螺旋粉虱危害对番石榴光合作用的影响

Effects of Damage by Aleurodicus Disperses Russell on Photosynthesis of Guava

测定番石榴植株受害后净光合速率的变化。结果表明,螺旋粉虱的危害降低了番石榴顶部功能叶片的净光合速率,螺旋粉虱分泌的蜜露,滋生大量的煤烟菌,形成厚厚的煤烟层,严重影响这些叶片的光合作用。

The changes of net photosynthetic rate of guava plants were determined. The results showed that the damage by Aleurodicus disperses Russell decreased the net photosynthetic rate of the top leaves of guava. Aleurodicus disperses Russell secreted honeydew which produced large amount of soot fungi, forming a thick soot layer. Thus the photosynthesis of the leaves were seriously affected.