茂名市区椰心叶甲发生与防治初报

调查茂名市区棕榈科植物椰心叶甲的发生及为害,结果显示:受害率为64%,最严重的是椰子,受害率达80%。通过6种施药方式在其不同寄主上进行防治试验试验结果表明:以灌心和挂药效果最佳,平均杀虫效果高于90%,防治效果80%以上。

Occurring Condition and Controlled Practice of Brontispa longissima in Maoming

Basing on the investigation on the incidence and the damage level of Brontispa Longisima in the palm plants of Maoming area, the prevention and treatment experiment were made on the different insect hosts with 6 application methods used. It was shown that the affected rate of the palm plants in Maoming was 64%, in which the coconut suffered the most serious damage with 80% of affection. The experimental results showed that the treatments with core irrigation and hanging drug bag were the most effective. The insect mortalities were higher than 90%. The prevention and treatment rates were higher than 80%.