Habits of Anoplophora chinensis Which Causes Harm to Casuarina equisetifolia and Its Control

In 1989～1992,the reseach results showed that Anoplophora chinensis has one generation a year,but in the whole,about 15% of them has two generations in three years.Its damage degree is obviously correlated with the plant age,stand density and stand condition.The total accumulated temperature of 1 200 ℃ was needed in the period when after overwintering,the larva after recovering is changed into adults.Its emergence peak day(time)was obviously coincided with in full bloom day(time) of Casuarina equiselifolia in the stand.Through the investigation of 8 263 sample trees and about one hundred thousand plants checkd,a chance of 100% can be reached of its emergence hole distributed in 25 cm above the ovipositing slot. A mortality above 90% can be reached by daubing trunks at above the egg hole about at 25 cm with 40% omethoate in 1:4 time solution of kerosine and the technical points in the synthetical control were suggested.