Population dynamics of sugarcane thrips (Fulmekiola serrata) and thedegree of damage inflicted by these on different sugarcane arieties
Author of the article:YIN Jiong** LUO Zhi-Ming HUANG Ying-Kun*** LI Wen-FengZHANG Rong-Yue WANG Xiao-Yan SHAN Hong-Li
Author's Workplace：Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences, Kaiyuan 661699, China
Key Words：sugarcane thrips, Fulmekiola serrata Kobus, sugarcane varieties, population dynamics, resistance
Abstract： [Objectives] To quantify
the population dynamics of sugarcane thrips Fulmekiola serrata Kobus and the damage inflicted by these pests on different sugarcane varieties, with
the objective of building base-line data for studying the feeding preferences
of F. serrata and developing
effective measures to control this pest. [Methods] The population dynamics of F. serrata were investigated in
sugarcane fields from the beginning of April to the end of July in 2013, and
the degree of damage inflicted on 12 sugarcane varieties was compared. [Results] F.
serrata populations increased gradually at first, then declined, with peak
abundance observed between mid-June and early July. A total of 12 sugarcane
varieties were fed on by F. serrata. In the case of plant cane, the highest number of thrips was recorded on Yunrui 06-189,
with an average of 25.80 thrips/plant, and the least on Mintang 01-77, which
had an average of 7.80 thrips/plant. In ratoon cane, the highest number of
thrips was recorded on ROC22, which had an average of 106.93 thrips/plant, and least
on Yunzhe 06-80, which had an average of 33.60 thrips/plant. Nymphs and adult
numbers of F. serrata on different
sugarcane varieties differed in the
same field. The numbers of F. serrata on the same sugarcane variety were higher on ratoon than on plant cane; in the
range of 10.10-90.90 thrips/plant. [Conclusion] The incidence of F. serrata was influenced by sugarcane
varieties and planting dates. The degree of damage inflicted
by F. serrata on sugarcane, and the resistance
of sugarcane to F. serrata, differed
among different sugarcane varieties.