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geokills
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Registered: 05/08/01
Posts: 1,287
Loc: city of angels
Last seen: 1 year, 5 months
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Re: Questions on my seedlings *pic* [Re: AmsuJackal]
#249114 - 07/13/09 04:24 PM (15 years, 7 months ago) |
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That's normal. The point of topping a plant is to cut it below the top node so that the lower nodes develop into branches.
It's tricky to see from your picture, but it looks like you may have cut above instead of below the top node of your plant. If you don't see a new set (at least 2 main branches) coming out above the top two leaves on your plant, you should probably remove that entire top node (cut just below those two leaves) so that you assure the proper distribution of hormones to the lower nodes in order to allow them to branch most efficiently.
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geokills
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![User Gallery User Gallery](/forums/images/gallerysmall.gif)
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Registered: 05/08/01
Posts: 1,287
Loc: city of angels
Last seen: 1 year, 5 months
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Beating Spider Mites [Re: AmsuJackal]
#258807 - 08/02/09 12:51 PM (15 years, 6 months ago) |
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I believe spider mites have a reproductive cycle that's a rolling 2 - 3 weeks between generations. Therefore, at a certain point, their population explodes and it can be very difficult to keep them controlled, even more to eliminate them entirely as few if any pesticides are effective against the mites' eggs. Therefore, prevention will always be better than the cure - and if you have confirmed their presence, make sure to act without delay in efforts to eradicate this vicious pest before the population gets too large.
By all means, start with the diluted dish soap and water, and remember to rinse the leaves with plain water in between treatments, otherwise you risk the dish soap clogging up the plant's stomata which will stunt growth.
If the dish soap and water doesn't work, you can try adding a little bit of garlic, cinnamon/clove oil, and/or lemon juice to the solution. Just make sure to test it on a small part of the plant first and observe for 36 hours to make sure it isn't too strong. These mixtures can burn the leaves. As an added measure of protection, you should spray at the beginning of your dark cycle to reduce the risk of burning your leaves as well as to keep the environment more humid, which the spider mites will not appreciate. If your light is close to the plant, remember to wait for it to cool, as too much water-mist landing on a hot light bulb can cause it to explode!
If the stronger solution fails, you can spring for some pyrethrins, which are insecticidal organic compounds. While pyrethrins are toxic, they are not very dangerous to humans and have been used as an organic crop dusting agent in agricultural farming as well as indoor agriculture for some time. You can also find them in some shampoos designed to remove lice/ticks from humans and pets. Riptide 5.0% Pyrethrin is a common solution that works well.
If you need something even more potent, you can consider a synthetic pesticide such as Syngenta's Avid, but that stuff is much more toxic and should never be applied to a plant that has already started to flower.
Good luck.. those mites are a pain in the ass!!
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