Ethyl Formate Fumigation for Controlling Two Major Aphid Pests, and , on Passion Fruit, from Cultivation to Post-Harvest Storage

Overview

Journal Insects

Specialty Biology

Date 2024 Jun 26

PMID 38921101

Authors

Jeong Oh Yang

Dongbin Kim

Young Su Lee

Ki-Jeong Hong

Byung-Ho Lee

Min-Goo Park

Affiliations

Soon will be listed here.

Abstract

Tropical and subtropical crops are being increasingly cultivated in South Korea, leading to an increase in damage by exotic insect pests. Consequently, ethyl formate (EF) is currently being considered for quarantine and pre-shipment fumigation. In this study, we evaluated the effectiveness of EF fumigation for controlling Patch and Glover, two representative quarantine pests on passion fruit ("Pink Bourbon") during greenhouse cultivation and post-harvest storage. The efficacy of EF against both aphids in terms of the lethal concentration causing 50% mortality (LCt) and LCt was 1.36-2.61 g h/m and 3.73-7.55 g h/m under greenhouse conditions (23 °C), and 1.37-2.02 g h/m and 3.80-14.59 g h/m post-harvest (5 °C), respectively. EF at 4 g/m for 4 h resulted in 100% mortality of , which was more resistant to EF, without causing phytotoxic damage to the trees in a 340 m greenhouse. Post-harvest fruit fumigation at 10 g/m for 4 h in a mid-size (0.8 m) fumigation chamber resulted in complete disinfection. Moreover, the EF level decreased below the EF threshold within 10 min after natural ventilation in the greenhouse. Therefore, our results suggest EF fumigation as an effective method for controlling . and . .

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