Plants that are infected must be destroyed as the disease can be transmitted from plant to plant by contaminated sap. Symptoms include dark green ink bleed marks in the veins of yellow-colored leaves, and/or tissue collapse between veins.
Exposure to EMF and cancer. Magnetic fields are classified by the International Agency for Research on Cancer (IARC) as a possible cause of cancer, particularly for childhood leukemia. However, experts agree that there may be other explanations for the potential link between exposure to EMF and childhood leukemia. Until scientific evidence can clarify the link between exposure to magnetic fields from high-voltage power lines and cancer risk, you may not want your children to play directly beneath them for long periods of time.
1 Then, as these charged particles excite gases in our atmosphere, they make make them glow - just like gas in a fluorescent tube.  The solar wind can cause the Earth's magnetic field lines to disconnect from our planet. When these field lines snap back into position, charged particles from the solar wind are again pushed into the Earth's atmosphere, causing aurora. The more magnetic field lines that disconnect and snap back, the further south the Northern Lights can be seen.