Best solution for controling aphids on wintered peppers

crrand(z4 MN)January 14, 2014

I usually overwinter some of my potted chili plants to allow a head start in the spring. Around now, they usually start getting infested with aphids. I do root and branch pruning in the fall before I bring them in. New soil and clean pots as well. Furthermore, I fumigate them for a few days with a safe pesticide within a garbage bag. Doesn't help. I suspect the aphids are coming from my house plants, although they never get infested. For the aphids, I've been spraying with insecticidal soap and rinsing in the shower because I like to be able to pick and use any of the peppers that develop during the winter. Does anyone have a better recommendation for control?

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crrand(z4 MN)

In case it isn't clear, the peppers overwinter in my living room in a south facing window.

    Bookmark   January 14, 2014 at 8:03PM
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Sounds like you're doing everything right. Insecticidal soap has always worked for me. I soak the plant pretty good, let it set for a bit, then rinse. Repeat every 2-3 days until they're gone. If you suspect some other houseplants as the source, are you treating them as well, or just the infested peppers?

    Bookmark   January 14, 2014 at 10:49PM
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How big are the plants when u r over wintering? Do you have pics?

    Bookmark   January 15, 2014 at 7:48PM
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greenman28 NorCal 7b/8a

I just sprayed my Black Pearl this afternoon with Neem Oil....and then I sprayed my Hungarian Wax for good measure, even though I didn't see any aphids on the latter.

That's about the best method I've found....spray, rinse, repeat, as Tsheets mentioned. Treat plants *before* the infestation occurs.


    Bookmark   January 15, 2014 at 8:46PM
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Do you have ants? I know first hand in a greenhouse the aphid can be just a symptom of another problem. Placing traps can help I tried a sulfur bomb years ago. DO NOT DO THIS it was a sad site . Thank god my peppers cam around [weeks and weeks later] I hate aphids. Some people dip there plants getting all those arias those SOBs can hide.I would NUKE THE BASTARDS only they would only be replaced by pepper eating cockroaches .Aphid control is an important part of pepper propagation and I for one am always looking for a better way. None last year Knock on wood.

    Bookmark   January 16, 2014 at 11:18AM
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neem oil will not help prevent aphids. It will not kill the eggs.

    Bookmark   January 18, 2014 at 4:25PM
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greenman28 NorCal 7b/8a

Neem Oil will kill the aphids.


    Bookmark   January 19, 2014 at 12:17AM
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Josh, I'm not sure if that post was for my benefit but you are correct It will kill the aphids but to use neem as a preventative is not a good practice because it will not kill the eggs.

    Bookmark   January 19, 2014 at 9:45AM
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Best thing I ever used- Diatomaceous earth (DE). Doesn't harm the plant like oils or soaps that can strip off the natural oils on the leaves making them more susceptible to insect infestations. DE dries out the eggs and and cuts them up as soon as they hatch. Use the fine ground powder specifically for insect control, not the chunk DE that you get as oil absorbents.

    Bookmark   January 19, 2014 at 12:06PM
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greenman28 NorCal 7b/8a

Yep, I was clarifying that the Neem recommendation was to kill the aphids themselves - to prevent an infestation by crushing the numbers and possibly disrupting hormones as soon as the aphids appear. