Observation of Leaf Infected with Leaf Miner
The leaf of a local weed was collected for study due to the irregualar presence of an unknown white streak throughout the leaf. The streak appears on the sun facing side of the leaf. The streak has no particular pattern, following the veins of the leaf in some areas, and crossing a series of veins in others. The streak has two obseravable ends where it may have began and ended. One end of the streak measures about 1mm and gradually narrows to approximately 0.2mm. The thicker end has higher concentration of blackened areas within the streak, and within the thickest point of the streak there appears to be withered and dead patch measuring 5mm. The streak is faintly visable on the underside of the leaf, and cannot be easily removed from the top of the leaf. This suggests that the streak lies just underneath the surface of the leaf.