ANNUAL REPORT OF THE SOCIETY OF PLANT PROTECTION OF NORTH JAPAN

Online ISSN : 2185-4114
Print ISSN : 0368-623X
ISSN-L : 0368-623X

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Issue 54 Pages 1-

Volume 2003, Issue 54

Displaying 51-59 of 59 articles from this issue

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Control of European Red Mite, Panonychus ulmi, by Petroleum Oil Emulsifiable Concentrate Application 10 Days after the Green-Tip Stage in Apples

Yoichi ISHIGURI

2003Volume 2003Issue 54 Pages 170-173
Published: November 30, 2003
Released on J-STAGE: August 11, 2011

DOIhttps://doi.org/10.11455/kitanihon1966.2003.170

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Indirect Effects of Exotic Predatory Mite, Typhlodromus occidentalis (Acari: Phytoseiidae), on Native Predatory Mites in Apple Orchards in Akita Prefecture

Masatoshi MOCHIZUKI, Ken FUNAYAMA, Kimiko HONGO, Atsushi MOCHIZUKI

2003Volume 2003Issue 54 Pages 174-176
Published: November 30, 2003
Released on J-STAGE: August 11, 2011

DOIhttps://doi.org/10.11455/kitanihon1966.2003.174

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There has been much discussion of a risk through effects of exotic natural enemy populations on local communities and nontarget species. The exotic predatory mite, Typhlodromus occidentalis, from New Zealand was released into several apple orchards in Akita prefecture from 1988 to 1999 to control spider mites. In the summer of 2002, we surveyed whether their establishment and replacement over native species occurred in the areas where it was released. No T. occidentalis was found in apple and cherry trees in the area where it was released, and three species of native predatory mite, T. vulgaris, Amlyseius womersleyi, and A. finlandicus highly dominated. This result suggests that the introduction of T. occidentalis has insignificant ecological effects on native predatory mites.

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Damage Caused by Fruit-Piercing Stink Bugs in European Pear in Aomori

Tomoko MURAI, Hiroyuki OGASAWARA

2003Volume 2003Issue 54 Pages 177-181
Published: November 30, 2003
Released on J-STAGE: August 11, 2011

DOIhttps://doi.org/10.11455/kitanihon1966.2003.177

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Damage to Persimmons by Larvae of Stink Bugs, Lygocoris spp.

Tomohiro SATO, Shinichi GOTO, Yumi KITAZAWA

2003Volume 2003Issue 54 Pages 182-184
Published: November 30, 2003
Released on J-STAGE: August 11, 2011

DOIhttps://doi.org/10.11455/kitanihon1966.2003.182

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Occurrence of Damaged Fruits Caused by Cupreous Chafer, Anomala cuprea HOPE and Control Methods in Peach Orchards

Akihiro ARAKAWA, Kazuhiro OKAZAKI

2003Volume 2003Issue 54 Pages 185-188
Published: November 30, 2003
Released on J-STAGE: August 11, 2011

DOIhttps://doi.org/10.11455/kitanihon1966.2003.185

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Damage of Gentian Seedling by Fungus Gnat Larvae (Sciaridae, Diptera) and Provision against Them

Junko GOTO, Takumi FUJISAWA

2003Volume 2003Issue 54 Pages 189-192
Published: November 30, 2003
Released on J-STAGE: August 11, 2011

DOIhttps://doi.org/10.11455/kitanihon1966.2003.189

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Effects of Planting of Trifolium spp. and Application of Dried Cattle Feces on Population Density of Soybean Cyst Nematode, Heterodera glycines

Takashi NARABU

2003Volume 2003Issue 54 Pages 193-196
Published: November 30, 2003
Released on J-STAGE: August 11, 2011

DOIhttps://doi.org/10.11455/kitanihon1966.2003.193

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The potentials of planting of Trifolium spp. and applying dried cattle feces in suppressing the population of Heterodera glycines were evaluated in a two-field-microplot experiment. Planting of T. pretense or T.incarnatum for four months reduced the H. glycines egg population density by 65-75% against the preplanting treatment and by 50% against the nonhost-crop planting treatment. The highest suppressive effect was obtained when T. pretense was sown early in May. The application of dried cattle feces 300kg/10 a in soil did not cause significant suppression of the population of H. glycines. Planting of Trifolium spp. once a year was not sufficient in reducing the final H. glycines egg population to the economic threshold level when the initial population was high.

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Effects of Transplanting Potato Seedlings Grown in Paper Pots to Fields Infested with Potato Cyst Nematode, Globodera rostochiensis, on Potato Yield

Atsuhiko KUSHIDA, Taketo UEHARA, Youji MOMOTA

2003Volume 2003Issue 54 Pages 197-200
Published: November 30, 2003
Released on J-STAGE: August 11, 2011

DOIhttps://doi.org/10.11455/kitanihon1966.2003.197

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[title in Japanese]

2003Volume 2003Issue 54 Pages 201-216
Published: November 30, 2003
Released on J-STAGE: August 11, 2011

DOIhttps://doi.org/10.11455/kitanihon1966.2003.201

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