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Nobuko YASUDA, Takayuki MITSUNAGA, Keiko HAYASHI, Yoshikatsu FUJITA
2014 Volume 2014 Issue 61 Pages
6-8
Published: December 01, 2014
Released on J-STAGE: December 25, 2015
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Yuriko HAYANO-SAITO
2014 Volume 2014 Issue 61 Pages
9-12
Published: December 01, 2014
Released on J-STAGE: December 25, 2015
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Rice stripe disease is one of the viral diseases caused by
Rice stripe virus (RSV), and can be controlled effectively by using resistant cultivars. The resistance gene introduced into those rice cultivars is
Stvb-i derived from an
indica rice cultivar "Modan". In order to understand the mechanism of the stripe resistance, infection of RSV and disease symptoms were examined in detail in rice resistant cultivars harboring the
Stvb-i gene, “St. No. 1” and “Tsukinohikari”. Several tens of percent of resistant rice plants were infected with RSV, but not all the infected rice plants showed disease symptoms. The concentration of RSV was low and the viral spread to the upper leaves was suppressed in initial stage of RSV infection as compared to the susceptible rice. Taken together with information on RSV infection in the susceptible rice reported by other researchers, the results in this study suggested a quantitative effect of
Stvb-i gene to viral infection and propagation in and around the apical meristem in the initial stage of RSV infection.
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Yuriko OGURA, Hiroshi SAKAI, Jun KOIKE
2014 Volume 2014 Issue 61 Pages
13-17
Published: December 01, 2014
Released on J-STAGE: December 25, 2015
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Taketo ASHIZAWA
2014 Volume 2014 Issue 61 Pages
18-22
Published: December 01, 2014
Released on J-STAGE: December 25, 2015
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Kazumi AOKI, Tomoyuki YOKOSUKA
2014 Volume 2014 Issue 61 Pages
23-25
Published: December 01, 2014
Released on J-STAGE: December 25, 2015
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Masayasu KATO, Junko TAZAWA, Sunao OCHI, Tomiya MAEKAWA, Kazuya MATSUU ...
2014 Volume 2014 Issue 61 Pages
26-30
Published: December 01, 2014
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Akio NAKAGAWA, Yasuhiro INOUE, Sunao OCHI, Yuki TAYA, Yoshihiko UEMATU
2014 Volume 2014 Issue 61 Pages
31-34
Published: December 01, 2014
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Kiichi NAKAYAMA, Kumi AOKI
2014 Volume 2014 Issue 61 Pages
35-36
Published: December 01, 2014
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Takehiro OHKI, Shinichi NUMATA, Hirokazu TOOYAMA, Kazuhiro NAKAHO
2014 Volume 2014 Issue 61 Pages
37-39
Published: December 01, 2014
Released on J-STAGE: December 25, 2015
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Kiichi NAKAYAMA, Koji KAGEYAMA, Hideki WATANABE, Takashi FUKUDA, Seiju ...
2014 Volume 2014 Issue 61 Pages
40-42
Published: December 01, 2014
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Masaharu KUBOTA, Tomoo MISAWA
2014 Volume 2014 Issue 61 Pages
43-46
Published: December 01, 2014
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In November 2007, fruits of okra (
Abelmoschus esculentus) cultivated in a nursery were found rotted in Mie prefecture. Petals had not fallen and remained on the fruits. The causal agent of the fruit rot with a pale brown color was identified to
Botrytis cinerea and that with a white color as
Sclerotinia sclerotiorum. On the other hand, leaf rot of okra was found in a nursery in Hokkaido in July 2008. Rotted petals remained on the leaves after falling from fruits. The causal agent was also identified as
B. cinerea. This is the first report of okra diseases during cultivation caused by
B. cinerea and
S. sclerotiorum in Japan.
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Masashi FUJINAGA, Naho YAMAGISHI, Yoshiyuki ISHIYAMA, Eiji YOSHIZAWA
2014 Volume 2014 Issue 61 Pages
47-49
Published: December 01, 2014
Released on J-STAGE: December 25, 2015
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Youhei KANEKO, Seisaku UMEMOTO, Shingo USHIO
2014 Volume 2014 Issue 61 Pages
50-55
Published: December 01, 2014
Released on J-STAGE: December 25, 2015
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Youhei KANEKO, Azusa SHIOTA, Takeshi SUZUKI, Tatsuya SUZUKI, Yurika MI ...
