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Hiroshi NARITA
1985 Volume 1985 Issue 36 Pages
1-5
Published: November 10, 1985
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Ryosuke TSURUTA
1985 Volume 1985 Issue 36 Pages
6-9
Published: November 10, 1985
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Mitsuyoshi TAKEDA, Tadao SUZUKI
1985 Volume 1985 Issue 36 Pages
10-13
Published: November 10, 1985
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Toshiaki TAKANO, Yuichiro FUJISAKI
1985 Volume 1985 Issue 36 Pages
14-16
Published: November 10, 1985
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Takashi KIDOKORO, Masataka MAEDA
1985 Volume 1985 Issue 36 Pages
17-18
Published: November 10, 1985
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Yuichiro FUJISAKI, Kanji ABE
1985 Volume 1985 Issue 36 Pages
19-21
Published: November 10, 1985
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Tei SATO, Yukio ANDO, Tadao SUZUKI
1985 Volume 1985 Issue 36 Pages
22-24
Published: November 10, 1985
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Shoichi YUUKI
1985 Volume 1985 Issue 36 Pages
25-26
Published: November 10, 1985
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Toshio SUZUKI, Morimi KOBAYASHI, Yujiro KOBAYASHI
1985 Volume 1985 Issue 36 Pages
27-29
Published: November 10, 1985
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Toshimitsu NAGANO, Yuichiro FUGISAKI, Satomi SATO, Kanji ABE
1985 Volume 1985 Issue 36 Pages
30-31
Published: November 10, 1985
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Shuichi ENDO, Takashi SAITO, Takashi SHOJI
1985 Volume 1985 Issue 36 Pages
32-34
Published: November 10, 1985
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Morimi KOBAYASHI, Toshio SUZUKI
1985 Volume 1985 Issue 36 Pages
35-37
Published: November 10, 1985
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Fujio TAKAHASHI, Toshimitsu NAGANO, Satomi SATO
1985 Volume 1985 Issue 36 Pages
38-40
Published: November 10, 1985
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1. Occurrence and Seasonal Prevalence of Wheat and Barley Aphids in Yamagata Prefecture
Takashi SAITO, Takashi SHOJI, Shuichi ENDO, Norio EGUCHI
1985 Volume 1985 Issue 36 Pages
41-44
Published: November 10, 1985
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2. Analysis of Injury to Wheat Caused by Aphids
Takashi SAITO, Shuichi ENDO, Takashi SHOJI
1985 Volume 1985 Issue 36 Pages
45-47
Published: November 10, 1985
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Hitoshi TSUTSUI, Kenpei HONMA
1985 Volume 1985 Issue 36 Pages
48-49
Published: November 10, 1985
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Hidenori TORIKURA
1985 Volume 1985 Issue 36 Pages
50-52
Published: November 10, 1985
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Yoshio MIYAHARA
1985 Volume 1985 Issue 36 Pages
53-55
Published: November 10, 1985
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3. Comparison on Two Different Rearing Methods
Yoshio MIYAHARA
1985 Volume 1985 Issue 36 Pages
56-57
Published: November 10, 1985
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Toshiaki TAKANO
1985 Volume 1985 Issue 36 Pages
58-59
Published: November 10, 1985
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Masahiko SATO
1985 Volume 1985 Issue 36 Pages
60-62
Published: November 10, 1985
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Hirofumi HAYAKAWA, Hitoshi TSUTSUI, Chie GOTO
1985 Volume 1985 Issue 36 Pages
63-65
Published: November 10, 1985
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Masataro SATO
1985 Volume 1985 Issue 36 Pages
66-68
Published: November 10, 1985
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1. Relation between the Depth of Fish Meals Buried and the Attraction of the Seed-corn Maggot
Hirofumi HAYAKAWA, Hitoshi TSUTSUI, Chie GOTO
1985 Volume 1985 Issue 36 Pages
69-70
Published: November 10, 1985
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Masaaki TSUTSUMI, Yasushi MITSUI, Atsuko URAGAMI, Hiroaki YOSHIKAWA
1985 Volume 1985 Issue 36 Pages
71-73
Published: November 10, 1985
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The differences in tolerance of onion varieties to feeding by the onion maggot were successfully tested by the release of reared adults to onion seedlings in vinyl-houses, or to potted onion seedlings in greenhous.
