Skip to main content
. 2011 Sep 5;4:10.3402/ehtj.v4i0.7157. doi: 10.3402/ehtj.v4i0.7157

Table. 5.

Sources and indicators referenced in open source planthopper-virus case study in China, 2007*

Citation Date Source Language Indicator Stage Indicator code
NA June 5, 2007 to July 25, 2007 Multiple Multiple Planthopper damage spreads across China as reported in 13 articles (species unspecified). PS2 D
2007p June 6, 2007 China View English Planthoppers infest 1.2 million ha rice in south China, 40% increase from last year. Ministry of Agriculture says planthoppers (species unspecified) flew from abroad 2 weeks earlier than last year. PS2 D1
2007q July 25, 2007 Anhui News English In Anhui, flooding, pests cause USD $800 million damage; RRSV, RGSV, rice leaf rollers, and planthoppers (species unspecified) affect 2.8 M ha; rice production could drop by 30%–40%. PS3 D
2007r July 29, 2007 China Agricultural Product Network Chinese Authorities in Sichuan Province activate Level II Emergency Alert. PS3 2
2007r August 7, 2007 China Agricultural Product Network Chinese Planthoppers (species unspecified) spread to 19 cities and 94 counties threatening 390,000 ha of cropland in Sichuan. The province declares a Level II alert; activates emergency agricultural disaster plans on July 29th including 24-hour headquarter operations, expert analysis, press releases, 1,300 light traps, and USD $1.3 million in funding for BPH control. PS3 D2
N/A August 8, 2007 to December 31, 2007 Multiple Multiple Over 115 articles report outbreak levels; local and provincial authorities promote measures to prevent outbreaks, including the use of ducks. PS3 D2
2007s September 15, 2007 China Agricultural Product Network Chinese Hubei spends USD $2.6M on planthopper control; density of planthoppers (mixed species) higher than previous year, yet damage lower than 2006 due to aggressive control. PS2 2D
2007t 28-September-07 Hubei TV Chinese Planthopper densities (species unspecified) in Changsha, Hunan 60% higher than 2006. PS2 D
2007u November 7, 2007 Farmer Daily Newspaper Chinese Researchers promote pesticide alternatives such as fish, ducks, and light traps to control planthoppers (any species). PSR 2
*

Note that this table contains greater detail regarding sources and indicators than is described in the text of the case study.