How to translate text using browser tools
10 March 2023 Integrated pest management of Hypsipyla robusta shoot-tip borer (Lepidoptera: Pyralidae) in Chukrasia tabularis (Sapindales: Meliaceae)
Nguyen Minh Chi, Duy Long Pham, Nong Phuong Nhung, Nguyen Thi Hai Hoa, Truong Tat Do, Tran Thi Le Tra, Vu Van Loi, Pham Thi Thu Thuy, Nguyen Duc Hai, Duong Xuan Tuan, Pham Quang Thu, Bernard Dell
Author Affiliations +
Abstract

Chukrasia tabularis A. Juss produces a valuable timber but plantations are susceptible to attack by the shoot-tip borer Hypsipyla robusta Moore. An integrated pest management (IPM) approach is desirable to limit the extent of damage. Therefore, this study was undertaken to evaluate the deployment of IPM measures in plantations in Vietnam. Data on tree damage and the biology of H. robusta were gathered in 4 provinces over one year and used to build an investigation schedule. Two preliminary IPM trials were then established in which Bacillus thuringiensis and Metarhizium anisopliae were applied to the foliage when the damage incidence (P%) was in the range 5–10%; and insecticides (Carbaryl, Carbosulfan) were applied when the P% exceeded 10%. In addition, larvae and pupae were removed manually over time. In the first trial, the combination of manual and biological control methods reduced the damage index (DI) of trees from 4 tolerant families by 82% compared to the untreated control plots. In the second trial using standard planting stock, application of insecticides was required to reduce the DI by 83%. Six extended IPM trials were undertaken using the same IPM protocols and these reduced the DI to the same extent as in the preliminary trials. Over an 18-month period, the deployment of IPM increased height growth by 19–22% and diameter growth by 38–41% compared to the controls. These findings highlight the value of planting improved seed and the benefit of adopting an IPM approach to manage the shoot-tip borer.

Nguyen Minh Chi, Duy Long Pham, Nong Phuong Nhung, Nguyen Thi Hai Hoa, Truong Tat Do, Tran Thi Le Tra, Vu Van Loi, Pham Thi Thu Thuy, Nguyen Duc Hai, Duong Xuan Tuan, Pham Quang Thu, and Bernard Dell "Integrated pest management of Hypsipyla robusta shoot-tip borer (Lepidoptera: Pyralidae) in Chukrasia tabularis (Sapindales: Meliaceae)," Journal of Economic Entomology 116(2), 486-495, (10 March 2023). https://doi.org/10.1093/jee/toad033
Received: 21 September 2022; Accepted: 4 February 2023; Published: 10 March 2023
JOURNAL ARTICLE
10 PAGES

This article is only available to subscribers.
It is not available for individual sale.
+ SAVE TO MY LIBRARY

KEYWORDS
insect pest
integrated pest management
mahogany
plantation
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top