香根草在水稻螟虫绿色防控中的应用效果

为推广实施水稻病虫绿色防控技术,开展了香根草种植诱杀水稻螟虫试验。通过调查,田埂种植香根草大螟2代和3代危害穴率分别达到92.3%和82.4%,种植香根草的田块水稻枯心率显著低于未种植区。香根草诱控大螟产卵效果显著,可以有效减轻大田螟害。

Application Effect of Vetiveria zizanioides in Green Control of Rice Borer

In order to popularize and implement the green control technology of rice diseases and insect pests,the experiment of planting Vetiveria zizanioides to trap rice borer was carried out. According to the investigation,when V. zizanioides was planted on the ridge of the field,the damage rate of the second and third generation of Sesamia inferens to V. zizanioides reached 92.3% and 82.4%respectively,and the dead heart rate of rice seedlings planted with V. zizanioides was significantly lower than that in the unplanted area. The results showed that V. zizanioides could effectively attract female adults of S. inferens to lay eggs,which could effectively reduce the damage of rice borer.