Parasitic and Control Effects of Paecilomyces lilacinus against Aquilaria sinensis Root Knot Nematode in Hainan Province

Authors Xu Tianwei; Hao Huihua; Lin Chunguang; Qin Fenren

Journal Journal of Henan Agricultral Sciences , 2012,3:41

Abstract The parasitic effect of Paecilomyces lilacinus against Aquilaria sinensis(Lour) Gilg root knot nematode eggs was determined indoors with double temperature determination in Hai-nan province.The result showed that 91.10% of the eggs were parasitized by the fungus at 18 days after inoculation with spore suspension of 3*10~7 spores/mL.The result of field experiment showed that Paecilomyces lilacinus solid inoculant could inhibit reproduction and harm of Aquilaria sinensis(Lour) Gilg root knot nematode,the bigger the agent dosage,the better the control effect.At 60 days after treated by the fungus solid culture at dose of 50 g/plant,the disease index was only 9,and the control effect reached 87.50%.Meanwhile,the plant height of Aquilaria sinensis(Lour) Gilg increased by 32.1%,and the fresh weight of the above ground part increased by 46.6%.The fungus solid inoculant showed a significant and lasting prevention effect on Aquilaria sinensis(Lour) Gilg root knot nematode disease.Paecilomyces lilacinus can not only inhibit parasitism and reproduction of Aquilaria sinensis(Lour) Gilg root knot nematode,but also promote the plant growth.

Species covered 土沉香 Aquilaria sinensis