The new and improved grow (Barneys farm)

Hello You can definitely use an HPS for both veg and flowering, just like you can use MH for both. However if you happen to have a ballast that is interchangeable and can take both styles it would be preferable to use MH for veg because of the spectrum and HID for flowering because of it's spectrum. But you can easily get amazing results with just 1 or the other with an entire grow. Just make sure to have a decent sized grow space and some good exhaust system. Happy growing. ✌️

Hi, Decrease humidity, decrease water intake, Make sure there is a lot air flow. Remove infected areas. You can also wipe the leaves and clean the Powdery stuff off the leaves. (usually, i removed the leaves, and keep the plant between moist and dry. I saw this online you can try it out Apple cider vinegar. This is an old, trusted way to combat powdery mildew. Mix 2 teaspoons of apple cider vinegar (organic is best) per quart of clean water. Then spray the mixture onto your plants to help organically kill powdery mildew traces Happy grow!!