A non-choice type of experiment was conducted in a greenhouse at Campinas to study the oviposition of B. tabaci on two introductions (PI 171451 and PI 229358) and one commercial variety (Santa Rosa) of soybean. Previously these introductions were less oviposited by the whitefly in a free-choice type of experiment when compared to commercial varieties. The observed average number of eggs per square centimeter of leaf were 0.82, 0.42 and 0.41 for 'Santa Rosa' susceptible, PI 171451 (resistant) and PI 229358 (resistant), respectively. These results showed that the lower rate of for oviposition observed previously is maintained when the insect does not have a chance to oviposit on a susceptible variety.