Lung VQ Scan. Also known as lung or pulmonary ventilation (V) and perfusion (Q) scans. A lung VQ scan is an imaging test that uses a ventilation (V) scan to measure air flow in your lungs and a perfusion (Q) scan to see where blood flows in your lungs. It uses special x ray scanners outside of your body to create pictures of air and blood flow patterns in your lungs.
Yellow leaf spot, also known as leaf septoria, are caused by Septoria cannabis and S. neocannabina. These are fungal pathogens aimed specifically at marijuana plants. It is brought about by warm weather and rain and effect marijuana grown outdoors.
Lawn Repair â Fix a Bare Spot. Bare spots on your lawn can be caused by a variety of factors, like over-fertilizing or lack of water. Maybe you spilled some weed killer on it the last time you were treating those dandelions or filled up your mower. Whatever the cause was, the cure is to re-seed it and get grass growing again.