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Tadashi OCHIAT
1991 Volume 1991 Issue 38 Pages
1-7
Published: November 01, 1991
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Hisashi NEMOTO
1991 Volume 1991 Issue 38 Pages
9-13
Published: November 01, 1991
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The production of vegetables in greenhouses in Japan is characterized by an intensive use of pesticides. It is necessary to change chemical control to integrated pest management for avoiding imsecticide resistance problems. Possible ways to reduce pesticide use are discussed. A method of prevention of aphid invasion into the greenhouse and reduction of aphid density on seedlings has been devised for integrated pest control of strawberry grown in the greenhouse.
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Ryutaro KOMORI
1991 Volume 1991 Issue 38 Pages
15-17
Published: November 01, 1991
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Reginal clasification of Ibaraki prefecture was carried out for previse forecasting by Principal Component Analysis of degrees of leaf blast and panicle blast. The degree in occurrence of leaf blast was used from data in late July and panicle blast in late August or early September in 1977-1989 at 150 stations set up on the paddy field, which are the monitoring place of pests and insects. Leaf blast was classified into 7 area, severely occurence area distributed from the north to east in Ibaraki Prefecture. Leaf Blast occured severely in nouth area in 1984, and the east area occured in 1977. Panicle blast was classified into 4 area. Disribute pattern in panicle was not equaled to that of leaf blast. But area of severely occurrence of leaf blast was that of severely occurrence of panicle blast.
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Yoshio WATANABE, Seiichi OKUDA, Tomohide NATSUAKI, Michiaki TERANAKA
1991 Volume 1991 Issue 38 Pages
19-21
Published: November 01, 1991
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Keizo IGUCHI
1991 Volume 1991 Issue 38 Pages
23-24
Published: November 01, 1991
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Tsuneo UETAKE, Satoshi NODA, Yasuaki FUJITA
1991 Volume 1991 Issue 38 Pages
25-26
Published: November 01, 1991
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Satoshi NODA, Yasuaki FUJITA
1991 Volume 1991 Issue 38 Pages
27-28
Published: November 01, 1991
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Ichiro NAKAZAWA, Hiroaki SAITO, Mituyoshi SEKIYA, Mieko NAGAI, Nobuo H ...
1991 Volume 1991 Issue 38 Pages
29-31
Published: November 01, 1991
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Toshio KIJIMA, Yoshitake KUMADA
1991 Volume 1991 Issue 38 Pages
33-34
Published: November 01, 1991
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strain III in two-rowed barley cultivar “Misato Golden” at Ogawa, Simodate city Ibaraki Prefecture
Ikuko TOSHIMA, Ken WATANABE, Yukihiko IIDA
1991 Volume 1991 Issue 38 Pages
35-36
Published: November 01, 1991
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At Ogawa, Shimodate, Ibaraki in 1990, incidence of barley yellow mosaic virus (BaYMV) was monitored in the two-rowed barley cultivar “Misato Golden” whitch is resistant to BaYMV strain I and II. In 11 fields out of 48 planted for “Misato Golden”, BaYMV infection was noticed.
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Syuichi IKEDA, Seiichi OKUDA, Hiromitsu NEGISHI, Tomohide NATSUAKI, Mi ...
1991 Volume 1991 Issue 38 Pages
37-39
Published: November 01, 1991
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Kimiko KATAHIRA, Hiroyuki MIZUNO
1991 Volume 1991 Issue 38 Pages
41-42
Published: November 01, 1991
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Kimiko KATAHIRA
1991 Volume 1991 Issue 38 Pages
43-45
Published: November 01, 1991
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Hideki HARA, Yutaka NAKAMURA
1991 Volume 1991 Issue 38 Pages
47-49
Published: November 01, 1991
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Yasuo KIMURA, Noboru TAKAHASHI
1991 Volume 1991 Issue 38 Pages
51-52
Published: November 01, 1991
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Haruhiko KAGAWA, Kiromi HOSAKA
1991 Volume 1991 Issue 38 Pages
53-54
Published: November 01, 1991
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Irrigation and mulch-removal treatments as practical means to control russet scab of potato caused by
Streptomyces cheloniumii were evaluated in field experiments. These treatments reduced the damage of the disease. Removing mulch in early May followed by irrigating from early May to early June resulted in the most effective control. On the other hand, to irrigate from mid May to early June was proved to be the best measure in the non-mulch treatment.
