Evalution on the host plant species and fitness to vegetable leafminer and its harmfulness
美洲斑潜蝇的寄主植物种类、适合度及其为害性的评价

The host plant species of vegetable leafminer Liriomyza satiae Blanchard in Shanxi Province were investigated There were 29 cultivated and 11 wild plant species under 16 families determined as its host plants and Cucurbitaceae,Solanaceae and Leguminosae were dominant The goodness of fit of 16 common host plants to the leafminer were quantitatively tested and the model for estimating their selection intensity and fitness level was established According to the fitness indexes,the host plants of L sativae have been divided into three categories by the hierachical clustering analysis:the most suitable,suitable and secondary Through the determinations of the mine area and pupal weight for L sativae on host plants,the effects of different host plants on the development of L sativae were preliminarily defined The results provided a theoretical basis for the control decision of this leafminer