Investigation on Population and Damage of Thrips in Different Macadamia Species
Seven macadamia species,O.C,H2,A4,A16,816,344 and 333,were selected to investigate the population and damage of thrips.This study investigated the species and quantity of thrips at flowering stage,early fruiting stage,fruit ex-pansion stage and nutrient accumulation stage.At the same time,the damage rate of the fruit before harvest was investigat-ed.The results showed that at least 7 species of thrips could harm macadamia.The thrips are mainly adults at flowering stage and nymphs at fruit stage.Thrips coloratus is the dominant species.In the comprehensive evaluation of the occur-rence degree of thrips,344 was the lowest,followed by H2 and A16,816 was the highest,followed by 333.
万方数据
维普
