Field-scale evaluation on the efficacy of a novel benzoylphenylurea TXH09 against chewing insect pests harming vegetables and rice

Published on Dec 1, 2019in Crop Protection2.17
· DOI :10.1016/j.cropro.2019.104925
Xianghu Zhao (ECUST: East China University of Science and Technology), Chunmei Li1
Estimated H-index: 1
(ECUST: East China University of Science and Technology)
+ 4 AuthorsSong Cao (ECUST: East China University of Science and Technology)
Abstract Structure optimization of benzoylphenylurea inhibitors (BPUs) reduces the risk of resistance and facilitates rational use with good efficiency. TXH09 [N-((2,6-dimethyl-4-(heptafluoropropyl-2-yl)phenyl)carbamoyl)-2,6- difluorobenzamide], a new BPU compound, was developed by derivation from a heptafluoroisopropyl group and possesses better polarizability, lipophilicity and permeability. In this paper, field-scale evaluation on the efficacy of TXH09 was performed against vegetable pests (Laphygma exigua H., Plutella xylostella L., Spodoptera litura F. and Pieris rapae L.) and rice pests (Cnaphalocrocis medinalis G., Sesamia inferens W. and Chilo suppressalis W.) in different regions of China. TXH09 was delivered as 5% emulsifiable concentrate (EC) and 5% water dispersible granules (WDG). Insect populations in all plots were investigated during field experiments and the controlling efficacy (%) after spraying with TXH09 was calculated. The results showed a good efficacy of TXH09 for pest control and avoidance of leaf damage in field trials. TXH09 EC had good controlling efficacy causing declines in larval populations of L. exigua, P. xylostella and S. litura by 3 days after treatment, and maintaining high efficacy for the next 7–10 days. TXH09 WDG also exhibited a superior controlling effect on P. rapae, C. modinalis, S. inferens and C. suppressalis larvae. Moreover, TXH09 also displayed a considerable protective effect on rice leaf growth, and showed higher controlling efficiency on the insect pests than hexaflumuron at the same active dose. The results indicate that TXH09 as a new prospective insecticide is favorable for the pest management in vegetables and rice.
  • References (30)
  • Citations (0)
#1Vasileia Balabanidou (FORTH: Foundation for Research & Technology – Hellas)H-Index: 4
#2Anastasia Kampouraki (UoC: University of Crete)H-Index: 4
Last.John Vontas (FORTH: Foundation for Research & Technology – Hellas)H-Index: 39
view all 15 authors...
#1Zihua Zhao (CAS: Chinese Academy of Sciences)H-Index: 11
#2Hardev S. Sandhu (UF: University of Florida)H-Index: 8
Last.Feng Ge (CAS: Chinese Academy of Sciences)H-Index: 27
view all 4 authors...
#1Fujin Fang (Nanjing Medical University)H-Index: 6
#2Weijie Wang (Nanjing Medical University)H-Index: 10
Last.Changliang Zhu (Nanjing Medical University)H-Index: 15
view all 9 authors...
#1Yongqiang Li (CAU: China Agricultural University)H-Index: 18
#2Yaoguo Qin (CAU: China Agricultural University)H-Index: 3
Last.Yun Ling (CAU: China Agricultural University)H-Index: 12
view all 8 authors...
#1Jingyan Sun (CAU: China Agricultural University)H-Index: 3
#2Pei Liang (CAU: China Agricultural University)H-Index: 15
Last.Xiwu Gao (CAU: China Agricultural University)H-Index: 26
view all 3 authors...
Cited By0