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Yukio HARADA
1988 Volume 1988 Issue 39 Pages
1-8
Published: November 10, 1988
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1. Outbreak of the First Generation and the Causative Factors
Shichiro OKUYAMA, Yoichi KAZINO, Ken SATO
1988 Volume 1988 Issue 39 Pages
9-12
Published: November 10, 1988
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2. Occurence of the Second Generation and the Causative Factors
Shichiro OKUYAMA, Yoichi KAZINO, Ken SATO, Yasuyoshi AKIYAMA, Yozo HAS ...
1988 Volume 1988 Issue 39 Pages
13-17
Published: November 10, 1988
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1. Meteorological Analysis of the Migration
Chikayoshi KITAMURA, Osamu SAITO
1988 Volume 1988 Issue 39 Pages
18-19
Published: November 10, 1988
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2. Occurrence of the First Generation and Percentage of Mating
Osamu SAITO, Chikayoshi KITAMURA
1988 Volume 1988 Issue 39 Pages
20-22
Published: November 10, 1988
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1. Seasonal Trap Catches of Adults, with Referrence to Ovarian Developement and Proportion of Mated Females
Takehiko FUJIMURA, Etsumu ARAYA, Tadao ICHITA, Toshiyuki KIMURA
1988 Volume 1988 Issue 39 Pages
23-28
Published: November 10, 1988
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Toshiyuki KIMURA, Takehiko FUJIMURA
1988 Volume 1988 Issue 39 Pages
29-31
Published: November 10, 1988
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Rice leaves dusted with some insecticides were provided for the fifth or sixth instar larvae of the armyworm kept in plastic boxes, and dead larvae were counted a day and two days later. As theresult, PAP, MEP, MEP·BPMC, ethofenprox, DEP, MPP, pyridaphenthion·MTMC, chlorpyrifos-methyl. BPMC and bensultap·BPMC were highly effective, while PMP, cartap, cartap-BPMC, buprofezin·BPMC and dimethylvinphos·BPMC were far less effective.
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Hiroshi NAKAMINAMI, Takekatsu CHIBA, Masaki ITO, Shozo FUJIOKA, Tadao ...
1988 Volume 1988 Issue 39 Pages
32-34
Published: November 10, 1988
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Seiko KIMURA, Koichi KODAMA
1988 Volume 1988 Issue 39 Pages
35-40
Published: November 10, 1988
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Yukio SATO
1988 Volume 1988 Issue 39 Pages
41-43
Published: November 10, 1988
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1. Factors Causing the Outbreak
Hiroshi FUSE, Takashi SAITO
1988 Volume 1988 Issue 39 Pages
44-48
Published: November 10, 1988
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2. Effect of Injury on Rice Plants
Takashi SAITO, Hiroshi FUSE
1988 Volume 1988 Issue 39 Pages
49-51
Published: November 10, 1988
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Kazuo HIRAI
1988 Volume 1988 Issue 39 Pages
52-57
Published: November 10, 1988
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Wide area outbreaks of
P. separata occurred on mainly pastures from the end of June to the beginning of July in 1987, from Yamaguchi through Honshu to Hokkaido, on the side of the Sea of Japan. Sudden appearance of adults was recorded on and after June 6 with molasses traps set at the pastures in Akita, Morioka and Hokkaido. The number of the adults trapped with a molasses trap from June 1 to 20 in 1987 was from 11 to 221 times as many as that trapped last year. Two low air pressure systems moving from China to Japan between June 1 and 4, and between June 5 and $ could have caried lots of adults which might have emerged from Kyushu to Ishikawa and in China. When the air temperature at an altitude of 1000m rose to about 18°C from June 6 to 7, lot s of adults would have passed over mountains of about 1000m. Some invaded 100km inlands from the seaside of the Sea of Japan, and others reached to the Pacific coastal areas of Tohoku.
