabolism of BPH and rice plant after BPH infestation is not well studied. In this study, the rice variety Taichung
Yong‐Kang Liu +7 more
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Bacterial reproductive manipulators in rice planthoppers
Archives of Insect Biochemistry and Physiology, 2019AbstractRice planthoppers (Hemiptera: Delphacidae) are notorious pests for rice (Oryza sativa) in Asia, posing a serious threat to rice production and grain security. Rice planthoppers harbor diverse bacterial symbionts, including Wolbachia, Cardinium, Spiroplasma, and Arsenophonus, which are known to manipulate reproduction in arthropod hosts.
Xiao‐Li Bing +2 more
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Journal of Asia-Pacific Entomology, 2001
Intra- and inters-specific effects of Nila parvata lugens (Stal) and Sogatella furcifera (Hor vath) (Homoptera: Delphacidae) on their population performances on Indica Zhe 852, Japonica XiuShui 11 and Hybrid XY 9308 were studied in the labora tory. Intra-specific crowding did not influence the performance of N.
Jiaan Cheng +3 more
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Intra- and inters-specific effects of Nila parvata lugens (Stal) and Sogatella furcifera (Hor vath) (Homoptera: Delphacidae) on their population performances on Indica Zhe 852, Japonica XiuShui 11 and Hybrid XY 9308 were studied in the labora tory. Intra-specific crowding did not influence the performance of N.
Jiaan Cheng +3 more
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Insecticide and Acaricide Tests, 1982
Abstract The pyrethroids, MTI-500 and cypermethrin were applied as 0.0025% sprays and others as 0.075% sprays, equivalent to 0.025 and 0.75 kg ai/ha respectively as based on surface area of the petri dishes in which insects were treated. Treatments were replicated 4 times and consisted of 20 three-day-old adult females per replication.
E. A. Heinrichs, R. P. Basilio
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Abstract The pyrethroids, MTI-500 and cypermethrin were applied as 0.0025% sprays and others as 0.075% sprays, equivalent to 0.025 and 0.75 kg ai/ha respectively as based on surface area of the petri dishes in which insects were treated. Treatments were replicated 4 times and consisted of 20 three-day-old adult females per replication.
E. A. Heinrichs, R. P. Basilio
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