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Volume 20 (1969)
- Issue 4 Pages 219-
- Issue 3 Pages 147-
- Issue 2 Pages 51-
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Volume 20, Issue 4
Displaying 1-9 of 9 articles from this issue
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Article type: Cover
1970 Volume 20 Issue 4 Pages Cover8-
Published: January 31, 1970
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSDownload PDF (29K) -
Yuri Matsudaira, Kiyotoshi KanekoArticle type: Article
1970 Volume 20 Issue 4 Pages 219-229
Published: January 31, 1970
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSNine species of biting lice have been reported from domestic fowls in Japan (Table 2). But many investigators have used different genera and specific names; scientific names of them have been in a strongly confused state. Since 1963 H.I.H. Prince Hitachi has collected many specimens of biting lice from domestic fowls in Chiba Prefecture. These were examined in detail and eight species belonging to six genera were identified (Table 1); all the species have already been reported by Japanese investigators. In the present paper redescriptions and drawings of these lice were presented.View full abstractDownload PDF (1027K) -
Akira Shimizu, Hiroshi Yamaguchi, Shigehumi ShinoharaArticle type: Article
1970 Volume 20 Issue 4 Pages 229-236
Published: January 31, 1970
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSDescriptions of five species of the horse-fly pupae (Tabanidae) were given. These pupae were collected from humus soil under defoliating trees, swampy places or banks of the streamlets of Karuizawa and Sugadaira, Nagano Prefecture. Stenomyia yezoensis (Shiraki), Hybomitra jersey (Takahasi) and Tabanus fulvimedioides Shiraki were hitherto undescribed. A detailed description on the pupa of T. chrysurus Loew has never been published although a brief note was made by Ohmori & Saito (1964). The structure of the pupa of T. sapporoensis Shiraki, which was described by Ogawa (1959), is significantly different from that of ours, viz., in the former the body surface is sculpture with transverse striation while in the latter with net work.View full abstractDownload PDF (929K) -
Yoshio KurashigeArticle type: Article
1970 Volume 20 Issue 4 Pages 236-239
Published: January 31, 1970
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSThe hourly collections of mosquitoes by a light trap were made at a paddy field area in Utsunomiya City during the period from June 27 to August 23, 1967. 1) A total of 18, 287 adults of the following six species were collected; Culex tritaeniorhynchus (70.9%), Anopheles sinensis (24.1%), Aedes vexans (4.7%), Culex pipiens pallens (0.1%), Anopheles sineroides (0.1%), and Culex bitaeniorhynchus. 2) The considerably different patterns of nocturnal activity were observed in the important mosquito species at different nights. After sunset and before sunrise, in general, a small number of the mosquitoes were collected.View full abstractDownload PDF (446K) -
Hideakira Tsuji, Shigeki OnoArticle type: Article
1970 Volume 20 Issue 4 Pages 240-247
Published: January 31, 1970
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSLaboratory experiments were conducted to determine the efficacy of an established attractant (methylmyristate) and feeding stimulants (starch, maltose, and sucrose), and the iesecticidal activity of boric acid as the constituents of baits for cockroach control. Starch (25 to 70%) and soluble starch (10 to 25%) were used as the basic constituents of the baits. The experiments were done at a constant temperature of 25±1℃. The results with the German conckroach were as follows. 1) When administered orally, boric acid showed no chemical repellency against the insects. 2) A single-day exposure of the insects to baits containing boric acid was enough to kill most of them, though the fed amount of boric acid was slowly effective. In a continuous exposure of the insects to the baits, 6.6mg of boric acid taken by 30 female adults could kill them all within a month, and the more the intake of boric acid was the shorter the duration necessary for killing the insects. Thus it is likely that all or at least most of the insects respond to their food every night. 3) When the water solutions were delivered from the needle of a syringe directly on to the mouthparts of young adults, (LD)_<50> values of about 150μg of boric acid per male insect and 200μg per female were expected. In this case mortality did not increase from the 11th day after the application. 