Effect of different densities of Empoasca vitis on the yield loss rate and the damage indexes of fresh tea leaves were evaluated with the net method. Based on the results, the linear correlation equation was obtained for analysis on pest densities and economic loss rate of fresh tea leaves. The economic threshold of the pest for oolong tea and green tea at different areas, tea seasons and fresh tea prices was put forward
XU Jin-han
,
WANG Nian-wu
,
ZHANG Ling-ling
,
GUAN Xiong
. Study on the Economic Threshold of Tea Leafhopper (Empoasca vitis Gothe)[J]. Journal of Tea Science, 2005
, 25(2)
: 131
-135
.
DOI: 10.13305/j.cnki.jts.2005.02.009
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