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Toshihiko NAKAJIMA, Osamu HORINO
1988 Volume 1988 Issue 39 Pages
59-62
Published: November 10, 1988
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Seven isolates of rice blast differentiated into seven races were mixed and cultured in the potato-sucrose medium containing, yeast extract. Each of them had been avirulent to
indica cultivars. All of 29 monoconidial isolates from the mixed-culture was possessed of virulence to
indica cultivars, of which 17isolates had the pathogenicity of race 337-b
+, 11.had that of race 703 and one had that of race 503. Each isolate of race 337-b
+ has a different pathogenicity to several
indica cultivars with unidentified resistance genes.
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Kiyoshi ISHIGURO, Shin YOSHITAKE, Seiko WATANABE, Fumihiro NEMOTO, Aki ...
1988 Volume 1988 Issue 39 Pages
63-65
Published: November 10, 1988
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The temporal dynamics of the fungicide, fthalide, on rise leaves in the field were monitored via gas chromatography, and the relation between the fungicide doses deposited on leaves and its efficacy was assessed. Initial deposition of the fungicide on various leaf positions was more than 20ppm (per fresh leaves), and these half-life values ranged from 4.0 to 11.3days, respectively. The median effective dose (ED
50) of the fungicide was 0.40ppm. The fungicide was detected from the leaves which did not emerge at the time of fungicide application, of which the doses: ranged from 0.17 to 0.85ppm.
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Yoshikatsu FUJITA, Hiroshi YAEGASHI
1988 Volume 1988 Issue 39 Pages
66-67
Published: November 10, 1988
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Ryoso HONKURA, Toshio OIKAWA, Takashi INOUE
1988 Volume 1988 Issue 39 Pages
68-70
Published: November 10, 1988
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Shinichi TAKEDA, Katsumi OGAWA
1988 Volume 1988 Issue 39 Pages
71-73
Published: November 10, 1988
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1. Synthesis of Disease Model
Keiji OHTA, Teruki IMAI, Keise SHIMADA, Jun-itsu CHIBA
1988 Volume 1988 Issue 39 Pages
74-79
Published: November 10, 1988
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Hozumi SUZUKI
1988 Volume 1988 Issue 39 Pages
80-83
Published: November 10, 1988
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Masakatsu MIURA, Ryoso HONKURA, Yoshio MIURA, Yukihiro OSADA
1988 Volume 1988 Issue 39 Pages
84-87
Published: November 10, 1988
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Ryoso HONKURA, Yoshio MIURA
1988 Volume 1988 Issue 39 Pages
88-91
Published: November 10, 1988
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Ryoichi SONODA, Yoshikatsu FUJITA, Hiroshi YAEGASHI
1988 Volume 1988 Issue 39 Pages
92-93
Published: November 10, 1988
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Yoshio MIURA, Hideaki TSUJI, Masamichi ISHIGAKI
1988 Volume 1988 Issue 39 Pages
94-97
Published: November 10, 1988
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Ryoichi SONODA, Yoshikatsu FUJITA, Ryoso HONKURA, Hiroshi YAEGASHI
1988 Volume 1988 Issue 39 Pages
98-99
Published: November 10, 1988
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Ishimatsu MATSUDA, Satoru SUGIYAMA
1988 Volume 1988 Issue 39 Pages
100-101
Published: November 10, 1988
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Akira SAWASAKI, Hisayasu SATOH
1988 Volume 1988 Issue 39 Pages
102-104
Published: November 10, 1988
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Nobuyuki SHINODA
1988 Volume 1988 Issue 39 Pages
105-107
Published: November 10, 1988
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Takashi NAKAJIMA, Tadayuki GOMI, Masayasu NEMOTO
1988 Volume 1988 Issue 39 Pages
108-109
Published: November 10, 1988
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In vitro studies were carried out to get many microsclerotia (MS) of
Calonectria crotalariae, which is causal fungus of soybean black root rot, and to isolate from other propagules. Thirty days after inoculation many MS were formed. in the triple cellophane layers on the modified PDA (1 %agar, 5 %glucose). When upper layer was stripped, mycelial mats were took off together. Only intact MS remained through the middle layer. It was easy to calculate number of MS and to observe germination in the soybean rizosphere. This method should be of use for studying epidemiology of
C. crotalariae in soil.
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Ryoso HONKURA, Yukio SHIRAKO, Hideaki TSUJI, Yoshio MIURA, Masamichi I ...