4) The addition of methylmyristate to the bait clearly increased the amount of bait ingested by the insects at the optimum dose from 0.02 to 0.2%. The insects preferred the maltose-containing bait much more than the sucrose-contatining one especially at the higher concentrations of 10 and 15%. 5) Mortality by the bait with 0.5% lindane or fenitrothion in addition to 20% boric acid initially increased at a much more rapid rate than those without these insecticides, but especially with fenitrothion complete mortality resulted Afferward. 6) A wide distribution of the bait was more effectual for rapid control of the insect populations even in small test containers, and the baits were effective for controlling the insects even when there was a greater amount of another food which the insects could feed freely.View full abstractDownload PDF (714K) -
Tatsuo Yabe, Kiyoki Moriya, Fumio HaradaArticle type: Article
1970 Volume 20 Issue 4 Pages 248-252
Published: January 31, 1970
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSThe seasonal prevalence of moth flies breeding in a rural area of Yokohama was surveyed during the period from June to October in 1967 and all the year in 1968. Collection of the adult moth flies was made by black-light traps (Nozawa type) in two pigpens and a henhouse. Among the four species collected, T. albipunctatus and P. alternata were most common in this area. T. albipunctatus was collected successively during the period from May to December and it was most abundant in August in 1968 and September in 1967. Also P. alternata was common throughout the year of 1968 and three peaks in prevalence were seen in three seasons, May, June to July, and September to October; the highest among them was observed during the period from June to July.View full abstractDownload PDF (482K) -
Kiyoki Moriya, Tatsuo Yabe, Fumio HaradaArticle type: Article
1970 Volume 20 Issue 4 Pages 253-259
Published: January 31, 1970
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSAs a case of insect nuisances of summer season two kinds of the moth flies, Psychoda alternata Say and Telmatoscopus albipunctatus Williston, which are common in various districts of Kanagawa Prefecture, was in vestigated. The life history of Telmatoscopus albipunctatus was observed in the laboratory by dry yeast feeding under the conditions of 27℃, 85% relative humidity and L12 : D12 in photoperiodism. The egg period was 2 days, larval stages ranged 10-14 days (I, II, III and IV instar periods), pupal period was 3 days and adult life lasted from 2 days to 20 days (average 7 days). Preoviposition period was 3 days, and the total number of eggs per one female was considered to be 250. Relative effectiveness of 9 insecticides was tested against larvae of Telmatoscopus albipunctatus by the dilution immersion method with suspending filter papers. The LC 50 values were 0.26ppm for Baytex, 0.81ppm for Sumithion, 1.9ppm for Dipterex, 4.3ppm for Malathion, 5.2ppm for Lindane, 8.5ppm for DDVP, 9.1ppm for DDT and 71ppm for Sevin. It was obvious that the moth fly (Telmatoscopus albipunctatus) larvae have, in general, resistance levels to the insecticides tested. It is, therefore suggested that chemical control measure of the adult moth flies, in in practice desirable.View full abstractDownload PDF (762K) -
Katasumi Saito, Toshihiko Iijima, Masataka HayashiArticle type: Article
1970 Volume 20 Issue 4 Pages 260-261
Published: January 31, 1970
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESS -
Akifumi HayashiArticle type: Article
1970 Volume 20 Issue 4 Pages 261-263
Published: January 31, 1970
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSThe joint toxicities of pyrethroids were tested against the Takatsuki strain of the housefly (Musca domestica vicina). The co-toxicity coefficients of mixtures were calculated by using the Sun-method (1950). The co-toxicity coefficient of an insecticide-mixture [numerical formula] When the coefficient of a mixture indicates about 100, it showns similar joint action. If the coefficient is less than 100, it seems to be independent action. In the case of a significant value above 100, it indicates synergism. While it is significantly less than 100, it shows antagonism. The mixtures of chrythron plus allethrin and chrythron plus phthalthrin showed high synergistic action. Chrythron was more effective than allethrin and phthalthrin.View full abstractDownload PDF (381K)
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