Experiment of Green Pesticide on Killing Pine Moth of <i>Pinus tabulaeformis</i> Plantations

Abstract

Experiments were done on poisoning pine moth of Pinus tabulaeformis plantation with mixed liquid of wooden vinegar and the extract liquid of Chelidonium majus, Polygounum aviculare, Urtica angustofolia, Euphobia fischeriana, and Angelia dahurica in Suizhong County of Liaoning Province. The results showed that it could prevent and kill larva of pine moth of Pinus tabulaeformis quite well by using 20 times liquid of Urtica angustofolia, and the highest rate of mortality was 100%.