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Tomoaki YAMADA, Ishimatsu MATSUDA
1985 Volume 1985 Issue 36 Pages
74-76
Published: November 10, 1985
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Hitoshi TSUTSUI, Hirofumi HAYAKAWA, Chie GOTO, Tadataka ATSUMI
1985 Volume 1985 Issue 36 Pages
77-78
Published: November 10, 1985
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Hitoshi TSUTSUI, Chie COTO, Hirofumi HAYAKAWA
1985 Volume 1985 Issue 36 Pages
79-80
Published: November 10, 1985
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Hirofumi HAYAKAWA, Hitoshi TSUTSUI, Chie GOTO
1985 Volume 1985 Issue 36 Pages
81-82
Published: November 10, 1985
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Hidenori TORIKURA
1985 Volume 1985 Issue 36 Pages
83-86
Published: November 10, 1985
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Tsugio SASAKI, Yuichi HONDA
1985 Volume 1985 Issue 36 Pages
87-89
Published: November 10, 1985
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Occurrence of Crioceris
qtuatuordecimpanctata on asparagus has been suppressed in ultraviolet absorbing vinyl film greenhouse as compared with an incidence level in a common agricultural vinyl film greenhouse. Suppression of incidence of the beetle resulted in an increased yield of asparagus spears with high quality.
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Masayoshi WAKOU, Mariko ODAGIRI
1985 Volume 1985 Issue 36 Pages
90-93
Published: November 10, 1985
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Hiroshi NARITA, Senichi OSUMI
1985 Volume 1985 Issue 36 Pages
94-96
Published: November 10, 1985
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Mariko ODAGIRI, Tetsuo CHIEDA, Toshiaki TAKANO
1985 Volume 1985 Issue 36 Pages
97-98
Published: November 10, 1985
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Toshio OKU
1985 Volume 1985 Issue 36 Pages
99-102
Published: November 10, 1985
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In the spotted cutworm,
Xestia c-nigrum Lint-16, there is found a high positive correlation between the pupal weight and forewing length. This may allow to use the forewing length as an index for the body size. Forewing length was compared among adults collected at different places between about 40° and 43° N. In the bivoltine populations widely found, the overwintering generation had longer wing than the first generation. Within the same generation, average wing length increased from north to south. This clinal change may correspond to geographic gradient in temperature which restricts the duration of growing season. However, there were little differences in wing length among adults from different altitudes at about 40°N, in spite of wide altitudinal variation in temperature. A possible explanation for this might be provided by assuning an altitudinal migration of local scale by adults. The univoltine strain obtained at a highland at 40°N was almost identical in size with the bivoltine ones of overwintering generation from similar latitudes.
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Toshio OKU
1985 Volume 1985 Issue 36 Pages
103-105
Published: November 10, 1985
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In central Iwate, the summer generation of the spotted cutworm,
Xestia cnigrum Linn, passes six larval instars almost always. Number of instars in the overwintering larvae is more variable, and this makes it difficult to define their overwintering stage. Head capsule measurements showed that they entered hibernation at the stage comparable to the 4th or 5th ins tab, mainly the latter, of the summer generation. Low field temperatures in higher lands between 460 and 700m above sea level did not prevent the larvae to reach this overwintering stage. High mortality of overwintering larvae presumably due to parasitic disease was suggested.
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Hidenori TORIKURA
1985 Volume 1985 Issue 36 Pages
106-109
Published: November 10, 1985
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Tsutomu HASEGAWA, Nobuo YAMASHITA
1985 Volume 1985 Issue 36 Pages
110-113
Published: November 10, 1985
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Semi-field tests were carried out to asses the suppressible effect of the native dung beetle,
Onthophacus lenzii on the emergence of dung-breeding fly,
Musca hervei in both the summer and autumn, 1983. Various sized groups (5, 10, 20 and 40 p airs) of beetles were released to cow dung pats (200 g) with 50 eggs of the fly, respectively.
