Medical Entomology and Zoology
Online ISSN : 2185-5609
Print ISSN : 0424-7086
ISSN-L : 0424-7086
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Volume 13, Issue 2
Displaying 1-11 of 11 articles from this issue
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  • [title in Japanese]
    Article type: Cover
    1962 Volume 13 Issue 2 Pages Cover4-
    Published: May 31, 1962
    Released on J-STAGE: September 05, 2016
    DOIhttps://doi.org/10.7601/mez.13.Cover4
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    Article type: Index
    1962 Volume 13 Issue 2 Pages Toc1-
    Published: May 31, 1962
    Released on J-STAGE: September 05, 2016
    DOIhttps://doi.org/10.7601/mez.13.Toc1
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  • Studies on the Japanese psocid insects as stored products pest, III
    Shigeko Tada
    Article type: Article
    1962 Volume 13 Issue 2 Pages 99-104
    Published: May 31, 1962
    Released on J-STAGE: September 05, 2016
    DOIhttps://doi.org/10.7601/mez.13.99
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    In this report three forms of the simulans-group of the genus Liposcelis were described for the first time in Japan. L. simulans Race A and L. s. Race B were compared with the corresponding British races as described by Broadhead. L. s. Race B seems to be extremely allied to L. terricolis Badonnel. A single female specimen, here treated as L. sp., was found in a case containing dried noodle in Tokyo, and is somewhat allied to L. s. Race B. But the chaetotaxy of the setae on the lateral lobe of pronotum rather resembles to that of L. liparus (Broadhead, 1947), it has a distinct frontal suture and the setae of the abdominal end are shorter.
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  • Studies on the environmental factors for the breeding of grain mites. Part III : On the breeding of Tyrophagus dimidiatus in various drug samples
    Katsuhiko Matsumoto
    Article type: Article
    1962 Volume 13 Issue 2 Pages 105-111
    Published: May 31, 1962
    Released on J-STAGE: September 05, 2016
    DOIhttps://doi.org/10.7601/mez.13.105
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    In accordance with the facts that some acaroid mites have been reported to breed in certain drug samples in Japan, experiments were made to know the rates of breeding of Tyrophagus dimidiatus in 120 kinds of drugs. Three gramms of each sample was placed in inner vial of a double glass chamber, to which about 300 mites were released and saturated KCl solution was put into the outer vial to regulate the relative humidity at 85%. The vials were kept in an incubator at 25℃, and the number of mites per 0.5gm. of the sample as well as thier rates of survival was observed at the interval of two weeks until the fifteenth week. The results may be summarized as follows. A. Drugs in which remarkable reproduction of more than 500 mites per 0.5gm. was observed are most of the enzyme and protein samples. B. Drugs in which slight reproduction was observed are some of the above kinds of drugs and some tablets and powder drugs containing starch or lactose. C. Drugs in which no reproduction occurred but the survival of placed mites was observed more than two weeks are : most inorganic and organic compounds with no miticidal actions. D. Drugs in which prompt death of the mites was observed are some organic or inorganic compounds presumably with miticidal effects.
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  • On the incidence of mosquitoes collected by light trap at Kurashiki in 1961
    Seiiti Inatomi, Humio Osaki, Daigoro Sakumoto, Yoshikazu Oka, Kazuo It ...
    Article type: Article
    1962 Volume 13 Issue 2 Pages 112-115
    Published: May 31, 1962
    Released on J-STAGE: September 05, 2016
    DOIhttps://doi.org/10.7601/mez.13.112
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    As one of the extensions of our serial study on Japanese B encephalitis started in 1950, we collected mosquitoes from May through September, 1961 mostly at Kurashiki City and a single spot of Okayama City. This year the light trap was improved and a set of home-made saran-wire filter and nylon net was used instead of a cyanide tube in order to obtain alive mosquitoes in good shape. The collection was undertaken 32 times during nights twice a week except on rainy nights. The mosquitoes collected totaled 22, 682 (Kurashiki) and 8, 620 (Okayama) Culex pipiens were found early May being reached the peak population at around the 10th of July coinciding with the time of plentiful rainfall, and decreased gradually with the onset of the hot season. Culex tritaeniorhynchus appeared in the middle of June and the peak population lasted for about a month starting in the middle of July followed by a sudden decrease in number. Anopheles sinensis were not abundant being found from the middle of June through the middle of August, and the peak population was observed between the beginning of July and the middle of August. Eight cases (Kurashiki) and nine cases (Okayama) of Japanese B encephalitis were reported during this summer between the middle of August and the middle of September.