2014 Volume 2014 Issue 61 Pages
56-59
Published: December 01, 2014
Released on J-STAGE: December 25, 2015
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Youhei KANEKO, Azusa SHIOTA, Tatsuya SUZUKI, Takeshi SUZUKI, Yurika MI ...
2014 Volume 2014 Issue 61 Pages
60-63
Published: December 01, 2014
Released on J-STAGE: December 25, 2015
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Yoshihiko KANEGAE, Yasunori TSUTAKI, Akihiro YOSHIDA, Seiji UEMATSU
2014 Volume 2014 Issue 61 Pages
64-66
Published: December 01, 2014
Released on J-STAGE: December 25, 2015
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Tsuyoshi ONO, Tomoko OHTA, Satoshi KAGIWADA, Yuji SUGAWARA, Noriko AMI ...
2014 Volume 2014 Issue 61 Pages
67-69
Published: December 01, 2014
Released on J-STAGE: December 25, 2015
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Rhizopus rot of mango, atemoya and white sapote fruits occurred on Chichijima in Ogasawara (Bonin) Islands in 2012 and 2013. Fungi isolated from the disease plants were identified as
Rhizopus stolonifer var.
stolonifer. Inoculation tests confirmed that this fungus was the causal agent of the diseases. This is the first report of these diseases in Japan.
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Haruna IIHAMA, Jun TAKEUCHI, Yuri SASAI, Yukiko OBA, Tsuyoshi ONO, Sat ...
2014 Volume 2014 Issue 61 Pages
70-73
Published: December 01, 2014
Released on J-STAGE: December 25, 2015
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Passiflora root-rot of
Passiflora edulis Sims. occurred on Hachijo Island of Tokyo Metropolis in 2012. Two species of
Globisporangium (
Pythium) isolated from the diseased plants were identified as
G. splendens and
G. irregurale based on morphological characteristics as well as molecular analyses of the rDNA-ITS region. Inoculation tests showed that these fungi were the causal agents of the disease. This is the first report of the disease in Japan.
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Remi ICHINOSE, Kotone MORITA, Yuri SASAI, Sayaka TACHI, Yutaro YOSHIZA ...
2014 Volume 2014 Issue 61 Pages
74-77
Published: December 01, 2014
Released on J-STAGE: December 25, 2015
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Southern blight of fish mint
Houttuynia cordata, geranium herb
Geranium thunbergii and American mandrake
Podophyllum peltatum occurred in Tokyo Metropolis and Saitama Prefecture in 2012. The causal fungus isolated from the diseased plants was identified as
Sclerotium rolfsii Sacc. based on morphological characteristics as well as molecular analyses of the rDNA-ITS region. Inoculation tests confirmed that the fungus was a causal agent of these diseases. This is the first report of the disease in Japan.
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Masanobu FUKAMI, Eriko KUNITOMO, Tomofumi MOCHIZUKI
2014 Volume 2014 Issue 61 Pages
78-81
Published: December 01, 2014
Released on J-STAGE: December 25, 2015
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Yoshihiko KANEGAE, Masako TAKEUCHI, Chika TANAKA, Miki KATO, Seira HAY ...
2014 Volume 2014 Issue 61 Pages
82-84
Published: December 01, 2014
Released on J-STAGE: December 25, 2015
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Haruna IIHAMA, Yuna IIJIMA, Jun TAKEUCHI, Tsuyoshi ONO, Yutaro YOSHIZA ...
2014 Volume 2014 Issue 61 Pages
85-90
Published: December 01, 2014
Released on J-STAGE: December 25, 2015
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Penicillium leaf spot of mouse thorn (
Ruscus hypoglossum L.) and anthracnose of fairy bells (
Disporum pullum) occurred on Hachijo Island of Tokyo Metropolis in 2011 and 2012, respectively. The causal fungi isolated from the diseased plants were identified as
Penicillium copticola Houbraken, Frisvad & Samso on mouse thorn and
Colletotrichum kahawae J. M. Waller & Bridge (
C. gloeosporioides species complex) on fairy bells. Inoculation tests showed that each of the two fungi was the causal agent of the disease, respectively. This is the first report of the diseases in Japan.
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Kotone MORITA, Yutaro YOSHIZAWA, Noriko ORIHARA, Ichiro CHIKAOKA, Sato ...
