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| Pheophanh Soysouvanh; Nutcharee Siri. |
| Four cassava varieties, Kasetsart 50, Huay Bong 60, Rayong 9 and Rayong 72 were observed for mealybug in a survey that was conducted in Kalasin Province, Khon Kaen province and Udon Thani Province from November 2011 to September 2012. The infestation of pink mealybug was counted in five levels, 0 level 0 mealybug, 1st level (1-9), 2nd level (10-99), 3rd level (100-999) and 4th level (≥1,000). On the other hand, leaf curl level was categorized into five scores as follows; margin declined slightly was categorized at normal was categorized at level 0, margin declined slightly at level 1, shoot stunted at level 2, shoot distorted at level 3 and leaves fall at level 4. Rayong 72 variety showed the highest population of mealybug at 25.5% (MbL1) and 22.5 % (MbL2)... |
| Tipo: PhysicalObject |
Palavras-chave: Cassava; Manihot esculenta; Kasetsart 50 variety; Huay Bong 60 variety; Rayong 9 variety; Rayong 72 variety; Natural enemies; Pink mealybug; Phenacoccus manihoti; Cassava mealybug; Pest survey; Population abundance survey; Northeast; มันสำปะหลัง; พันธุ์เกษตรศาสตร์ 50; พันธุ์ห้วยบง 60; พันธุ์ระยอง 9; พันธุ์ระยอง 72; ศัตรูพืช; เพลี้ยแป้ง; การสำรวจศัตรูพืช; ภาคตะวันออกเฉียงเหนือ. |
| Ano: 2013 |
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5816 |
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| Chanasirin Klinmanee; Orak Tongdej; Wattana Posiri. |
| Integrated pest management trials were conducted in order to test pest management practices in Phatthalung, Nakhon Si Thammarat and Songkhla provinces during 2011-2013 wet seasons. The data on population of insect pests, natural enemies, percent damage of diseases, percent damage of animal pests, weed species with wet weight, grain yield per rai, input costs, price of paddy and net benefit were collected comparing to the farmers’ practice trials. The results showed that the integrated pest management trials having more natural enemies than the farmers’ practice trials. The major pests were rice thrips, green leafhoppers, rice leaf-folder, zigzag planthopper, whitebacked planthopper, rice bug. Rice diseases found were blast and brown spot. The animal... |
| Tipo: PhysicalObject |
Palavras-chave: Integrated pest management; Major pests; Input cost; Net benefit; Rice; Rice production; Knowledge transfer; Rice irrigation; Southern; การจัดการศัตรูพืชแบบผสมผสาน; ศัตรูพืช; ต้นทุนการผลิต; ผลตอบแทนสุทธิ; ข้าว; ชลประทาน; การผลิตข้าว; ระดับเศรษฐกิจ; การถ่ายทอดองค์ความรู้; การลดต้นทุน; ภาคใต้. |
| Ano: 2014 |
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5669 |
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| Duangsamorn Suthisut; Fields, Paul G.; Angsumarn Chandrapatya. |
| Efficacy of essential oils from rhizomes of Alpinia conchigera, Zingiber zerumbet and Curcumazedoaria to repel Sitophilus zeamais and Tribolium castaneum at 0.003, 0.03, 0.15, 0.31, 0.63 and 1.27 μL/cm2 by Petri-dish choice bioassay indicated that the most efficiency was found in C. zedoaria oils (91.5%) followed by Z. zerumbet oils (89.4%) and A. conchigera oils (78.1%). For T. castaneum, A. conchigera oil (97.4%) was the most effective one, followed by C. zedoaria oil (95.3%) and Z. zerumbet oil (93.0%), respectively. Furthermore, the residual of three essential oils were also estimated at 1.27 μL/cm2 and the results demonstrated that Alpinia conchigera and Z. zerumbet oils strongly repelled both insects till the end of experiment (8 days) while C.... |
| Tipo: Collection |
Palavras-chave: Sitophilus zeamais; Tribolium castaneum; Alpinia conchigera; Zingiber zerumbet; Curcuma zedoaria; Pest; ข่าลิง; กระทือควาย; ว่านขมิ้น; น้ำมันหอมระเหย; ศัตรูพืช; ด้วงงวงข้าวโพด; มอดแป้ง; ฤทธิ์ตกค้าง; ประสิทธิภาพ; การขับไล่แมลง. |
| Ano: 2011 |
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5215 |
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