关键词: 沙棘象, 沙棘, 平茬

Abstract: The weevil Curculio hippophes Zhang is a seed bores of Hippophae rhamn-oides L. , which usually causes serious damage to it. It widely distributes in H.rhamnoides forests in Liaoning Gansu and Shaanxi Provinces. There is one ge-neration a year, pupation occurs as full-grown lavral in mid-June. Emergencebegins in early July with a peak from late July to early August. The just ha-tched larvae occur in mid-August. Hibernation takes place in mid-October. Theadults are very active from 11-20 hours. Copulation and oviposition occur from16-19 hours. Stubbing the trees of seriously infected H. rhamnoides fover inwinter or spraying 2.5% decis at a dilution of 1:5000 to the adults during thepeak emergence period may obtain significant effectiveness.

Key words: Curculio hippophes Zhang, Hippophae rhamnoides L., Biononics, Controlling measures