Vote Now 🏆 for the Grow Awards 2025!
By continuing to use the website or clicking Accept you consent to our cookies and personal data policy and confirm that you are at least 18 year old. For details please see Privacy Policy and Terms
Accept
Fungal disease??? I do think Peronospora
TheGoodFellazstarted grow question 4 years ago
Is this a fungal disease?
I am pretty sure that's a fungal called Peronospora, due to the circular yellowing on the upper side on the leaf and the snowy coating on the lower one!
I will reply appreciate Any advice given.
I already treated her yesterday with some Bordeaux mixture
likes
Answer
Peggersanswered grow question 4 years ago
Definitely lacking phosphorus here. U could raise ur ph a little bit to help the uptake. And don't over water them! Let the top inch or 2 dry out before u rewater. Also I believe that the temperature has sonething to do with it. But I'm not sure what degrees it has to be over without researching. Probably about 18 I would imagine but I can't say it's a fact sorry.
likes
Complain
Robertsanswered grow question 4 years ago
Looks like phosphorus deficiency. Or ph in ground is not ideal.
1 like
Complain
Similar Grow Questions
Solved
buddhi_coop
Infested or no?Are my leaves infested? If so, how do i get rid of it in late flowering? My other plants leaves look normal (last couple photos)Other. Bugs
Other. Mold
Other. General questions
4 years ago
1
1
Solved
TheNewGuy94
Fabric pot buildup?I noticed some brownish spots on one of the fabric pots, not sure what it is, I know theres some salt buildup but this is formed mor like spider webs with interlocking strands almost. What is it? Could it be the myco in the soil or something? Doesnt smell like mold/mildewOther. Mold
4 years ago
1
3
Solved
Frm11001
Alguna ayuda? oidio: Sphaerotheca macularisHola!, estoy en la semana numero 11 de mis automáticas, cerca de la cosecha y he descubierto inicios de este hongo en varias hojas, parece ser leve pero me preocupa y no sé que hacer, tengo 4 automáticas y 1 esta infestada, hoy he descubierto que otra esta comenzando también!Other. Mold
4 years ago
2
Solved
Bipa420
Estou com mofo na terra e estou tratando com bicarbonato. Qual a melhor forma de acabar com o mofo?Week 5
Other. Mold
4 years ago
3
Solved
HiddenMessage
Is this orangish color natural , or is it a mold? Jus appears a lil oddWeek 15
Other. Mold
4 years ago
1
Solved
Edenganj
Mold ??Hi,
This is my roommates plant. I think it’s starting to get some type of mold on it. He sprayed it down with baking soda and water I guess, not sure how effective that is. What do you guys think it is? And what should he do?
My plant will be going out there and I am worried.Other. Mold
Plant. Other
Setup. Outdoor
4 years ago
5
5
Solved
Edenganj
Yellow spots/ mildewHi again,
This is my roommates plant. I think it’s starting to get some type of mold on it. I spotted yellow and white specs.He sprayed it down with baking soda and water I guess, not sure how effective that is. what should he do? (Updated pics)Leaves. Color - Yellow
Other. Mold
4 years ago
2
2
Solved
buddhi_coop
Co2, tempAre these okay levels? Been kind of hard to manage the heat in my tent. Weather here is super hot right now.Other. Mold
Other. General questions
Setup. Ventilation
4 years ago
1
Solved
gogocrack
Okay? Continue?Okay? continue?
Dude, how many days do you think it is in harvest?
Calyx from photos.
Flowering day 51.Buds. Other
Other. Mold
4 years ago
4
5
Solved
rando_herber
Mold on stored coco/worm castingsHey all,
I mixed together 40L of Coco and 10L of worm castings, and left it sitting with a lid. Sure enough, it has some mold growing on the top. Can I still use this medium or should I just throw it out? (Not broke, but cheap!)
ThanksWeek 2
Other. Mold
4 years ago
5
5
Solved
Everest
Fungi in floweringFound fungus on a girl's leaf. my first actions were to carefully remove the leaves that were contaminated and the excess leaves to improve ventilation. I also washed the Grown with disinfectant. What should I do next? It's 4 weeks to harvest, should I anticipate it to avoidWeek 10
Other. Mold
4 years ago
3
3
Solved
nanaboham
How do I reduce humidityI have my grobox in the loft but it's got very high humidity 60-80. What's the best way to get it down to 40-50% for flowering? I already have a mini dehumidifier, 2x fans in the box. A dyson cool fan outside the box. Any tricks? Can't afford to spend mad moneyWeek 5
Other. Mold
4 years ago
3
4
Solved
sorethumb
humiditythe humidity has been controllable with my a/c… but we just had a few days of rain and humidity. my plant has a mildewy smell. i see no signs of mold at this time… is it time to play it safe and get a dehumidifer?, or will a couple days of 55% humidity be enough to stave off moldOther. Mold
3 years ago
1
1