한국응용곤충학회 학술대회논문집 2014 한국응용곤충학회 추계학술발표회 , 응용곤충학의 현안 - 검역과 곤충산업 Frontiers in Applied Entomology - Quarantine and Insect Industry (p.22-22)

Efficacy of Ethyl Formate and Phosphine Applied Alone and in Combination to Imported Pineapple to Control the Citrus Mealybug

키워드 :
Fumigant toxicity,ethyl formate,EF,phosphine,PH3,mixture effect,citrus mealybug,Planococcuscitri

초록

Methyl bromide(MB) is a fumigant for quarantine and pre-shipment(QPS) that can eradicate target pests within short fumigation periods. However, MB, an ozone-depleting substance, is scheduled to be phased out in the second decade of this century. In contrast to MB alternatives for soil fumigation, there is no ideal alternative fumigant to MB for QPS of perishable commodities. It is important that all target insect pests are killed within a short fumigation time.
The citrus mealybug(Planococcuscitri), a problematicquarantine pest from Korea, was exposed to ethyl formate and phosphine for different times and to different concentrations of EF(0.0∼33.4 mg/L) and PH3(0.25∼1.0 mg/L) in small desiccators. The eggs showed more tolerance than the nymphs and adults. To control the eggs, they were treated with a mixture of EF and PH3 for 2 and 4-hr. The egg stage showed 100% mortality with EF:PH3(25.1:0.25, 16.7:0.5, and 16.7:1.0 mg/L) at 4-hr. Treatment with a mixture of EF and PH3 for 4-hr at 8°C can control all stages of the citrus mealybug.