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Osamu KIKUCHI, Masahisa MIYAZAKI
1993 Volume 1993 Issue 44 Pages
159-160
Published: November 30, 1993
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Osamu KIKUCHI
1993 Volume 1993 Issue 44 Pages
161-163
Published: November 30, 1993
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Kazuhiro WATANABE, Shoichi YUUKI
1993 Volume 1993 Issue 44 Pages
164-166
Published: November 30, 1993
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Junichi KANEKO
1993 Volume 1993 Issue 44 Pages
167-168
Published: November 30, 1993
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From Novernber 1990 to April 1991, supercooling Point (SCP) of eggs of
Myzus mumecola was measured every month in Sapporo. Lowest mean SCP was observed in January. Mean SCP values were below-30°C from November to March and became above-30°C in April.
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(I) Species and the Seasonal Prevalence Obtained by the Bait Trap
Masatake SASAKI, Noriyoshi ABE
1993 Volume 1993 Issue 44 Pages
169-171
Published: November 30, 1993
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Masahide MIYATA
1993 Volume 1993 Issue 44 Pages
172-174
Published: November 30, 1993
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Masahide MIYATA, Ko ONUMA
1993 Volume 1993 Issue 44 Pages
175-177
Published: November 30, 1993
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1. Seasonal Prevalence and Injury Pattern on the First Generation
Toshio SUZUKI
1993 Volume 1993 Issue 44 Pages
178-180
Published: November 30, 1993
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2. Seasonal Prevalence and Injury Pattern on the Second Generation
Toshio SUZUKI
1993 Volume 1993 Issue 44 Pages
181-183
Published: November 30, 1993
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Yoshiko FUJIBAYASHI, Norio SEKITA
1993 Volume 1993 Issue 44 Pages
184-186
Published: November 30, 1993
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The development and diapause induction in the Kanzawa spider mite,
Tetranychus kanzawai, were elucidated under the photoperiod of LD 10: 14h combined with constant temperatures of 20, 22 and 25°C. The developmental time (D) from the egg to adult stages was 19, 16 and 12 days at 20, 22 and 25°C, respectively. The relationship between velocities of development (V=1/D) and temperatures (t) was V=-0.0564+0.0055t (r
2=0.993). Hence, the developmental zero and the effective accumulative temperature were 10.3°C and 183 day-degrees, respectively. The proportion of survival to the adult stage was about 80% on average. The sex ratio was female biased and averaged 67%. The percentage of diapause increased as temperatures lowered and 100% of females entered diapause at 16°C.
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Ken FUNAYAMA, Yuji TAKAHASHI
1993 Volume 1993 Issue 44 Pages
187-188
Published: November 30, 1993
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The diapause two-spotted spider mite T
etranychus urticae Koch were susceptible to Polinactins BPMC and Tebufenpyrad, but less susceptible to Fenpyroximate, Pyridaben and BPPS. In the field, the application with Polinactins BPMC afforded good effect to these mites which exist on the leaves. But many diapause mites moved into hivernating sites before application, therefore the effect of control was not evident.
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Toshio MASUDA
1993 Volume 1993 Issue 44 Pages
189-190
Published: November 30, 1993
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Verticillium lecanii (MG-V1-18) isolated from
Trialeurodes vaporariorum was pathogenic to larvae of
Bemisia tabaci. MG-V1-18 seems to be a promising agent for the microbial control of
Bemisia tabaci.
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Toshio MASUDA, Osamu KIKUCHI
1993 Volume 1993 Issue 44 Pages
191-193
Published: November 30, 1993
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The ability of
Verticillium lecanii preparation (NR-3) to control whitefly,
Trialeuodes vaporariorum, on tometoes in plastic house was investigated. NR-3 was sprayed on 10 and 17 July, 1992. Number of larvae was reduced from 17 July, and then maintained low levels. Twice applications of NR-3 controlled whitefly populations as satisfactorily as those of DMTP wp.
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Kazuhiro AMANO, Tsutomu HASEGAWA
1993 Volume 1993 Issue 44 Pages
194-196
Published: November 30, 1993
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Experiments were conducted to determine the effects of adult diets on the survival and reproductive potential of
Musca hervei Vill. to establish the practical rearing method of the fly. The adults deposited eggs successfully enough to maintain the colony with a diet of cattle dung, powdered milk, brain-heart infusion and water
adlibitum. Cattle dung was considered available only for oviposition and no use in adult diet. Cattle blood, however, was useful in promoting egg production but not indispensable for the rearing.
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Kazuhiro AMANO
1993 Volume 1993 Issue 44 Pages
197-199
Published: November 30, 1993
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Pyriproxyfen, an analogue of insect juvenile hormone, was tested for effects on the development in the two types of dung-breeding Diptera:
Musca hervei type and M
. domestica type.
All of the three species (including one strain) showed a dose-mortality correlation. Their IC-50 values were calculated to be 0.0021-0.0926 μg / g cow dung medium. However, no prolonged developmental period or no enlarged adults was observed at any dose level in any species tested. These phenomena would show a difficulty in distinguishing between the two types by using pyriproxyf en.
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Kazuhiro AMANO
1993 Volume 1993 Issue 44 Pages
200-201
Published: November 30, 1993
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Newly hatched larvae of
Orthellia caesarion Meigen were transferred to cattle dung and reared until adult emergence at some different larval density levels between 6 and 101 larvae/40g dung. Fair reduction in the size of emerged adults and shortening of the developmental period from larvae to adults were observed at high larval densities but no marked increase in mortality in immature stages was observed there. These phenomena show that
Orthellia caesarion belongs to the so-called
Musca hervei type group.
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9. Emergence of Beetles Reared by Livestock Dung with Different Component of Feed
Hirofumi HAYAKAWA, Nobuo YAMASHITA
1993 Volume 1993 Issue 44 Pages
202-203
Published: November 30, 1993
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Dungs of livestock which were fed with different component feed were tested as diets of the beetles. Sheep dung did not produce any progeny. The dung of raising beef cattle which was fed with hay only produced least emergent adults. On the other hand, the dungs of milking dairy cattle and fattening beef cattle which were fed with solgum silage and concentrate produced as many progeny as the dung of pasturing beef cattle.
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10. Relationship between the Surface Area of Medium and the Number of Brood Balls Produced
Hirofumi HAYAKAWA, Nobuo YAMASHITA
1993 Volume 1993 Issue 44 Pages
204-205
Published: November 30, 1993
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The surface area of medium less than 314cm
2 did not produce any live pupae, when tested in the parential density of 4 pairs. Compared to the area of 864cm
2 (the container previously reported), those of 1350 and 1963cm
2 showed a tendency to produce more brood balls with live larvae and pupae. While in the largest one of 4163cm
2, the number of live pupae rather decresed. On the whole, brood balls were formed in the periphery of the containers.
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Hirofumi HAYAKAWA, Hiroshi NISHIJIMA
1993 Volume 1993 Issue 44 Pages
206-208
Published: November 30, 1993
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Nine species of Tabanidae, 7 species of Simuliidae, 1 species of Muscidae and 2 species of Culicidae were recorded as blood-sucking flies by CO
2-lured mosquito-net traps and hand sampling at Ohtaki-mura, Iburi-shicho in Hokkaido.
Tabanus rufidens and
Simulium japonicum would be the control target for the resort area development at this place.
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1993 Volume 1993 Issue 44 Pages
209-223
Published: November 30, 1993
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