期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
柑橘木虱在富川发生规律及防治 被引量:1
1
作者 李秀姣 《农技服务》 2017年第15期62-62,共1页
柑橘木虱是传播柑橘黄龙病的媒介昆虫,通过对木虱各个时期的观察,为掌握最佳防治木虱的用药时间提供科学依据。柑橘木虱是柑橘嫩稍期的一种重要害虫,成虫在老叶和嫩叶上吸食,若虫群集柑橘嫩稍、幼叶和新芽上吸食危害,被害嫩稍幼芽干枯萎... 柑橘木虱是传播柑橘黄龙病的媒介昆虫,通过对木虱各个时期的观察,为掌握最佳防治木虱的用药时间提供科学依据。柑橘木虱是柑橘嫩稍期的一种重要害虫,成虫在老叶和嫩叶上吸食,若虫群集柑橘嫩稍、幼叶和新芽上吸食危害,被害嫩稍幼芽干枯萎缩,若虫排泄撒布枝叶上会引致煤烟病和影响光合作用。柑橘木虱危害果树后,由木虱导入的病原体在果树体内有一个从传染、繁殖、累积的过程(即病变过程),这一病变过程完成后果树病状才得以显现,这个过程需要的时间,因气候、果树的品种和树势不同而已,一般一至三年不等。柑橘木虱危害果树后,不立即表现病状,因此导致了许多果农认识上的失误,有的果园对柑橘木虱放任自流,在木虱防控上不设防,有的只是象征性的用药,导致柑橘木虱群体增长迅速,这几年由于果农思想上认识不高,不重视,防治上不到位,导致了果园黄龙病发病率急剧上升。因此对柑橘木虱的认知和防控势在必行。 展开更多
关键词 柑橘木虱发生规律 柑橘的防治
下载PDF
The Control Research Progress of Liberobacter asiaticum in Taizhou City
2
作者 余继华 张敏荣 +4 位作者 陶健 卢璐 杨晓 汪恩国 叶志勇 《Agricultural Science & Technology》 CAS 2015年第6期1237-1242,共6页
After decades of researches and discussions on occurrence regularity and control technology of citrus psyl id (Diaphorina citri Kuwayana) and Liberobacter asi-aticum, the occurrence regularity and sampling technique... After decades of researches and discussions on occurrence regularity and control technology of citrus psyl id (Diaphorina citri Kuwayana) and Liberobacter asi-aticum, the occurrence regularity and sampling technique of citrus psyl id in orange forests in Taizhou was defined and the connections between the infection rate and carrying rate of citrus psyl id and Liberobacter asiaticum as wel as the correlations between the Liberobacter asiaticum and citrus yield loss were discussed. This paper discussed the warnings of Liberobacter asiaticum and citrus psylid control index, the economic life span of orange forests was then predicted by building the diseases spreading models with different management styles. At last, the paper put forward the comprehensive prevention and control technology and the concept that Liber-obacter asiaticum was preventable and control able. 展开更多
关键词 Liberobacter asiaticum Citrus psyl id Occurrence regularity Disease Spreading models Control index Prevention and control technology
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部