›› 2012, Vol. 55 ›› Issue (7): 832-840.doi:

• RESEARCH PAPERS • Previous Articles     Next Articles

Species of thrips on potted ficus and the degree of damage to different host plants by the dominant species Gynaikothrips uzeli (Thysanoptera: Thripidae)

YU De-Yi, HUANG Peng, YAO Jin-Ai, WANG Lian-De, WANG Jin-Ming   

  • Received:2012-03-05 Revised:2012-07-06 Online:2012-07-20 Published:2012-07-20
  • Contact: 余德亿 E-mail:yudy_2004@126.c
  • About author:E-ail: yudy_2004@126.com

Abstract: To investigate the thrips species on potted ficus and to understand the damage difference by dominant thrips to Ficus and non-Ficus potted  pl ants mixing planted in the same greenhouse, we collected the leaves of potted Ficus plants from the Ficus Planting-Demonstration Base of Zhangzhou, Fuzhou and Quanzhou, surveyed the thrips species and determined the dominant species, and the damage degree by Gynaikothrips uzeli Zimmerman on different host plants including Araceae Philodenron, Bignoniaceae Radermachera, Bombacaceae Pachira and Moraceae Ficus potted plants was also investigated. The results showed that there were 9 thrips species belonging to eight genera of two families in two suborders on potted ficus, of which G. uzeli was the dominant species, Androthrips ramachandrai Karny and Mesothrips jordani Zimmermann were the common species, and the other six thrips species were the occasional species. A narrow host range of G. uzeli was found. G. uzeli had the most serious damage to Moraceae Ficus, but had the weaker damage to Philodendron, Radermachera, and Pachira plants. Of the six Ficus species, the damage degrees of G. uzeli reached higher than level three to Ficus benjamina Linn., F. microcarpa Linn. f. and F. benjamina cv. Golden Princess, of which G. uzeli caused the highest damage to the F. benjamina Linn., the second highest damage to F. microcarpa Linn. f. and the milder damage to F. benjamina cv. Golden Princess. The damages of the pest were only level one to F. microcarpa cv. Golden Leaves, F. elastica cv. Deocora Burgundy and F. elastica var. variegata. G. uzeli had higher fecundity on F. microcarpa Linn. f. F. benjamina Linn. and F. benjamina cv. Golden Princess, and could complete one generation on them, but had the best developmental performance on F. benjamina Linn. G. uzeli had lower fecundity on F. microcarpa cv. Golden Leaves, F. elastica cv. Deocora Burgundy and F. elastica var. variegata, and could not complete one generation on them. These results offer the basic information for the control of thrips on potted ficus using host preference.

Key words: Potted ficus, thrips, species survey; Gynaikothrips uzeli, host plants, damage degree