2014 Volume 2014 Issue 61 Pages
91-95
Published: December 01, 2014
Released on J-STAGE: December 25, 2015
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Yuna IIJIMA, Sayaka TACHI, Yuri SASAI, Kotone MORITA, Remi ICHINOSE, Y ...
2014 Volume 2014 Issue 61 Pages
96-98
Published: December 01, 2014
Released on J-STAGE: December 25, 2015
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Southern blight of mukdenia (
Mukdenia rossii) and lily of the valley (
Convallaria majalis var.
majalis) occurred in Tokyo Metropolis and Saitama Prefecture in summer 2013. The causal fungus isolated from the diseased plants was identified as
Sclerotium rolfsii Sacc. based on morphological characteristics as well as molecular analyses of the rDNA-ITS region. Inoculation tests confirmed that the fungus was a causal agent of the diseases. This is the first report of the diseases in Japan.
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Yuri SASAI, Sayaka TACHI, Misako SHIMURA, Moe SAKAGUCHI, Aya OZAWA, Yu ...
2014 Volume 2014 Issue 61 Pages
99-102
Published: December 01, 2014
Released on J-STAGE: December 25, 2015
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In 2012, pineapple lily (
Eucomis autumnalis), prairie poppy mallow (
Callirhoe involucrata), creeping phlox (
Phlox stolonifera) and white cup (
Nierembergia rivularis) were blighted in flower beds in Saitama Pref., and similar symptoms occurred in melampodium (
Melampodium paludosum) in flower beds in Tokyo Metro. The pathogens isolated from each diseased plant were identified as
Sclerotium rolfsii by morphological observations. In addition, the homology of the rDNA-ITS region is high to that of
S. rolfsii. This is the first report of the diseases in Japan.
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Sayaka TACHI, Yuri SASAI, Yutaro YOSHIZAWA, Nori KONISHI, Satoshi KAGI ...
2014 Volume 2014 Issue 61 Pages
103-107
Published: December 01, 2014
Released on J-STAGE: December 25, 2015
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Southern blight of
Centaurea montana,
Chrysanthemum makinoi,
Verbena ×
hybrida,
Rehmannia elata,
Thymus serpyllum,
Lychnis coronaria,
Phlox paniculata and
Geranium sanguineum occurred at several flowerbeds in Saitama Pref. in 2013. The causal fungus isolated from each diseased plant was identified as
Sclerotium rolfsii Sacc. by morphological observations as well as molecular analyses of the rDNA-ITS region. Inoculation tests showed that the fungus was the causal agent of the disease. This is the first report of this disease on these plants in Japan.
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Misaki ABE, Kasumi ONO, Yutaro YOSHIZAWA, Noriko ORIHARA, Teiichi HORI ...
2014 Volume 2014 Issue 61 Pages
108-113
Published: December 01, 2014
Released on J-STAGE: December 25, 2015
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Satoshi MURAZAKI, Shinichi NUMATA, Takayuki OGAWA, Yasunori TOMITA
2014 Volume 2014 Issue 61 Pages
114-116
Published: December 01, 2014
Released on J-STAGE: December 25, 2015
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Kyoko YOKOUCHI, Taichi FUNAKUBO, Yoshihiro KUNITOMO, Yuichi TAKIKAWA
2014 Volume 2014 Issue 61 Pages
117-118
Published: December 01, 2014
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Masaji MORISHIMA, Miyako YAMASHIRO, Takamitsu WAKI, Kanae MATSUMOTO, T ...
2014 Volume 2014 Issue 61 Pages
119-121
Published: December 01, 2014
Released on J-STAGE: December 25, 2015
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Eriko MAENO, Riho MIZUTA, Kazuki MOROHASHI, Akira KAWAI, Fumiya NAGAO, ...
2014 Volume 2014 Issue 61 Pages
122-126
Published: December 01, 2014
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Riho MIZUTA, Eriko MAENO, Fumiya NAGAO, Ai NOBUHARA, Michio ENDO, Akir ...