1988 Volume 1988 Issue 39 Pages
110-111
Published: November 10, 1988
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Masaharu OZAKI, Jun AKAI, Toshimitsu ENDO, Makoto TAKAKUWA
1988 Volume 1988 Issue 39 Pages
112-117
Published: November 10, 1988
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Shigemi KIKUCHI, Takashi TANAKA, Masamitsu SUZUKI
1988 Volume 1988 Issue 39 Pages
118-120
Published: November 10, 1988
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Fusaharu NAKATANI, Takeshi HIRARAGI
1988 Volume 1988 Issue 39 Pages
121-124
Published: November 10, 1988
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Shigemitsu ARAI, Timao FUKUSIMA, Yahe TANAKA
1988 Volume 1988 Issue 39 Pages
125-127
Published: November 10, 1988
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Tadashi OGATA, Takao MITSUEDA
1988 Volume 1988 Issue 39 Pages
128-130
Published: November 10, 1988
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Iwao MATSUZAKI, Hiroshi HANEDA, Takao MITSUEDA
1988 Volume 1988 Issue 39 Pages
131-132
Published: November 10, 1988
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Tei SATO, Tadao SUZUKI
1988 Volume 1988 Issue 39 Pages
133-134
Published: November 10, 1988
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Masataro SATO, Hiroshi TOGASHI, Einosuko TANIGUCHI, Hitoshi ISHIGAKI
1988 Volume 1988 Issue 39 Pages
135-139
Published: November 10, 1988
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Kazuhiko HACHIYA, Yoichi KAZINO, Yasuyoshi AKIYAMA
1988 Volume 1988 Issue 39 Pages
140-142
Published: November 10, 1988
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Kazuhiko HACHIYA
1988 Volume 1988 Issue 39 Pages
143-145
Published: November 10, 1988
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Kazuhiko HACHIYA
1988 Volume 1988 Issue 39 Pages
146-148
Published: November 10, 1988
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Akiyasu IITOM, Nobuo NAKAMURA, Masahito MATUHASHI
1988 Volume 1988 Issue 39 Pages
149-152
Published: November 10, 1988
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Toshiaki TAKANO
1988 Volume 1988 Issue 39 Pages
153-156
Published: November 10, 1988
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Toru NAGATA, Mitsuyoshi TAKEDA
1988 Volume 1988 Issue 39 Pages
157-161
Published: November 10, 1988
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A technique was developed to measure feeding rates of the green rice leafhopper,
Nephotettix cincticeps Uhler, on small amount of samples. Five μ 1 of sample liquid was administered through stretched Sealon ® filmand reduction in the weight of samples was measured after 6 hours of feeding. Changes in sucrose concentration of samples ranging 0.03-10% did not affect feeding rates. Feeding rates of the green rice leafhopper on the honeydew excreted from the brown planthopper,
Nilaparvata lugens Stal, was compared by this method on 13rice varieties and apparent inhibition of feeding was observed with C-203-1, an Indian variety resistant to the green rice leafhopper.
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Hideki TANAKA, Takekatsu CHIBA, Shouzo FUJIOKA, Tadao CHIBA, Masaki IT ...
1988 Volume 1988 Issue 39 Pages
162-166
Published: November 10, 1988
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Tosimitsu NAGANO, Yuichiro FUJISAKI, Masahide MIYATA
1988 Volume 1988 Issue 39 Pages
167-169
Published: November 10, 1988
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Yozo HASHIMOTO, Tamotsu HARUKI
1988 Volume 1988 Issue 39 Pages
170-172
Published: November 10, 1988
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1. Immigration of Adults
Etsumu ARAYA, Nobuyuki OYAMA, Kenji SUTO
1988 Volume 1988 Issue 39 Pages
173-176
Published: November 10, 1988
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2. Field Research on the Outbreak
Etsumu ARAYA, Nobuyuki OYAMA, Kenji SUTO, Mikio MATSUDA, Yosio IWAMA
1988 Volume 1988 Issue 39 Pages
177-178
Published: November 10, 1988
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Koichi KODAMA, Seiko KIMURA
1988 Volume 1988 Issue 39 Pages
179-181
Published: November 10, 1988
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