Why are lower leaves yellowing and falling off? please help!

alright i searched for spinosad but couldnt find it, i got some natural pyrethrum instead, i'll be sure to cover the soil and use it only on the infested leaves, since the guy at the shop told me its not supposed to be used on plants you eat
 
something went terribly wrong >.<

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pyrethrum did much more harm than good it seems -_-..
wtf is going on?

and about the big plant, im slowly but surely raising nutrients (today i gave her about 3 gallons of water with full strenght fish mix and castings extract in it, tomorrow gonna make a tea with molasses and alfalfa meal) but she still looks hungry, what the hell? :p
 
Re: something went terribly wrong >.<

oh and Pyrethrum is fine, it breaks down very quickly and is very low toxicity for humans. Permethrin however is a synthetic based on Pyrethrum and is among a slew of chemicals based on the same. its all the synthetic ones that are really bad for us, nature had it right the first time. you MUST keep cats away from all pyrethrums, natural or synthetic. and of course its a nightmare for aquatics.
 
Do you have a touchscreen smartphone like a Droid or iphone??? If so, all you have to do is "touch" the screen in the area that you want to focus better.
It took me awhile to figure that trick out..........:thumb:
i dont think that works, my phone is touchscreen but really old
 
Listen, bro, I can tell that you're over-thinking all of this. Just relax.

That said, Jimmycricket is correct--your soil is too wet--your drainage is poor, your plants need more nitrogen and you have thrips. But even if you did nothing, you'd still get something.

I would correct those problems and then leave them alone for a while. Plants hate being adjusted all the time. They like regular, predictable conditions.

As for temp, 7º C is pushing it, but it won't kill them. You will end up with a vernalized plant (purple bud). You will just have to try it and see what happens. First time grows are just like that--no way around it.

It still seems to me that this is more likely to be the source of the non-insect issue. There's something screwy about the watering. If the lower few inches of the pot is staying wet, it will impede root growth, and you'll see it in limp dull (often yellowing) leaves. Have you seen the plant limp and dry lately? Are you sure it actually dries out, or do you always water it before it does?
 
ok I have now read the entire thread cover to cover.
You need to identify your pests. you cant just blunder around spraying it with this and that. pyrethrum can kill cats, neem oil stinks and is repelant and harmful to many critters good and bad. Discover your enemy and choose a precise weapon. pesticides CAN burn your plant and create all sorts of syptoms if used in the wrong concentrations or in the wrong environment (too hot/bright).

Insects also can produce all sorts of problems. your soil might be the best in the world, scientifically balanced PH and nutrient content e.t.c and your plant will still look awefull if its under attack by certain bugs.

I apologise to my peers that specialise in all the vast array of nutrients and admixtures that are around, but Epsom salts are seldom needed and if you use such you can cause salt issues in the soil, you must also actively take control of the cal-mag-sulphur triangle or you will cause lockouts.

Its my personal opinion that to fix these plants you need to do some of the following..

Identify attackers and research the best ways to kill and then repel them.

Make up a large volume of water and pour in a sack of lovely organic compost & a bottle of cheapo liquid seaweed and let it stew for a day, pour in a nice dose of h202. just before you use it, then flush with that, not too fast, water it well and leave for 10 mins then water it again e.t.c if you have got salt deposits or imbalances this should fix it completely. ( if your working with the 3% h2o2 then if you put in 1 part 3%h2o2 to 4 parts water and this strength is not only an amazing oxygen drink for your plant, but is actually strong enough to kill fungus gnat larvae and other such critters.)

I recommend that if your going to continue to grow outdoors, you do some research on companion planting to grow yourself some allies and also consider making your own composts from garden/vegtable waste e.t.c

hope this helps =)
edit: yes h202 will kill goodies in the soil, but that's the price your probably going to have to pay for this plants survival. there is something wrong in the soil, it could be bugs or overwatering or root rot e.t.c, h202 will remedy all of these issues nicely. h202 doesn't kill for very long and it should leave you with beautifully clean organic soil rich in oxygen and nutrients. life will soon return. you should also consider innoculants and organic accelerants.
 
It still seems to me that this is more likely to be the source of the non-insect issue. There's something screwy about the watering. If the lower few inches of the pot is staying wet, it will impede root growth, and you'll see it in limp dull (often yellowing) leaves. Have you seen the plant limp and dry lately? Are you sure it actually dries out, or do you always water it before it does?
if thats the case i can water every 3 days instead of 2, i'll do that no problem. and i water my plant when the soil is completely dry and the pot feels light, but maybe ur right. though i feel like the pest problem is more urgent now, gonna read gigabane's post in a second
 
Yep, I agree the pest problem is more urgent.

If you can check the pot every few hours, you could just wait until it goes limp. In my experience, that never hurts a plant, as long as you catch it within a couple hours. I've been surprised countless times when I though I should water and then waited a day, and they still didn't need water. And there IS a slight possibility that you have some sort of salt/toxic buildup. If you let them go dry, that will let you give them a good flush without worrying about 'em getting too soggy.
 
ok I have now read the entire thread cover to cover.
You need to identify your pests. you cant just blunder around spraying it with this and that. pyrethrum can kill cats, neem oil stinks and is repelant and harmful to many critters good and bad. Discover your enemy and choose a precise weapon. pesticides CAN burn your plant and create all sorts of syptoms if used in the wrong concentrations or in the wrong environment (too hot/bright).

Insects also can produce all sorts of problems. your soil might be the best in the world, scientifically balanced PH and nutrient content e.t.c and your plant will still look awefull if its under attack by certain bugs.

I apologise to my peers that specialise in all the vast array of nutrients and admixtures that are around, but Epsom salts are seldom needed and if you use such you can cause salt issues in the soil, you must also actively take control of the cal-mag-sulphur triangle or you will cause lockouts.