2014 Volume 2014 Issue 61 Pages
127-129
Published: December 01, 2014
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Naoto HARUYAMA
2014 Volume 2014 Issue 61 Pages
130-131
Published: December 01, 2014
Released on J-STAGE: December 25, 2015
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Koukichi NAGASAKA, Takayuki MITSUNAGA, Chie GOTO
2014 Volume 2014 Issue 61 Pages
132-136
Published: December 01, 2014
Released on J-STAGE: December 25, 2015
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Ken SHIMIZU, Tooru OOTANI, Toshiyuki KAWANA, Masaki ENDOU
2014 Volume 2014 Issue 61 Pages
137-140
Published: December 01, 2014
Released on J-STAGE: December 25, 2015
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We investigated susceptibility to two diamide and ten other insecticides in four local populations of the diamondback moth,
Plutella xylostella collected from cabbage (
Brassica oleracea var.
capitata) fields in Asahi City, a rape flower (
Brassica rapa var.
nippo-oleifera) field and a daikon (
Raphanus sativus var.
longipinnatus) field in Minamibousou City from October to December 2013 in Chiba Prefecture. For the larvae of two Asahi populations, fed with cabbage leaf disks treated with flubendiamide or chlorantraniliprole, the corrected mortalities at 72 hours after treatment were zero and the leaf areas damaged by the larvae were not significantly different from that of the control, showing a reduced susceptibility to these diamide insecticides. On the other hand, these diamide insecticides were highly effective against two Minamibousou populations. Spinetoram, emamectin benzoate, indoxacarb, tolfenpyrad, Bt and cartap hydrochloride were highly effective against all four populations.
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Takeshi SHIMODA, Kazushi HANYU, Toshiyuki TEZUKA, Chie GOTO, Yooichi K ...
2014 Volume 2014 Issue 61 Pages
141-144
Published: December 01, 2014
Released on J-STAGE: December 25, 2015
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We investigated the influence of sugar foods presented in a bottle-type feeding device on female longevity and life-time fecundity of
Cotesia vestalis, a larval parasitoid of the diamondback moth
Plutella xylostella. Solutions of honey and sugar mixture (sucrose, glucose and fructose) prolonged female longevity significantly more than water, irrespective of the mating status and oviposition experience. These sugar foods also significantly enhanced life-time fecundity of mated parasitoids more than water. We also investigated the continuity of these sugar foods in bottle-type feeding devices installed in a greenhouse for different periods (30 and 120 days). Even 120 days after the installation of these feeding devices, honey and sugar mixtures in feeding devices could respectively enhance female longevity in laboratory experiments. These results indicated that those sugar foods provided by bottle-type feeding devices are useful for maintaining the parasitoids for at least several months in a greenhouse where potential sugar sources (e.g. flowers) are limited.
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Kentaro IKEDA, Atsuhiko KUSHIDA, Katsuya KUWABARA, Makoto FUJIMURA, Sh ...
2014 Volume 2014 Issue 61 Pages
145-148
Published: December 01, 2014
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Kazuhide UCHIDA, Yoshiteru MURAKAMI, Kyoko WATAUCHI, Yukihiro KUNUGI
2014 Volume 2014 Issue 61 Pages
149-152
Published: December 01, 2014
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Daiki YAMAZAKI, Kyo ITOYAMA
2014 Volume 2014 Issue 61 Pages
153-154
Published: December 01, 2014
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Naoto HARUYAMA
2014 Volume 2014 Issue 61 Pages
155-158
Published: December 01, 2014
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Akihito OZAWA, Toru UCHIYAMA
2014 Volume 2014 Issue 61 Pages
159-162
Published: December 01, 2014
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The effects of several insecticides on the emergence of the parasitoid,
Encarsia smithi (Silvestri) parasitizing the tea spiny whitefly
Aleurocanthus camelliae Kanmiya & Kasai were evaluated by both laboratory and field experiments. Tea leaves with the pupae of
A. camelliae parasitized by
E. smithi were collected from a tea field and these leaves were dipped in 13 insecticides diluted with water to ordinary use concentration, and the emergence rate of the parasitoid was checked one month after the treatments in the laboratory experiment. In the field experiment, the emergence rate of the parasitoids was checked 70 days after the application of 13 insecticides in a tea field. The results of these experiments showed that machine oils (two dilutions), methidathion, profenofos and tolfenpyrad were seriously harmful; clothianidin, spinetoram, fenpyroximate·bupurofezin mixer, and methomyl were slightly harmful; and spiromesifen, chlorfenapyr, pyrifluquinazon and diafenthiuron were harmless on the emergence of
E. smithi.
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