In order to screen out a new type of effective pine wood nematode prevention and treatment agents, researchers at Jiangxi Agricultural University College of Forestry, using immersion method indoor determination of flumethrin (Zhejiang Chemical Industry Research Institute Co., Ltd. independently developed a mechanism of action of unique benzene Dimethylformamide new high efficiency insecticide), abamectin, emamectin benzoate, methomyl, terbuthyrin, methyl isophthalone and imidacloprid seven kinds of agents on the pine Nematode toxicity and its reproductive capacity, the use of high performance liquid chromatography determination of the flux distribution of flumethrin in Masson pine body and carried out in the forest between the injection of flumethrin resistant to pine Nematode disease test.

           The results showed that among the seven agents, the toxicity of flubendane to Bursaphelenchus xylophilus was the strongest, the LC50 value was 0.019 mg / L, the avermectin and emamectin benzoate followed, and the LC50 value 0.0213 mg / L and 0.0214 mg / L, respectively. Flumethrin could rapidly transfer from the base of Pinus massoniana to the top of tree treetops within 3 months after injection. The content of fluocinolone in the east and south of the sapwood was significantly higher than that of the west and north, Were higher than their LC50 values. The control efficacy of the flumethrin formulation (4.8% EC) in the forest was 73.33% for pine inoculation with artificial inoculation with pine wood nematode, and the mortality of pine wood naturally infected with pine wood nematode To 2.00%, while the mortality rates of pine wood nematode and pine wood naturally infected pine wood were 93.33% and 19.67% respectively in the control experiment.

           The above results show that flumethoxam is effective in preventing the occurrence and damage of pine wilt disease in pine trees and can be widely used in practical production.