施設トマトにおける黄色粘着トラップと蛹トレイによるマメハモグリバエの幼虫発生予測

概要

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The efficiency of adult counts on yellow sticky traps and pupal counts in trays to estimate the larval occurrence of Liriomyza trifolii (Burgess) in tomato greenhouses were evaluated based on the relationships between the former counts and the number of larvae or mines found on leaves, and between the latter counts and the number of larvae found on leaves. A significant correlation was found between the number of adults per trap per day and the density of larvae 1 week after trapping adults in an experimental greenhouse and in commercial greenhouses controlled by chemicals. No significant relationships were found in commercial greenhouses where the leafminer was controlled with parasitoids. A significant correlation was found between the cumulative number of adults per trap and the density of mines 1 week after trapping adults in all greenhouses. In an experimental greenhouse, the number of pupae caught per tray per day was significantly correlated with the number of larvae per plant. However, it was not significantly correlated with the number of larvae 1,2,3,and 4 weeks after counting pupae. The capture rate of emerged pupae changed from 36.3% to 5.0%, due to the increased number of leaves per plant. Consequently, it is suggested that the yellow sticky trap is more reliable than the pupal tray for estimating densities of larvae and mines of L. trifolii on tomatoes.
日本応用動物昆虫学会の論文
1998-08-25