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Volume 65 (2014)
- Issue 4 Pages 167-
- Issue 3 Pages 131-
- Issue 2 Pages 45-
- Issue 1 Pages 1-
Volume 65, Issue 4
Displaying 1-5 of 5 articles from this issue
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Original Articles
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Yosaburo UTSUMI, Tsutomu NEGISHI, Masaharu KAMEIArticle type: Original Article
2013 Volume 65 Issue 4 Pages 167-175
Published: December 25, 2014
Released on J-STAGE: February 06, 2015
JOURNAL FREE ACCESSBlattella germanica and Periplaneta fuliginosa were reared with three types of diets (canned beef, fresh cabbage and onions [vegetables], and rat chow) for given days. When several baits were provided to the cockroaches at the same time, the consumption of kelp bait was largest in the two species of cockroach adults in all rearing conditions. Moreover, the bait-preference patterns of P. fuliginosa adults did not change even when the after eclosion period and diet conditions in the nymphal period were changed. In contrast, bait preferences of the two species of cockroach nymphs remarkably changed according to a difference in diet conditions. Generally, consumption of kelp bait was largest in canned beef rearing, and that of silkworm pupa bait was largest in vegetable and rat chow rearing. Moreover, early-instar nymphs of P. fuliginosa had a greater preference for silkworm pupa bait compared with late-instar nymphs. These results indicate that bait preferences are different between adults and nymphs. The change in bait preferences is large in the nymphs, and bait preferences of P. fuliginosa nymphs change during the nymphal period.View full abstractDownload PDF (121K) -
Yosaburo UTSUMI, Tsutomu NEGISHI, Masaharu KAMEIArticle type: Original Article
2014 Volume 65 Issue 4 Pages 177-181
Published: December 25, 2014
Released on J-STAGE: February 06, 2015
JOURNAL FREE ACCESSImmediately after eclosion or hatching Blattella germanica, Periplaneta americana and Periplaneta fuliginosa were reared with three types of diets (canned beef, fresh cabbage and onions [vegetables], and rat chow). The survival time of female and male P. fuliginosa was longest with the vegetable diet, while that of female and male B. germanica and P. americana was longest with the rat chow and canned beef diets. The optimum diet for reproduction was rat chow in B. germanica and P. americana adults, and vegetables in P. fuliginosa adults. The optimum diet for development was rat chow in the three species of cockroach nymphs. These results indicate that optimum diets for survival and reproduction are different between species of adult cockroaches.View full abstractDownload PDF (146K) -
Hiroko SATO, Chihiro SHIBATA, Hiroyuki SAITO, Tsunehisa SUTOArticle type: Original Article
2014 Volume 65 Issue 4 Pages 183-188
Published: December 25, 2014
Released on J-STAGE: February 06, 2015
JOURNAL FREE ACCESSWe confirmed 15 cases of Shimokoshi-type tsutsugamushi disease from 1992 to 2008 in Akita prefecture, Japan. Clinical findings of these cases showed diversity, including mild to severe cases. These cases were widely distributed through Akita prefecture, and the seasonal occurrence was mainly in spring (from April to June) and also in autumn (from October to November).
DNA of the Shimokoshi-type Orientia tsutsugamushi could be detected in three samples using Shimokoshi-type specific PCR including novel primer designed in this study. Additionally, we isolated a strain from one sample by cell culture system, as the second strain of Shimokoshi-type in Japan. It was showed that 10 of 15 patients could not determine of serotype or not diagnosed as tsutsugamushi disease by serological test without Shimokoshi-type antigen at the past time, because of low cross-reactivity between Shimokoshi-type and other antigens (Gilliam, Karp, and Kato). Most of laboratories have not ever used Shimokoshi-type antigen in serological diagnostic test, under the recognition as rare infection with this type.
Hence, it is necessary to improve the diagnosis system for detection of Shimokoshi-type, in addition to investigate about human pathogenicity and vector for Shimokoshi-type.View full abstractDownload PDF (863K) -
Evaluation of the extermination effect of malic acid on Japanese land leeches under field conditionsKeisuke TOYAMA, Yoko HISAMOTO, Takuya HIROSHIMA, Toshihiro YAMADA, Iku ...Article type: Original Article
2014 Volume 65 Issue 4 Pages 189-194
Published: December 25, 2014
Released on J-STAGE: February 06, 2015
JOURNAL FREE ACCESSJapanese land leeches (Haemadipsa zeylanica japonica Whitman) are bloodsucking parasites inhabiting in woodland areas. In order to examine killing effect of malic acid on the leeches, we conducted outdoor spraying tests using malic acid as an active ingredient. In June and October 2013, 33 cages containing 20 leeches each were set up in their natural habitat in Kamogawa city, Chiba Prefecture, Central Japan. Eleven spraying patterns were employed, and groups of 3 cages each were sprayed with different concentrations and amounts of aqueous malic acid solutions or with different additives. The aqueous malic acid solutions killed the land leeches mainly in 1day; this effect was comparable or better than that exerted by commercially available control agents e.g., spraying with 200 mL/m2 of 10% malic acid aqueous solution along with a surfactant killed 86% of land leeches in 1 day except for individuals finally lost. Delayed mortality was not observed. Therefore, malic acid can be used as an effective active ingredient in expellants for control of Japanese land leeches.View full abstractDownload PDF (1311K)
Short Communication
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Daisuke AKAISHI, Koji NAKAMURAArticle type: Short Communication
2014 Volume 65 Issue 4 Pages 195-199
Published: December 25, 2014
Released on J-STAGE: February 06, 2015
JOURNAL FREE ACCESSThe larval feeding habit of Muscina angustifrons (Loew) was investigated by obtaining adults that emerged from mushroom fruiting bodies, in three different locations in central Japan from May to November in 2004 and 2005. The adults of M. angustifrons emerged from 19 mushroom species. Most of them emerged from mushrooms in the families of Amanitaceae, Russulaceae, and Boletaceae that produced large fruiting bodies. The larvae of M. angustifrons could grow to adults by feeding on mushroom fruiting bodies, and also by eating artificial turtle bait. These results suggest that M. angustifrons can utilize diverse food materials as well as mushroom fruiting bodies in the field. Moreover, the third instar larvae preyed on drosophilid larvae in a rearing experiment, suggesting that they prey on other fly larvae in mycophagous fly communities.View full abstractDownload PDF (1024K)
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