Abstract:The selectivity of six plants species by Liriomyza sativae Blanchard was evaluated using choice tests in a net-house (2.5m×2m×1.5m). The six plant species were grown together in rectangular plastic pots (100cm×50cm×30cm) and 6 pots were used in the experiment. At the 4~5 leaf stage, one leaf was sampled from each of six plants from each host plant species. Leaves from each species were pooled and 1g of fresh tissue cut into 0.2~0.3 cm pieces and soaked in 10 mL methanol for 30h at 25℃. The extract was filte...