new seedling at 2-3rd leave pair 6 days from germ..under flouro lights appears like yellow pollen dust. Normal light make it look white. 60X mag shows small particles...very even distribution- like each cell is making this stuff. I think the plants closest to light are coated the heaviest. Plants seem fine..using PH balanced h20 and Schultz potting soil with 50% vermiculite/perlite added NO ferts or spraying.
Sounds like mildew. Whats your humidity? heres a good piece on mildew(white powder) http://www.overgrow.com/article/8
Powery mildew forms a white to grayish powery growth, usually on upper surfaces of leaves. Leaves of severely infected plants turn brown and shrivel. Improve air circulation. app a 0.5%solution of baking soda (1 tsp. baking soda in 1 qt. water) may help to control the disease.
wasnt sure this was actually a problem or sick plant... I guess mildew would be bad... the refered article pics dont match my plants, however the pics might be a more advanced case.. guess I will move my lights up a bit and see if the low temp helps to slow or stop this powder..
looking more like you guys are right...think its getting worse despite moving the lights.. I guess my problem is I dont see how mildew lives in intense light....but I will try the baking soda.. Ive been doing the high PH spray but doesnt seem to stop the mildew
Get A mild antifungal prepration spray your leave, do you have a fan in your grow ? If not get one mildew and fungus are byproducts of heat and humitidy nature provides a breeze, indoor growers need to replicate the outdoors. (Help Them To Breath)
I'm just throwing this out there, but would it help if you were to add a wetting agent to the fungicide?? I was just thinking about it so I'm asking because I don't know. I know that a wetting agent like SM90 helps get nutes into your foilage so would this aid in getting rid of mildew??
Having dealt with this problem extensively and trying damn near everything to get rid of powdery mildew I know that the one thing that truely works is a sulphur spray. I got one at a local hydro store that was safe for use on veggies. Nothing else worked I'm tellin' ya.
what about a sulphur burner I was told that this works well for mildew aswell as bugs too. What's you thoughts on that ?
Same thing Dew...different method of application from what I understand of it. It's the sulphur that does the trick.
