Results 111 to 120 of about 2,299 (209)

Resistance of IR Varieties to Leafhoppers and Planthoppers

, 1987
This article 'Resistance of IR Varieties to Leafhoppers and Planthoppers' appeared in the International Rice Research Newsletter series, created by the International Rice Research Institute (IRRI).
Rajendran, R., Velusamy, R., Khush, G. S., Sundara Babu, P. C.   +3 more
core   +1 more source

A long-distance migration analysis of rice planthoppers using computer simulations

, 2006
Since long-distance migration of rice planthoppers immigrating into Japan in the Bai-u rainy season had been analyzed by using 2-dimensional methods, there were limitations of precision in both estimating migration sources and predicting migrations.
OTSUKA, Akira, 大塚, 彰, オオツカ, アキラ   +2 more
core   +1 more source

Ovicidal Activity of Insecticides against Planthoppers on Rice

, 1981
Insecticides were evaluated to determine their ovicidal activity against rice-feeding planthoppers, Nilaparvata lugens (Stål) and Sogatella furcifera Horvath.
Heinrichs, E. A., Valencia, S. L.
core  

Estimating the immigration source of rice planthoppers, Nilaparvata lugens (Stål) and Sogatella furcifera (Horváth) (Homoptera: Delphacidae), in Taiwan

, 2012
Since overwintering populations of brown planthopper (Nilaparvata lugens) and white-backed planthopper (Sogatella furcifera) in Taiwan are very low based on field observations, immigrant planthoppers have become the most important source of serious ...
Chiou-Nan Chen, Akira Otuka, Ching-Huan Cheng, Shou-Horng Huang, Wen-Jer Wu   +4 more
core   +1 more source

Rice virus disease in Indonesia: epidemiology and varietal resistance

Phytopathology Research
The geographical location of Indonesia in the tropical region, characterized by high temperatures and humidity, is favorable for the development of viral diseases in rice.
I Nyoman Widiarta, Firmansyah Firmansyah, Muhamad Yunus, Aniversari Apriana, Atmitri Sisharmini, Tri Joko Santoso, Rerenstradika Tizar Terryana, Rahmini Rahmini, Indrastuti Apri Rumanti, Trias Sitaresmi, Swisci Margaret, Chaerani Chaerani, Ani Widarti, Yudhistira Nugraha, Aris Hairmansis   +14 more
doaj   +1 more source

Uptake kinetics and distribution of flupyrimin by rice (Oryza sativa L.): Effects of subcellular fractionation and soil factors

Ecotoxicology and Environmental Safety
Flupyrimin is an emerging neonicotinoid insecticide primarily used to control rice planthoppers. However, knowledge gaps exist regarding its uptake and transport in rice planting systems.
Xugen Shi, Min Wang, Zhenyu Jiang, Ruqiang Cui, Baotong Li, Xianpeng Zhang, Lianhu Zhang, Duantao Cao   +7 more
doaj   +1 more source

A method for rapid assessment of rice resistance to rice ragged stunt virus

Plant Stress
Background: Rice ragged stunt virus (RRSV) is one of the most damaging viral threats to rice production in Asia and other major rice-growing regions.
Jingjing Li, Meng Jiang, Wenzhuo Zeng, Xiaoyan Zhang, Qingyao Shu, Long Wang   +5 more
doaj   +1 more source

Comparison of upper sublethal and lethal temperatures in three species of rice planthoppers. [PDF]

Sci Rep, 2019
Ali S, Li P, Ali A, Hou M.
europepmc   +1 more source

Population Fluctuations and Forecasting Population Densities of Brown planthoppers

, 2014
褐飛蝨為台灣最重要水稻害蟲之一，如防治不當則導致水稻品質及產量降低，造成莫大的損失。台灣每年亦會遭受海外蟲源之遷入，每年遷入時間及族群大小不一，且蟲害可長距離遷移，遷入台灣之害蟲來源區域甚廣，再加上大環境氣候異常，害蟲族群之變化更劇烈，有待長期監測，以掌握族群之變動。因此配合長期田間害蟲族群發生動態，建立蟲數與氣象因子之模式，來發展提早偵測害蟲之大發生，為早期預警、適時施藥防治、達到水稻安全生產目的之重要目標。Brown planthoppers are important pest insects ...
黃守宏, 蔣國司, 黃愉閔
core  

Socioeconomics of rice-aquaculture and IPM in the Philippines: synergies, potential and problems [PDF]

Rice farming covers nearly one-third of the arable land of Asia. The study shows results that are useful for policymakers wishing to promote new diversification opportunities in the crop sector. It describes some of the complexities in understand farming
Horstkotte-Wesseler, G.
core