| Project/Area Number |
07045039
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| Research Category |
Grant-in-Aid for international Scientific Research
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| Allocation Type | Single-year Grants |
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| Section | University-to-University Cooperative Research |
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| Research Field |
植物保護
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| Research Institution | YAMAGUCHI UNIVERSITY |
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Principal Investigator |
KAMEYA Mitsuro (1996-1997) YAMGUCHI UNIVERSITY,FACULTY OF AGRICULTURE,PROFESSOR, 農学部, 教授 (40233978)
矢野 宏二 (1995) 山口大学, 農学部, 教授 (90038208)
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| Co-Investigator(Kenkyū-buntansha) |
RATANABHUMMA Sanit CHIANG MAI UNIVERSITY,DEPARTMENT OF ENTOMOLOGY,ASSISTANT PROFESSOR, 農学部, 準教授
ITO Shin-ichi YAMGUCHI UNIVERSITY,FACULTY OF AGRICULTURE,ASSOCIATE PROFESSOR, 農学部, 助教授 (30243629)
TANAKA Shuhei YAMGUCHI UNIVERSITY,FACULTY OF AGRICULTURE,ASSOCIATE PROFESSOR, 農学部, 助教授 (50116729)
HAMASAKI Shosaburo YAMGUCHI UNIVERSITY,FACULTY OF AGRICULTURE,LECTURER, 農学部, 講師 (10035107)
KAJITA Hiroshi YAMGUCHI UNIVERSITY,FACULTY OF AGRICULTURE,PROFESSOR, 農学部, 教授 (40038229)
SARDSUD Vich チェンマイ大学, 農学部, 準教授
CHAIFANG Jir チェンマイ大学, 農学部, 講師
BURANAPANICH サワイ チェンマイ大学, 農学部, 講師
SUKUMALANAND プラチャバル チェンマイ大学, 農学部, 講師
HENGSAWAD Vi チェンマイ大学, 農学部, 助教授
VICHA Sardsu チェンマイ大学, 農学部, 準教授
JIRAPORN Cha チェンマイ大学, 農学部, 講師
SAWAI Burana チェンマイ大学, 農学部, 講師
PRACHAVAL Su チェンマイ大学, 農学部, 講師
VICHIAN Heng チェンマイ大学, 農学部, 助教授
SANIT Ratana チェンマイ大学, 農学部, 準教授
亀谷 満朗 山口大学, 農学部, 教授 (40233978)
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| Project Period (FY) |
1995 – 1997
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| Project Status |
Completed (Fiscal Year 1997)
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| Budget Amount *help |
¥6,300,000 (Direct Cost: ¥6,300,000)
Fiscal Year 1997: ¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1996: ¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1995: ¥2,100,000 (Direct Cost: ¥2,100,000)
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| Keywords | Thailand / cruciferous crops / insect pests / diseases / IPM / natural enemies |
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| Research Abstract |
(1) Insect pests and diseases occurring on Cruciferous crops in North Thailand were surveyed and listed up. Insect pests : Diamondback moth (Plutella xylostella), common cutworm (Spodoptera litura) and cabbage white butterfly (Pieris canidia indica) are occurring in every locations and causing much damage. Stripe flea beetle (Phyllotreta striolata) is also occurring in many fields, however, populations was very different in fields. Green peach aphid (Myzus persicae), turnip aphid (Lipaphis erysimi) and cotton aphid (Aphis gossypii) were observed in many fields. Among them, green peach aphid and turnip aphid were seemed to be important for their high populations. Diseases : Fungus diseases of Alternaria leaf spot (Alternaria brassicicola) and downy mildew (Peronospora parasitica) and bacterial diseases of black rot (Xanthomonas campestris pv.campestris) and bacterial soft rot (Erwinia carotovora subsp.carotovora) were observed in every locations, however, damage by these diseases were s
… More
eemd to be not so severe. The mosaic diseases caused by turnip mosaic virus were occurring in Chinese cabbage, cabagge and cauliflower, and the occurrence of the virus was high in Chinese cabagge causing large yield loss. Cucumber mosavic virus was detected in one sample of cauliflower.
(2) Natural enemies were found from the following insect pests. In diamondback moth : Trichogrammatoidea sp.from its eggs ; Cotesia plutellae from its larvae ; Diadromus collaris from its pupae. In cabbage white butterfly : Cotesia glomerata from its larvae ; Brachymeria lasus and Brachymeria sp.from its pupae. In aphids : Cheilomenes sexmaculatus.
(3) Seasonal variations in emergence of diamondback moth and common cutworm were investigated using pheromon traps from December of 1995 to November of 1997 in the farmer's field growing bloccoli in Sarapee district of Chiang Mai City. The population of diamondbug moth was high in November to April in both years. The population of common cutworm was high in November to January, however, the occurrence of the insect was very different in each year. The populations of these insects were decreased suddenly after raining. The populations of these insects in cool areas with high elevation were also high in November to January, however, the population of these insects were smaller than that in low land fields. Less
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