期刊
JOURNAL OF ECONOMIC ENTOMOLOGY
卷 111, 期 2, 页码 808-816出版社
OXFORD UNIV PRESS INC
DOI: 10.1093/jee/toy021
关键词
Coptotermes formosanus; Odontotermes formosanus; two-choice test; Trichoderma; soil microbe
类别
资金
- National Natural Science Foundation of China [31500530]
- Young Investigator Research Grant
Previous studies showed that many wood-rotting fungi were attractive to termites; however, little attention has been paid to the relationship between termites and soil fungus. In the present study, different designs of two-choice tests were conducted to investigate the behaviors of two subterranean termites, Coptotermes formosanus Shiraki (wood-feeding lower termites) and Odontotermes formosanus (Shiraki) (fungus-growing higher termites), in response to soil (or sand) treated with the commercial conidial formulations of Trichoderma harzianum Rifai (BioWorks) and Trichoderma viride Pers. ex Fries (Shuiguxin). The short-term (1 d) choice tests showed no significant difference in termite aggregation (C. formosanus and O. formosanus) between treated and untreated soil, regardless of Trichoderma species and concentrations. However, in the long-term choice tests, C. formosanus consumed significantly more wood in the chambers containing soil treated with the conidial formulation of T. viride (1 x 10(8) conidia/g) than that containing untreated soil. The tunneling choice tests showed that sand treated with T. viride (1 x 10(6) or 1 x 10(8) conidia/g) or T. harzianum (1 x 10(6) conidia/g) significantly increased the tunneling activities of C. formosanus. However, sand treated with T. viride (1 x 10(6) or 1 x 10(8) conidia/g) had a repellent effect on O. formosanus. Our study showed that the two subterranean termites behaved differently when responding to the conidial formulations of Trichoderma.
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