Tea green leafhopper‐induced synomone attracts the egg parasitoids, mymarids to suppress the leafhopper

Author:

Wang Mengxin1,Han Shanjie1,Wu Yiqi1,Lin Jinli2,Zhou Jiangxuan1,Han Baoyu1ORCID

Affiliation:

1. Zhejiang Provincial Key Laboratory of Biometrology and Inspection and Quarantine, College of Life Sciences China Jiliang University Hangzhou China

2. Shanghai Farm Co., Ltd. of Bright Food Group Yancheng China

Abstract

AbstractBackgroundThe tea green leafhopper, Empoasca flavescens is the most important pest of tea plants in China. Mymarid attractants based on herbivore‐induced plant volatiles (HIPVs) from leafhopper feeding and oviposition‐induced plant volatiles (OIPVs) were formulated and tested as a novel pest control agent against the leafhopper in tea plantations.ResultsResults showed that two mymarid species, Stethynium empoascae and Schizophragma parvula, had a reducing effect on leafhopper populations. The HIPVs and OIPVs were identified and bioassayed to screen the key synomones showing strong attraction to the mymarids. They were formulated into different blends, of which Field Attractant 1, comprising linalool, methyl salicylate, (E)‐2‐hexenal, perillen and α‐farnesene at ratio of 1:2:3:58:146 (20 mg/lure), showed the strongest attraction to the mymarids. In field trials with the attractant, the average parasitism rate (60.46 ± 23.71%) of tea leafhoppers by the two mymarids in the attractant‐baited area was significantly higher than that (42.85 ± 19.24%) in the CK area. Also, the average leafhopper density (46 ± 30 per 80 tea shoots) in the attractant‐baited area was significantly lower than that (110 ± 70 per 80 tea shoots) in the CK area.ConclusionThis study showed that a synthetic blend of key volatiles from HIPVs and OIPVs at an optimal ratio can be formulated into an attractant with the potential to attract and retain wild mymarid populations to suppress leafhopper populations in infested tea plantations, so as to reduce or avoid the spraying of insecticides. © 2023 Society of Chemical Industry.

Funder

National Key Research and Development Program of China

National Natural Science Foundation of China

Publisher

Wiley

Subject

Insect Science,Agronomy and Crop Science,General Medicine

Reference45 articles.

1. Developments on tea plant pest control in past 40 years in China;Chen ZM;J China Tea,2020

2. Research progress and prospect of occurrence regularity and green control of tea green leafhopper;Wu ZH;J Tea Commun,2021

3. A push–pull strategy for controlling the tea green leafhopper ( Empoasca flavescens F.) using semiochemicals from Tagetes erecta and Flemingia macrophylla

4. Insecticide resistance on five common pesticides of Empoasca flavescens in Fujian tea growing areas;Li LD;Acta Tea Sin,2020

5. Evaluation of Botanicals for Management of Piercing–Sucking Pests and the Effect on Beneficial Arthropod Populations in Tea Trees Camellia sinensis (L.) O. Kuntze (Theaceae)

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