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Serguei Vladimirovich Triapitsyn,Hsien-Tzung Shih 한국응용곤충학회 2014 Journal of Asia-Pacific Entomology Vol.17 No.4
Pseudoligosita nephotetticum (Mani) (Hymenoptera: Trichogrammatidae) and Gonatocerus (Cosmocomoidea) sp. (Hymenoptera: Mymaridae) have been identified for the first time as egg parasitoids of the sharpshooter leafhopperKolla paulula (Walker) (Hemiptera: Cicadellidae: Cicadellinae: Cicadellini) in Taiwan. K. paulula hasbeen recently identified as a candidate vector of the phytopathogenic bacterium Xylella fastidiosa, the causativeagent of Pierce's disease of grapes and similar diseases of other affected plants in Taiwan, and thus has becomeof particular economic importance. Also provided is a summary of the known records of egg parasitoids(Mymaridae and Trichogrammatidae) of other leafhoppers fromthe tribe Cicadellini in theworld, as well as taxonomicnotes on P. nephotetticum.
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Triapitsyn Serguei Vladimirovich,Shih Hsien-Tzung,Huang Shou-Horng,Tseng Mei-Jung 한국응용곤충학회 2021 Journal of Asia-Pacific Entomology Vol.24 No.1
Fairyfly egg parasitoids (Hymenoptera: Mymaridae) of rice leafhoppers and planthoppers (Hemiptera: Cica dellidae and Delphacidae) known from Taiwan are identified taxonomically, keyed, and illustrated. Their host associations are determined by rearings using sentinel eggs of mainly four key pest species. The previously published records of such egg parasitoids in Taiwan are critically analyzed in the unfortunate absence of almost any voucher specimens. Three species of Mymaridae are shown to be the predominant egg parasitoids of one leafhopper and three planthopper major pests of rice in Taiwan: Anagrus (Anagrus) incarnatus Haliday of the green rice leafhopper Nephotettix cincticeps (Uhler) and the delphacids Laodelphax striatella (Fallén) (small brown planthopper), Nilaparvata lugens (Stål) (brown planthopper), and Sogatella furcifera (Horváth) (whitebacked planthopper), as well as Gonatocerus aegyptiacus Soyka and Mymar taprobanicum Ward of N. cincticeps. The zig-zag leafhopper Maiestas dorsalis (Motschulsky), which is also common in paddy fields, is newly recorded as a host for A. incarnatus, G. aegyptiacus, Lymaenon litoralis (Haliday), and M. taprobanicum. Additional new records of some other Mymaridae in Taiwan, mostly from the rice field agroecosystems, are indicated. Litus assamensis Rehmat and Anis, syn. nov. from India, is synonymized with L. sutil Triapitsyn and Berezovskiy from Thailand, which is also newly recorded from Taiwan.
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Shu-Chen Chang,Hsien-Tzung Shih,Kuang-Hui Lu 한국응용곤충학회 2019 Journal of Asia-Pacific Entomology Vol.22 No.1
Nymphs of xylophagous spittlebug Poophilus costalis (Walker, 1851) produce froth that covers their entire body surface. However, no mold has ever been found on this froth under natural conditions. This study has shown that the froth of P. costalis can repress the growth of Fusarium oxysporum f. sp. pisi. Three chitinases, i.e., β-N-acetylglucosaminidase, chitobiosidase, and endochitinase, with specific activities of 1.759, 0.365, and 1.172 U/mg protein, respectively, and a protease with minimal activity have been detected in this froth. β-N-actylglucosaminidase activity was also detected in the source of the froth, the nymphal Malpighian tubules and the host plant Commelina diffusa Burm. f. These findings suggest that the antifungal effect of the froth from P. costalis may be attributed to the chitinase produced by its Malpighian tubules and/or its host plant.
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Serguei Vladimirovich Triapitsyn,Hsien-Tzung Shih,Shou-Horng Huang 한국응용곤충학회 2020 Journal of Asia-Pacific Entomology Vol.23 No.4
Trichogrammatid egg parasitoids (Hymenoptera: Trichogrammatidae) of rice leafhoppers and planthoppers (Hemiptera: Cicadellidae and Delphacidae) known from Taiwan are identified taxonomically and illustrated, and their host associations are determined by rearings using sentinel eggs of the key pest species. The previously published records of such egg parasitoids in Taiwan are critically analyzed in the unfortunate absence of almost any voucher specimens. Pseudoligosita nephotetticum (Mani) is shown to be the most common egg parasitoid of the two leafhopper and three planthopper pests of rice in Taiwan: the zig-zag leafhopper Maiestas dorsalis (Motschulsky) (a new host record), the green rice leafhopper Nephotettix cincticeps (Uhler), and the delphacids Laodelphax striatella (Fallén) (small brown planthopper), Nilaparvata lugens (Stål) (brown planthopper), and Sogatella furcifera (Horváth) (whitebacked planthopper). Paracentrobia (Brachistella) andoi (Ishii) syn. nov., originally described from Japan as Japania andoi Ishii, and Paracentrobia (Brachistella) garuda Subba Rao syn. nov. from Thailand are synonymized under Paracentrobia (Brachistella) bicolor (Girault) from northern Queensland, Australia; Pseudoligosita tachikawai (Yashiro) syn. nov., originally described as Oligosita tachikawai Yashiro from Japan, is synonymized under Pseudoligosita nephotetticum. Lectotypes are designated for Japania andoi and Oligosita shibuyae Ishii.
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Rong-Jen Shiau,Yu-Der Wen,Hsien-Tzung Shih,Shin-Yi Chen,Chiou-Chu Su,Wei-Huang Tsai 한국응용곤충학회 2011 Journal of Asia-Pacific Entomology Vol.14 No.4
Xylophagous leafhoppers are vectors of xylem-limited plant pathogens such as citrus variegated chlorosis (CVC) and Pierce's disease, which cause Xylella diseases. Currently, no cure for Xylella diseases exists. The objective of endosymbiont control using Wolbachia pipientis is to reduce the populations of insect vectors,potentially preventing the expansion of Xylella diseases. The purpose of this study was to establish primary cell cultures from adult xylem-feeding leafhoppers to study Wolbachia biology. Cells from adult male and female Kolla paulula (Walker) (Hemiptera: Membracoidea: Cicadellinae) were successfully cultured in Dulbecco's Modified Eagle Medium containing 20% fetal bovine serum and were maintained for more than 6 months. Cells of both male and female adults are round and semi-attached. The doubling times for male and female K. paulula cells are approximately 8 and 10 days, respectively. The presence of Wolbachia in K. paulula cell cultures was detected by polymerase chain reaction (PCR) amplification of Wolbachia surface protein (wsp) gene. The cell cultures developed in this study may be useful in studying interactions between Wolbachia and its hosts of different genders.
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