Results 271 to 280 of about 582,137 (302)

Field evaluation of a six-rotor unmanned agricultural aerial sprayer: effects of application parameters on spray deposition and control efficacy against rice planthopper.

Pest Management Science, 2023
BACKGROUND Unmanned Aerial Spraying System (UASS) has emerged as an advanced, precise, and efficient tool for pesticide application in numerous nations in recent years.
Huang Zhan   +7 more
semanticscholar   +1 more source

Comigration and interactions between two species of rice planthopper (Laodelphax striatellus and Sogatella furcifera) and natural enemies in eastern Asia.

Pest Management Science, 2023
BACKGROUND Natural enemies are important in pest control. However, control by natural enemies is hindered by migration of rice planthoppers. Therefore, comigration and interactions between Laodelphax striatellus (Fallén) and Sogatella furcifera (Horváth)
Xingya Wang   +7 more
semanticscholar   +1 more source

The ROI of Rice Planthopper by image processing

2017 International Conference on Applied System Innovation (ICASI), 2017
Rice Planthopper (RPH) infestation in paddy field is a serious disaster in Asia every year. Finding RPHs based on image processing is an important thing before RPHs growth. We propose a region of interest (ROI) method to detect RPHs clearly. First, get rectangle ROI in HSV space and do color analysis. By using decision tree algorithm, classify analytic
Tsung-Han Tsai   +2 more
semanticscholar   +3 more sources

A novel transcriptional repressor complex MYB22-TOPLESS-HDAC1 promotes rice resistance to brown planthopper by repressing F3'H expression.

New Phytologist, 2023
The brown planthopper (BPH) is the most destructive pest of rice. The MYB transcription factors are vital for rice immunity, but most are activators. Although MYB22 positively regulates rice resistance to BPH and has an EAR motif associated with active ...
Bo Sun   +5 more
semanticscholar   +1 more source

Egg‐associated secretions from the brown planthopper (Nilaparvata lugens) activate rice immune responses

Insect Science, 2023
The brown planthopper (BPH, Nilaparvata lugens) is a notorious sap‐sucking insect pest that damages rice (Oryza sativa) plants throughout Asia. During BPH feeding, saliva enters rice plant tissues, whereas during oviposition egg‐associated secretions ...
Jing Li   +8 more
semanticscholar   +1 more source

Identification of the rice genes and metabolites involved in dual resistance against brown planthopper and rice blast fungus.

Plant, Cell and Environment, 2022
Brown planthopper (BPH) and blast disease jointly or individually cause big yield losses every year. To identify genes and metabolites with potential contributions to the dual resistance against both biotic-stress factors, we carried out a transcriptome ...
Su Chen   +4 more
semanticscholar   +1 more source

Genetics, Mechanisms and Deployment of Brown Planthopper Resistance Genes in Rice

Critical reviews in plant sciences, 2022
Among the rice insects, brown planthopper (BPH), (Nilaparvata lugens Stål) is a monophagous migratory phloem-sucking insect causing severe loss in Asiatic countries.
A. Mishra   +5 more
semanticscholar   +1 more source

Sequential sampling: planthoppers in rice

Crop Protection, 1986
Abstract A sequential sampling plan was developed for the brown planthopper, Nilaparvata lugens Stal, and the whitebacked planthopper, Sogatella furcifera Horvath in rice. The plan was tested in several different areas in the Philippines and compared with a more intensive sampling technique.
M. Shepard   +3 more
openaire   +2 more sources

Similarities and spatial variations of bacterial and fungal communities in field rice planthopper (Hemiptera: Delphacidae) populations

Insect Science, 2020
Rice planthoppers are notorious plant sap‐feeding pests which cause serious damage. While several microbes in rice planthoppers have been broadly characterized, the abundance and diversity of bacteria and fungi in field planthoppers are largely unknown ...
Xiaoli Bing   +4 more
semanticscholar   +1 more source

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