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| Apichat Seiyot; Jintana Asurin; Wantana Sriratanasak. |
| Insect survey using light traps and the field survey for collecting insect pests and natural enemies were conducted at Surin Rice Research Center during February 2014 to January 2015. The main objective of this study was to investigate the correlations between environmental factors and numbers of insect pests and natural enemies. The results revealed that rainfall, temperature and relative humidity were slightly correlated with numbers of insect pests and natural enemies. Additionally, number of pests was negatively correlated with number of natural enemies. Negative correlations were observed between number of parasitic wasps and numbers of white backed planthoppers, brown planthoppers, green leafhoppers and zigzag leafhopper. Number of orange ladybugs... |
| Tipo: Collection |
Palavras-chave: Insect pests; Natural enemies; Light trap; แมลงศัตรูข้าว; แมลงศัตรูธรรมชาติ; กับดักแสงไฟ. |
| Ano: 2015 |
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5867 |
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| Wannisa Tananta; Premrudee Pintaya; Sathaporn Kanjanapan. |
| Chiang Mai Rice Research Center has carried out a project on the early warning system for major rice pests in Chiang Mai since 2011. The project consisted of 3 activities; 1) Rice blast forecasting 2) Light trap counting and 3) Field survey for rice pests. Blast risk was indicated by BUS (Blast Unit of Severity) obtaining from the values calculated from the weather data on courtesy of Chiang Mai Meteorological Station. Results revealed a risk for rice blast epidemics at seedling, tillering, booting and flowering stages. These coincided with rice blast epidemics at some surveyed fields and farmer’s field epidemics recorded in 3 areas i.e. M.4 Sunttisuk, Doi Lo district, M.4 Sankhang, Sanpatong district and M.6 Sansai, Phrao district. Furthermore, insect... |
| Tipo: Collection |
Palavras-chave: Rice blast; Rice pest; Light traps; Chiang mai; ข้าว; โรคไหม้; กับดักแสงไฟ; แมลงศัตรูข้าว; จ.เชียงใหม่. |
| Ano: 2012 |
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5594 |
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| Kornsiri Srinil; Nootjarin Jungkhun; Tarapron Yuenyong; Kuntera Kanta; Antika Tonmit; Netnapa Pumhan. |
| Study about the accordance of rice insect pests from the light trap and the research data of insects in the rice seed of San-pah-tawng 1 (weak) and that of SuphanBuri 1 (resistant) was conducted from the year 2011 to 2013 at the Chiang Rai Rice Research Center. It’s found that the rice insect pests entrapped by the light trap being increased from the year 2007 to 2010. That in May, 2011, 4,779 zigzag leafhoppers were mostly found; in March, 2012, 19,248 whitebacked planthoppers were mostly found and; in May, 2013, 19,047 zigzag leafhoppers were mostly found. In the paddy field, rice insect pests were found in the rice seed of San-pah-tawng 1 more than that of Suphan Buri 1. In the In-season rice of the year 2011, the White backed planthoppers were mostly... |
| Tipo: PhysicalObject |
Palavras-chave: Whitebacked planthoppers; Brown planthoppers; Light trap; Climatic change; Rice; Sanpatong 1 variety; Suphanburi variety; Weak variety; Resistant variety; Insect pest; Natural enemies; Survey; Damage; Population dynamics; Chiangrai province; เพลี้ยกระโดดหลังขาว; เพลี้ยกระโดดสีน้ำตาล; ข้าว; พันธุ์สันป่าตอง 1; พันธุ์สุพรรณบุรี 1; พันธุ์อ่อนแอ; พันธุ์ต้านทาน; การสำรวจแมลงศัตรูพืช; กับดักแสงไฟ; การเปลี่ยนแปลงสภาพภูมิอากาศ; ภาวะโลกร้อน; การทำลายของแมลงศัตรูพืช; การประเมินความเสียหาย; การทำลายของแมลงศัตรูพืช; จ.เชียงราย. |
| Ano: 2014 |
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5696 |
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