Investigation of Anthracnose and Heortia vitessoides on Aquilaria sinensis in Hekou of Yunnan

Taking the Aquilaria sinensis bruce of Basa-farm in Hekou as object，authors researched and investigatied Anthracnose and Heortia vitessoides for one year. The results showed that The Anthracnose spreaded gradually，the epidemic curve was multimodal and wave，the damage rate was 8.7%，the disease index was 1.79， hazard peak periods were May and September，the incidence of disease was low and the disease index was lighter. The Heortia vitessoides damage occurred widely，the disease grade was heavy and the population density was big， the insect leaves rate was 9.0%，the insect amount from one hundred leaf was up to 22.3， the hazard peak periods were March to April and October to December. The incidence regularity of Anthracnose and Heortia vitessoides had significant or not significant correlation with climate factors， the main influence factors were sunlight， temperature and humidity.