Its my personal opinion that to fix these plants you need to do some of the following..

Identify attackers and research the best ways to kill and then repel them.

Make up a large volume of water and pour in a sack of lovely organic compost & a bottle of cheapo liquid seaweed and let it stew for a day, pour in a nice dose of h202. just before you use it, then flush with that, not too fast, water it well and leave for 10 mins then water it again e.t.c if you have got salt deposits or imbalances this should fix it completely. ( if your working with the 3% h2o2 then if you put in 1 part 3%h2o2 to 4 parts water and this strength is not only an amazing oxygen drink for your plant, but is actually strong enough to kill fungus gnat larvae and other such critters.)

I recommend that if your going to continue to grow outdoors, you do some research on companion planting to grow yourself some allies and also consider making your own composts from garden/vegtable waste e.t.c

hope this helps =)
edit: yes h202 will kill goodies in the soil, but that's the price your probably going to have to pay for this plants survival. there is something wrong in the soil, it could be bugs or overwatering or root rot e.t.c, h202 will remedy all of these issues nicely. h202 doesn't kill for very long and it should leave you with beautifully clean organic soil rich in oxygen and nutrients. life will soon return. you should also consider innoculants and organic accelerants.

ok those are definately all good things to do for the future, but h2o2 won't fix my current pest issue, not to mention here in italy its hard to find anything, even if i do find a good product i wont be able to buy it... and im not even sure what pest it is, a guy said thrips does that seem right to u?
 
its an outdoor grow, it could be thrips and several other things, you need to look at what insects float around your area, for example I have to deal with a couple of flies when I grow outdoors round here ;) there are a lot of critters that do their damage in the soil and plenty that do above ground damage. you could be under attack by several things, hence the need to identify. The reason I recommend h2o2 the most in this instance is because of the watering habbits, if you have indeed overwatered the plant then what happens is the tiny hairs on the roots suffocate and shrivel and the water becomes stagnant and without oxygen. the plant MUST have lots of oxygen in the soil or it will fall ill and die with all maner of symptoms. if you don't want to use h2o2 because of the friendly bacteria, then you will need to use bubblers or something to add the oxygen until your plan has recovered. to be honest the soil doesn't look like it has nearly enough drainage mixed into it for the amount you water but short of repotting in a new mix, trying to push up the oxygen levels long enough to allow the pot to properly dry out before they suffocate is the key ;)
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I just reread the thread and I forgot you have different issues on different plants. I would advise everyone to go back and rescan.

Ok, you have at least one tall plant that you originally posted about. It had dull, yellowing lower leaves. But the rest of it looks good! The top leaves are reaching up, nicely ridged, good green color. You had been working on the yellowing issue with this plant - had done a flush, etc. This is the one that I think was simply over-watered, and then got worse with all the messing around. Could you go through that history again?

Then you also have what looks like thrip damage on some smaller plants. Which ones, how many, have the leaf damage?
 
I just reread the thread and I forgot you have different issues on different plants. I would advise everyone to go back and rescan.

Ok, you have at least one tall plant that you originally posted about. It had dull, yellowing lower leaves. But the rest of it looks good! The top leaves are reaching up, nicely ridged, good green color. You had been working on the yellowing issue with this plant - had done a flush, etc. This is the one that I think was simply over-watered, and then got worse with all the messing around. Could you go through that history again?

Then you also have what looks like thrip damage on some smaller plants. Which ones, how many, have the leaf damage?
the big plant didnt get worse, she is alright, as gigabane said to give her more oxygen, in 2 days i'll give her a tea so thats plenty of oxygen. (alfalfa + molasses tea).
its the 2 small plants that got worse because of the pests, and the ones i need to fix asap. i used neem, didnt work. used nettle, didnt work. used pyrethrum, only burned the plants. idk what to do here
 
its an outdoor grow, it could be thrips and several other things, you need to look at what insects float around your area, for example I have to deal with a couple of flies when I grow outdoors round here ;) there are a lot of critters that do their damage in the soil and plenty that do above ground damage. you could be under attack by several things, hence the need to identify. The reason I recommend h2o2 the most in this instance is because of the watering habbits, if you have indeed overwatered the plant then what happens is the tiny hairs on the roots suffocate and shrivel and the water becomes stagnant and without oxygen. the plant MUST have lots of oxygen in the soil or it will fall ill and die with all maner of symptoms. if you don't want to use h2o2 because of the friendly bacteria, then you will need to use bubblers or something to add the oxygen until your plan has recovered. to be honest the soil doesn't look like it has nearly enough drainage mixed into it for the amount you water but short of repotting in a new mix, trying to push up the oxygen levels long enough to allow the pot to properly dry out before they suffocate is the key ;)
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i'll give her oxygen with a tea, but problem is, strangely enough, i almost never see any insects flying around. and when i do see them(rarely), they just seem like the average insect you get when walking in the woods, nothing that would attack a plant, but then again im not an expert so idk. they look like really small ladybugs and are black
 
still waiting on answers here... i dont know what the bugs are... well they're probably thrips but i dont know what to do against them, cant find shit where i live and pyrethrum only burned my plants >.<


actually , i found out that my damage looks more like leaf miners, how to get rid of those?
 
still waiting on answers here... i dont know what the bugs are... well they're probably thrips but i dont know what to do against them, cant find shit where i live and pyrethrum only burned my plants >.<


actually , i found out that my damage looks more like leaf miners, how to get rid of those?

Yep. Pyrethrins burn. I'm not a fan. You can't find spinosad? It is used in lice shampoos, so maybe look around a drug store? Besides that, I don't think you will get complete control over them--it's the only thing that will really put a complete stop to them.
 
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