In general, the higher the releasing density of beetles were, the lesser disappearance rates of the pat and the more decrease in head with of flies were o bserved. Especially the latter trend was more noticeable in the autumn. The number of emerged flies per pat was not influenced by the densities of beetles, and was around 30-40. However, no flies emerged at the highest density of beetles where the pat was almost all buried.
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Kazuhiro AMANO, Tsutomu HASEGAWA, Yoichiro TSUBAKI
1985 Volume 1985 Issue 36 Pages
114-115
Published: November 10, 1985
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Toxicity of permethrin to the horn fly,
Haematobia irr itans (L.) was studied by contact method to insecticide residues, to obtain the fundamental assessment of efficacy of polyvinyl ear tags impregnated with permethrin against the horn fly. The KC-50 (50% knockdown concentration) after half an hour treatment showed 84. 75μ
lm/cm
2. This value was higher than that of BPNIC, and lower than futarthrin and fenitrothion.
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Keiji OHTA, Keise SHIMADA, Sadao WASHIO
1985 Volume 1985 Issue 36 Pages
116-119
Published: November 10, 1985
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Climatic effects on the degree of fungus development of the blast fungus of rice cultivar Mutuhikari (susceptible), Reimei (resistant) and Mutuhonami (moderate) estimated by the leaf sheath inoculation technique was analyzed by multiple.regression analysis.
The meteorological factor and the influence term of this factor that effected the degree of fungus development in the host tissues differed from rice cul-tivars. In the case of rice cultivar Mutuhikari, the complex weather index (mean temperature X sunshine/mean wind speed) and mean wind speed were significant. The influence term of the meteorological factor that effected the degree of fungus development was about 9 to 11 days. In the case of rice. cultivar Reimei, the complex weather index was significant and the influence term of this meteorological factor was about 24 to 25days. In the case of rice cultivar Mutuhonami, sunshine and the complex weather index were significant and the influence term of these meteorological factor was about 17 to 24days.
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Hozumi SUZUKI, Yoshikatsu FUJITA, Ryoichi SONODA
1985 Volume 1985 Issue 36 Pages
120-121
Published: November 10, 1985
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Hozumi SUZUKI, Sholi TAKAHASHI, Yoshikatsu FUJITA, Ryoichi SONODA
1985 Volume 1985 Issue 36 Pages
122-124
Published: November 10, 1985
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Shinzo ABE, San Yuan Zhang, Takehiko SASAKI
1985 Volume 1985 Issue 36 Pages
125-127
Published: November 10, 1985
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Hiroko SAKUMA, Masataka IWANO, Haruo MIURA
1985 Volume 1985 Issue 36 Pages
128-131
Published: November 10, 1985
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Kazuo TSUBOKI, Hiroshi YAEGASHI
1985 Volume 1985 Issue 36 Pages
132-133
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Tsugio SASAKI, Yuichi HONDA
1985 Volume 1985 Issue 36 Pages
134-136
Published: November 10, 1985
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Pyricularia zingiberi, causal organism of blast disease of mioga (
Zingiber mioga), sporulated moderately in the dark. Sporulation of the fungus was enhanced by ultraviolet radiation shorter than 380 nm. On the other hand, blue light (390-540 nm) suppressed the sporulation. Incidence of blast disease of mioga was reduced to less than 10% in ultraviolet absorbingvinyl film greenhouse as compared with incidence levels in a common agricultural vinyl film greenhouse.
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Hozumi SUZUKI, Ryoichi SONODA, Yoshikatsu FUJITA
1985 Volume 1985 Issue 36 Pages
137-140
Published: November 10, 1985
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Ryoso HONKURA, Takashi INOUE, Toshio OIKAWA, Kanji ABE
1985 Volume 1985 Issue 36 Pages
141-143
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Kisaku YANAGITA
1985 Volume 1985 Issue 36 Pages
144-145
Published: November 10, 1985
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Toshio OIKAWA, Ryoso HONKURA, Yuichiro FUJISAKI, Takashi INOUE
1985 Volume 1985 Issue 36 Pages
146-148
Published: November 10, 1985
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