Results 101 to 110 of about 5,124 (219)
POPULATIONS OF PLANTHOPPERS IN RICE FIELDS OF UDAYA VARIETY IN PURI DISTRICT OF ORISSA
, 1988 In fields of rice variety Udaya in six blocks of Puri district (Orissa) nymph and adult populations of brown planthopper, Nilaparvata lugens and white backed planthopper, Sogatella furcifera were studied to observe stability of resistance to the variety ...
PRAKASH, A., GUPTA, S. P., CHOUDHURY, A.
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Evolutionary ApplicationsUnderstanding the evolutionary history of biological control agents in their native ranges is crucial for improving their selection, establishment, and performance across environmentally diverse regions.
Nicolas A. Salinas +5 more
doaj +1 more source
Population dynamics and forecasting of rice 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，利用時間序列分析方法，來分析長期監測資料，並結合相關重要因子當作解釋變數，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 ...
黃守宏, 蔣國司
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Integrating gene deployment and crop management for improved rice resistance to Asian planthoppers
, 2018 © 2018 Elsevier Ltd This review examines the effects of crop management on the efficiency and durability of planthopper resistant rice in Asia. Historical evidence and selection experiments indicate that the proportion of virulent individuals in ...
Horgan, FG, Finbarr G. Horgan
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Brown Planthopper Biotypes in India
, 1984 This article 'Brown Planthopper Biotypes in India' appeared in the International Rice Research Newsletter series, created by the International Rice Research Institute (IRRI). The primary objective of this publication was to expedite communication among scientists concerned with the development of improved technology for rice and for rice based cropping
Velusamy, R. +3 more
openaire +1 more source
Varietal Resistance to Whitebacked Planthopper
, 1983 This article 'Varietal Resistance to Whitebacked Planthopper' appeared in the International Rice Research Newsletter series, created by the International Rice Research Institute (IRRI). The primary objective of this publication was to expedite communication among scientists concerned with the development of improved technology for rice and for rice ...
Lal, M. N. +4 more
openaire +2 more sources
Insecticidal effect of aconitine on the rice brown planthoppers
, 2019 The brown planthopper, Nilaparvata lugens (Stål), severely damages rice production and develops high level resistance to several classes of insecticides. To find potential insecticidal resources is always important.
Shuqin Wei +9 more
core +1 more source
, 1987 This article 'Rice Varieties Resistant to Brown Planthopper (BPH), Whitebacked Planthopper (WBPH), and Leaffolder (LF)' appeared in the International Rice Research Newsletter series, created by the International Rice Research Institute (IRRI). The primary objective of this publication was to expedite communication among scientists concerned with the ...
Rajendran, R., Gopalan, M., Velusamy, R.
openaire +2 more sources
, 1979 This article 'Flight Activities of Brown Planthopper, Whitebacked Planthopper, and Their Predator C. lividipennis in Malaysia' appeared in the International Rice Research Newsletter series, created by the International Rice Research Institute (IRRI). The primary objective of this publication was to expedite communication among scientists concerned with
openaire +2 more sources