OGKush auto CBD @Barcelona@Balcony@March

Day 75: Using a x60 loop bought on Amazon, I was able to identify some milky TRICHOMAS. Time for a root wash !!! Looking around I decided to go for the traditional way, using a lot of tap water. But during three days down the road, we get very bad weather with a lot of rain with high humidity level. Day 78: The leaves start to get yellowish due to lack of nutrients caused by the roots wash. Till now everything seems fine. But looking a bit closer I've noticed some white marks and ... Damn it's due to the apparition of POWDERY MILDEW (see the pictures). I suppose the root wash weakened the plant and the three days of bad weather with high humidity didn't help :( Looking around I've found a great article showing how to control Powdery Mildew before harvesting (https://www.ilovegrowingmarijuana.com/powdery-mildew/). Day 79: Went to the grow shop to buy an organic fungicide to prevent further development of the Mildew and spray the entire plant. Hope this will help. *Any pieces of advice on this problem are welcomed :)*