amandii in all areas investigated were damaged by Dioryctria rubella Hampson in different degree, and the damage rate was 19.

Study on Sampling Technique for Over-wintering Larva of Dioryctria rubble;

A Study on the Spatial Distribution Pattern of Dioryctria rubble;

Pineus armandicola Zhang is an important defoliator of armand pine( Pinus armandi ).

A Study on the Morphology and Biology of the Adelgid Aphid Pineus armandicola;

Population amount of Pineus armandicola Zhang in Shuangjiang County,Yunnan Province;

A Study on the Control Threshold of Pineus armandicola;

Scanning Electron Microscopy Observation on Antennal Sensilla of Dioryctria pryeri Ragonot;

Study on Host-Plant Volatiles Affecting the Host Selection of Dioryctria pryeri;

Study on Semiochemicals of Dioryctria Pryeri

EAG Response of Dioryctria Pryeri Ragonot to Volatile Components from Chinese Pine Cone;

The research results of the cone life table of chinese pine show that Gravitarmata margarotana Heinemann and Dioryctria pryeri Ragonot are two kinds of main cone pests which occur and damage from mid May to mid June in Shaanxi.

Pine coneworm, Dioryctria pryeri Ragonot (Lepidoptera: Pyalidae), is an important insect pest of coniferous cones and shoots in China.