Japhy_Ryder

Hey peeps,

I've had a couple of these spots before now but it seems they've multiplied. What they are are white "dusty" spots, basically spots of white dust that can mostly be rubbed off of the leaves, under it there's yellow spots forming. They are mostly on the middle/top leaves.

What I think it is is simply during the last feed the leaves were splashed with some of the nute water and droplets sat on the leaves, drying and leaving residue from the nutes, hence my ability to rub off a lot of the white stuff. To solve this I planned on just spraying down the two affected with some RO water and maybe continuing to rub 'em off. To further this theory, the two that have the spots were fed a higher nute-water ratio than the others.

But, as I am still a little newbie, I figured why trust myself? Better ask the folks at GC.

It doesn't look like there are any infestations.. I checked under the leaves for white flies and haven't seen any bugs yet. (knock on wood)


Pics:










1. Are you growing from seed or clones? Clones
2. How old are your plants? ~ 1 month
3. How tall are your plants? ~ 1 ft-1 1/2 ft
4. What size containers are they planted in? 5 gal
5. What is your soil mix? FF Ocean forest
6. How often do you water and what type of water do you use? A little more than once a week
7. What is the pH of your water? ~6.4 last feeding
8. What kind of fertilizer do you use and what is its NPK ratio? Big Bloom, Tiger Bloom for these two
9. Do you foliar feed or spray your plants with anything? Not yet
10. What kind of lights do you use and how many watts combined? (HPS, MH, fluorescent, halogen, incandescent "plant lights") 400w HPS
11. How close are your lights to the plants? < 1 ft.
12. What size is your grow space in square feet? ~ 15 at a guess
13. What is the temperature and humidity in your grow space? low 70's 40%
14. What is the pH of the soil? Not sure (runoff is at input level 6.4)
15. Have you noticed any insect activity in your grow space? No
16. How much experience do you have growing? First Grow




Thanks!

Attached Thumbnails

     

__________________


“I went to the woods because I wished to live deliberately, to front only the essential facts of life,
and see if I could not learn what it had to teach, and not, when I came to die, discover that I had not lived.”
-- Henry David Thoreau



+ Helpful Links! +
+ New GJ - Come on by and say hi! +

Mr.Furly

I'm not an expert but I think its powdery mildew. Theres sprays for it.

Japhy_Ryder

Ack.. mildew... I didn't think it would be mildew or mold of any sort as the humidity has been on the low side recently. Then again temps at night when the lights are off have been low as well so.. I'll pick up some plant shield just in case.

Other opinions?

__________________


“I went to the woods because I wished to live deliberately, to front only the essential facts of life,
and see if I could not learn what it had to teach, and not, when I came to die, discover that I had not lived.”
-- Henry David Thoreau



+ Helpful Links! +
+ New GJ - Come on by and say hi! +

bagboy

yep powdery mold... a.k.a. botryis (edit, i think botryis is bud rot)

this may help http://www.gardenscure.com/420/growi...milk-mold.html

__________________
gc chat
complete grows:
second hempy grow
first hempy grow

arnold layne

definately powdery mildew.
pm does not need high humidity to thrive.

i've been having great luck using a sulphur/seaweed spray.
4Tbs sulphur (safer's garden fungicide)
2Tbs maxicrop seaweed extract
1gal water.

using a pump sprayer, spray every bit of the plant, top and undersides of every leaf, and all over the stems. i usually only have to spray them down every 3-4 weeks or so.

it is important to note, do NOT use neem oil if using sulphur. it will burn your girls to a crisp.

increasing the air circulation seems to help a bit as well.

good luck.

peace-
arnold layne

__________________
"Those who beat their swords into plowshares will plow for those who don't."

arnold gets dirty soma 10 x ak47 PAUSED
onward, through the fog (super cheap ultrasonic revisited) ABORTED
attack of the kushy sattelites ptII. the neglected strike backFINISHED
attack of the kushy sattelites FINISHED
super cheap ultrasonic aeroponic project FINISHED

Japhy_Ryder

Oh noes! Well thanks a ton guys.. now I'll just have to deal with it. Let's hope it doesn't spread any more. I'll be heading to the hydro store in an hour so or so to pick up something.

__________________


“I went to the woods because I wished to live deliberately, to front only the essential facts of life,
and see if I could not learn what it had to teach, and not, when I came to die, discover that I had not lived.”
-- Henry David Thoreau



+ Helpful Links! +
+ New GJ - Come on by and say hi! +

bobbooty

powder mold.

use neem oil for control and eradication of PM.

__________________

Welcome to gardenscure.com. Growing marijuana in the United States is a federal offence. Aquisition of live cannabis seeds is illegal in the United States. The Garden's Cure Posting Guidelines can be found here.The Acceptable Use Policy can be found here. The grow guide can be found here. My SoG growroom can be seen in my journal. want to learn more about medical marijuana in the US? check out the Americans For Safe Access site here. and MediCann here. | Journal of the year awards 2009 |

Japhy_Ryder

Allrighty... I wanted something 100% organic and not too stinky (i.e. not sulfur) and this was recommended as the best product aside from doing a whole $100+ sulfur burn.




I'll be spraying the babies once a week until the end of the grow.. I'll let you guys know how it works out.


Thanks again!

Attached Thumbnails

 

__________________


“I went to the woods because I wished to live deliberately, to front only the essential facts of life,
and see if I could not learn what it had to teach, and not, when I came to die, discover that I had not lived.”
-- Henry David Thoreau



+ Helpful Links! +
+ New GJ - Come on by and say hi! +

bobbooty

the sulfur treatment didnt work well for me. i tried it, and got scared because it looked like i was burning the plants, and i couldnt have that, so i took my $100+ unit back to the store and got my money back.

__________________

Welcome to gardenscure.com. Growing marijuana in the United States is a federal offence. Aquisition of live cannabis seeds is illegal in the United States. The Garden's Cure Posting Guidelines can be found here.The Acceptable Use Policy can be found here. The grow guide can be found here. My SoG growroom can be seen in my journal. want to learn more about medical marijuana in the US? check out the Americans For Safe Access site here. and MediCann here. | Journal of the year awards 2009 |

Japhy_Ryder

Ah Bob that makes me feel even better about the route I went.. I didn't like the idea of setting up a sulfur burn in my small space anyways.

__________________


“I went to the woods because I wished to live deliberately, to front only the essential facts of life,
and see if I could not learn what it had to teach, and not, when I came to die, discover that I had not lived.”
-- Henry David Thoreau



+ Helpful Links! +
+ New GJ - Come on by and say hi! +