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Kazufumu NISHI, Hiroyuki HAYASHI, Takeshi SATO, Tokuji FUKUDA
1991 Volume 1991 Issue 38 Pages
55-58
Published: November 01, 1991
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Kazuo SUYAMA, Hiromitsu NEGISHI, Shuichi KAWARABAYASHI, Hiroshi FUJII, ...
1991 Volume 1991 Issue 38 Pages
59-60
Published: November 01, 1991
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Tosimasa SHIRAISHI, Fumio SUNAGA
1991 Volume 1991 Issue 38 Pages
61-62
Published: November 01, 1991
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Kinji USHIYAMA, Mituro KAMEYA-IWAKI, Kaoru HANADA, Masanobu KOBAYASHI, ...
1991 Volume 1991 Issue 38 Pages
63-65
Published: November 01, 1991
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In Kanagawa Prefecture, the virus disease of tomato showing systemic necrotic symptoms was rather widely distributed in 1987-1988. Potatovirus Y-T (PVY-T) was isolated from those tomato plants. In some of those plants, PVY-O was also isolated. Inoculation of PVY-T alone to tomato plants induced systemic necrosis.
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Masanobu KOBAYASHI, Nobuo OHBAYASHI
1991 Volume 1991 Issue 38 Pages
67-68
Published: November 01, 1991
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Maya ISHIZUKA, Jun TAKEUCHI, Toshiichi HIRANO, Koki EIMORI, Hiromichi ...
1991 Volume 1991 Issue 38 Pages
69-70
Published: November 01, 1991
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(1) Bacteriocidal action in vitro
HISAYOSHI YAMAGISHI, KAORU TANAKA, AKIRA KISO
1991 Volume 1991 Issue 38 Pages
71-73
Published: November 01, 1991
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Taeko TAKEUCHI
1991 Volume 1991 Issue 38 Pages
75-77
Published: November 01, 1991
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Masanobu FUKAMI
1991 Volume 1991 Issue 38 Pages
79-81
Published: November 01, 1991
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Dot-immunobinding assay (DIA) was useful for detecting Onion yellow dwarf potyvirus (OYDV) and Garlic latent carlavirus (GLV) from infected Welsh onions. The optimum concentrations of anti-OYDV and anti-GLV γ-globulins were 0.125 and 0.25μg/m
l, respectively. Under these conditions, the reaction end points of crude extracts of OYDV and GLV infected leaves were 1600-fold and 1280-fold, respectively, Viral antigen (VA) solutions were easily prepared from infected leaves as follows: The epidermis of infected leaves were peeled with razor blades. Two μ
l of buffer were put on the wound and mixed with the sap. The mixture was used as the VA solution. The VAs of OYDV and GLV, which were adhered to cellulose nitrate membrane, could be stored for 6 months in a desiccator and could be mailed without reduction of the color intensity of the DIA.
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Toshihiko SHOJI, Kaoru HANADA, Rokuo ZENBAYASHI
1991 Volume 1991 Issue 38 Pages
83-84
Published: November 01, 1991
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Infectivity of 18 cucumber mosaic virus isolates from cucumber plants was tested. Two of the eighteen isolates were shown severe symptom on cucumber plant. We considered that two isolates were suitable to investigate cross protection of attenuated virus.
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Ken WATANABE, Ikuko TOSHIMA, Kei OGAWA
1991 Volume 1991 Issue 38 Pages
85-87
Published: November 01, 1991
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Tomato seedlings were cutted off the root, and were inoculated by dipping into spore suspensions of avirulent
Fusarium oxysporum. After inoculated seedlings were transplanted for roots in the disinfected soil for one week, they were transplanted in
Fusarium contaminated fields. The development in wilting symptom on seedlings with pre-inoculated were weakened equally compared with uninoculated plants.
