On Infectious Degree of 25 Species of Poplar by Valsa sordida Nits;

Isolation,identification and drug sensitivity of the pathogens of the skin ulceration disease in Apostichopus japonicus;

Occurrence and Control of Valsa sordida Nit. in Urban Avenue Trees in Songyuan City;

The Cinnamomum camphora bark rot usually occurs on the stems and side branches of the seedlings with 2~3 a,with an occurrence rate of 38%.

Research of the Microecological Health Technique on Popular Canker (Cytospora Chrysosperma);