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Insects

Title:		Evaluation of Selected Plant Volatiles as Attractants for the Stick Tea Thrip Dendrothrips minowai in the Laboratory and Tea Plantation
Author(s):		Xiu C; Zhang F; Pan H; Bian L; Luo Z; Li Z; Fu N; Cai X; Chen Z;
Address:		"Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China. Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Hangzhou 310008, China. Henan Institute of Science and Technology, Xinxiang 453003, China. Institute of Plant Protection, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China"
Journal Title:		Insects
Year:		2022
Volume:		20220528
Issue:		6
Page Number:		-
DOI:		10.3390/insects13060509
ISSN/ISBN:		2075-4450 (Print) 2075-4450 (Electronic) 2075-4450 (Linking)
Abstract:		"The stick tea thrip (Dendrothrips minowai Priesner) is the main pest thrip in tea (Camellia sinensis) plantations in China, and seriously affects the quality and yield of tea. Plant-derived semiochemicals provide an alternative to pheromones as lures and these compounds possess powerful attractiveness. In this study, we selected 20 non-pheromone semiochemicals, including compounds that have been reported to attract other thrips and some volatiles emitted from tea plants as the potential attractant components for D. minowai. In electroantennogram (EAG) assays, 10 synthetic compounds (p-anisaldehyde, 3-methyl butanal, (E)-beta-ocimene, farnesene, nonanal, eugenol, (+)-alpha-pinene, limonene, (-)-alpha-pinene, and gamma-terpinene) elicited significant antennal responses in female D. minowai. In addition, a two-choice H-tube olfactometer bioassay showed that D. minowai displayed significant positive responses to eight compound dilutions (p-anisaldehyde, eugenol, farnesene, methyl benzoate, 3-methyl butanal, (E)-beta-ocimene, (-)-alpha-pinene, and (+)-alpha-pinene) when compared with the solvent control at both 1 and 2 h. Moreover, gamma-terpinene exhibited a significantly deterrent effect on D. minowai. Finally, trap catches of four compounds (p-anisaldehyde, eugenol, farnesene, and 3-methyl butanal, respectively) significantly increase in tea plantations. Among these, the maximum number of D. minowai collected by blue sticky traps baited with p-anisaldehyde was 7.7 times higher than the control. In conclusion, p-anisaldehyde, eugenol, farnesene, and 3-methyl butanal could significantly attract D. minowai in the laboratory and under field conditions, suggesting considerable potential as commercial attractants to control D. minowai populations"
Keywords:		Dendrothrips minowai behavioral response electroantennogram activity field trapping plant-derived semiochemicals;
Notes:		"PubMed-not-MEDLINEXiu, Chunli Zhang, Fengge Pan, Hongsheng Bian, Lei Luo, Zongxiu Li, Zhaoqun Fu, Nanxia Cai, Xiaoming Chen, Zongmao eng 32001918/Chunli Xiu/ CARS-19/Xiaoming Cai/ Switzerland 2022/06/24 Insects. 2022 May 28; 13(6):509. doi: 10.3390/insects13060509"