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Yoshitake KUMADA, Toshio KIJIMA
1991 Volume 1991 Issue 38 Pages
89-90
Published: November 01, 1991
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Tetsuro AMANO, Takeharu KOIZUMI, Kei OGAWA, Yoichi TORIGOE
1991 Volume 1991 Issue 38 Pages
91-92
Published: November 01, 1991
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Kei OGAWA, Hajimu KOMADA, Tetsuro AMANO, Sumio ITO, Toshiyuki MONMA, Y ...
1991 Volume 1991 Issue 38 Pages
93-97
Published: November 01, 1991
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Kazunori ICHIKAWA, Mitsuaki ONO, Shigehumi TSUTIYA
1991 Volume 1991 Issue 38 Pages
99-101
Published: November 01, 1991
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Kazunori ICHIKAWA, Yasushi SHIMIZU, Mitsuaki ONO, Sigehumi TSUTIYA
1991 Volume 1991 Issue 38 Pages
103-105
Published: November 01, 1991
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Seiji UEMATSU, Munenori HOSOYA, Kiichiro SEKIYAMA
1991 Volume 1991 Issue 38 Pages
107-110
Published: November 01, 1991
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Carnations (126 commercial varieties) were tested for their reaction to
Pseudomonas caryophylli in a plastic greenhouse. All varieties tested were susceptible under the conditions of this experiment.
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Seiji UEMATSU, Tomohide NAMEKATA, Kakuro HAYASHI, Rokuro ZENBAYASHI, K ...
1991 Volume 1991 Issue 38 Pages
111-112
Published: November 01, 1991
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Pythium blackleg of Geranium occurred in Saitama Prefecture in 1989. Two
Pythium species were isolated from damaged plants and identified as
P. aphanidermatum and
P. splendens. An inoculation experiment showed that those fungi were the causal agents of the disease.
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Naoko MINEGISHI, Tsutomu KONO, Rokuo ZENBAYASHI
1991 Volume 1991 Issue 38 Pages
113-115
Published: November 01, 1991
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Junnko OGAWA, Kinji USHIYAMA, Kazuo SUYAMA, Hroshi FUJII
1991 Volume 1991 Issue 38 Pages
117-119
Published: November 01, 1991
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Tuneo CHIBA, Hideko KATO, Takesi MOTOZU
1991 Volume 1991 Issue 38 Pages
121-122
Published: November 01, 1991
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Toshio KIJIMA, Yoshitake KUMADA
1991 Volume 1991 Issue 38 Pages
123-124
Published: November 01, 1991
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Kiichi NAKAYAMA, Seiju ISHIKAWA, Emi KUCHII
1991 Volume 1991 Issue 38 Pages
125-126
Published: November 01, 1991
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Mahito NAKAMURA
1991 Volume 1991 Issue 38 Pages
127-128
Published: November 01, 1991
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Akihiko IIJIMA, Satoshi TOKUNAGA, Yoshitane HARA
1991 Volume 1991 Issue 38 Pages
129-131
Published: November 01, 1991
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Akihiko IIJIMA, Tooru YAMASHITA, Hidekazu OGAWA, Yasumitu KAWAI
1991 Volume 1991 Issue 38 Pages
133-134
Published: November 01, 1991
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Takayuki Nakano
1991 Volume 1991 Issue 38 Pages
135-136
Published: November 01, 1991
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Shigeyoshi KOHNUMA, Kazuo TAKEDA, Eiji YOSHIZAWA, Kuniatsu KUWASAWA, I ...
1991 Volume 1991 Issue 38 Pages
137-139
Published: November 01, 1991
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Kaoru EMURA
1991 Volume 1991 Issue 38 Pages
141-143
Published: November 01, 1991
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Shin-ichi UENO
1991 Volume 1991 Issue 38 Pages
145-148
Published: November 01, 1991
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Kuniatsu KUWAZAWA
1991 Volume 1991 Issue 38 Pages
149-151
Published: November 01, 1991
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Kenji KOYAMA
1991 Volume 1991 Issue 38 Pages
153-154
Published: November 01, 1991
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Toru KANDA
1991 Volume 1991 Issue 38 Pages
155-156
Published: November 01, 1991
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Mamoru WATANABE
1991 Volume 1991 Issue 38 Pages
157-158
Published: November 01, 1991
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