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  • Comparative effect of several organophosphorus insecticides to German cockroach
    Takeshi Suzuki, Hideko Matsunaga, Mitsuko Shirai
    Article type: Article
    1962 Volume 13 Issue 2 Pages 116-122
    Published: May 31, 1962
    Released on J-STAGE: September 05, 2016
    DOIhttps://doi.org/10.7601/mez.13.116
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    Comparative effect of ten organophosphorus insecticides, i. e. diazinon, malathion, DDVP, ronnel, Dibrom, Baytex, Acethion, Butonate and Sumithion to a colony of German cockroach, Blattella germanica L., was studied in laboratory conditions. Some chlorinated hydrocarbon insecticides were also tested for comparison. After topical application test, DDVP was most effective; Sumithion was the next; and the descending order in the effectiveness was as follows : Dibrom, dieldrin, lindane, Baytex, diazinon, malathion, chlordane, Diepterex, ronnel, Butonate, DDT, Acethion. In rapidity of knockdown assessed by film contact test, DDVP was most excellent; Dibrom was the next; and the descending order in rapidity was as follows : lindane, diazinon, malathion, Sumithion, Baytex, Dipterex, ronnel, dieldrin, chlordane, DDT. The residual effect estimated from the mortality 6 days after the contact for limitted time to the residues kept in room conditions was excellent in Sumithion and Baytex, and inferior in Dibrom, ronnel and Dipterex. Summarizing the data obtained here and in the previous paper by Suzusuki, Shirai and Matsunaga (1961), for the use of residual application to cockroach, dieldrin was most excellent; Sumithion and Baytex were the next; lindane, chlordane and diazinon were the third; and the other chemicals were far inferior to the above chemicals.
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  • Insecticidal effect of Dimetilan to house flies (I)
    Susumu Yoshida, Masaki Omori, Satoru Miyazaki, Hitoshi Monma
    Article type: Article
    1962 Volume 13 Issue 2 Pages 123-126
    Published: May 31, 1962
    Released on J-STAGE: September 05, 2016
    DOIhttps://doi.org/10.7601/mez.13.123
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    The effects of Dimetilan on normal house flies and Diazinon-resistant house flies were compared with that of Diazinon by Topical Application and Bait Tests. The results obtained by the experiment were as follows : 1) Dimetilan was equally effective against both normal house flies and diazinon-resistant house flies by Topical Application. 2) The cross-resistance of diazinon-resistant house flies was not recognized both in the bait tests of Dimetilan and in the topical application. Dimetilan bait was found effective at such low content of 0.00625%. 3) Sugar bait containing 0.025% Dimetilan was effective for more than one month. 4) Lactose was the most effective material as the basic substance of Dimetilan bait. 5) In the room test of Dimetilan bait, fly population considerably reduced after 24 hours and on the third day it further decreased to one-fourth.
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  • A new device for increasing the residual effects of insecticide impregnant cord
    Shunnosuke Hirakoso
    Article type: Article
    1962 Volume 13 Issue 2 Pages 127-130
    Published: May 31, 1962
    Released on J-STAGE: September 05, 2016
    DOIhttps://doi.org/10.7601/mez.13.127
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    A device was made to increase the residual effect of insecticide impregnant cord by attaching a glass tube filled with insecticide solutions. In one of author's experiments, glass tubes of 5cm. in length and 0.4cm. in diameter filled with 0.2ml of 15 percent diazinon and 15 percent DDVP solution in rice oil were attached to each linnen cord of 70cm. in length and 2mm. in diameter. The tubes were suspended from the ceiling at the rate of one per 0.93 square meters. These gave excellent control effects at least for two months after they were installed. In the laboratory experiments, the cords attached to the tubes filled with 5 percent diazinon and 5 percent DDVP solution gave higher knockdown and longer residual effects than those simply impregnated with the same insecticides.
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  • Effect of several insecticides to sarcophgeal pupae in the soil
    Tetsuya Ohtaki, Chiyokichi Kishi, Toshio Yonebayashi
    Article type: Article
    1962 Volume 13 Issue 2 Pages 130-132
    Published: May 31, 1962
    Released on J-STAGE: September 05, 2016
    DOIhttps://doi.org/10.7601/mez.13.130
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    The effect of various insecticides, i. e. lindane, diazinon, DDVP, o-dichlorobenzene and ethylene-dibromide, to sarcophageal pupae in the soil was tested. In the field tests, spray of diluted solution of lindane emulsion was more or less effective, although the others were no effect. However, in laboratory experiments, the pupae, being 2cm deep in the soil, were perfectly killed by 100- or 200-fold dilution of 15% ethylene-dibromide emulsion.
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  • Ecological studies on mosquitoes in the bamboo groves of Tochigi Prefecture (Supplementary note)
    Yoshio Kurashige
    Article type: Article
    1962 Volume 13 Issue 2 Pages 133-
    Published: May 31, 1962
    Released on J-STAGE: September 05, 2016
    DOIhttps://doi.org/10.7601/mez.13.133
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  • Catalogue of scientific names and common names of the insect pests of sanitary importance in Japan
    Kazuki Ogata
    Article type: Article
    1962 Volume 13 Issue 2 Pages 134-152
    Published: May 31, 1962
    Released on J-STAGE: September 05, 2016
    DOIhttps://doi.org/10.7601/mez.13.134
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