Studies on population development of leafminers (Liriomyza spp.) and parasitism situation
2000
Ulubilir, A. ((Plant Protection Research Institute, Adana (Turquie))) | Yabas, C.
One yellow sticky trap was placed every 200 m2 and above the plants to observe the population development of leafminer in the greenhouses in 1992. The traps were checked weekly and the number of the adults on it were recorded. To estimate the larval population, 25 leaves were collected. The situation of parasitation were studied in three different greenhouses, the leaves with mine collected from these greenhouse each week, were cultured in the laboratory for the parasite emergence. The results showed that the adult population were high during April and May, and the population decreased in June in 1992. The adult population observed in Autumn indicated that population were high in November with the peak in mid November, then drop down at the end of December. In these two studies, larval population development were observed in April and May in Spring and again showed parallel development in Autumn, and declined to zero in December. It was found that the parasitoids were Chrysonotomyia chlorogaster (Erdos), C. formosa (Westwood), Diglyphus isaea (Walker) (Hym.: Eulophidae) as results of parasitization studies. The rate of parasitization were 8-52.5 percent on tomato and 5-68 percent on eggplant in 1993
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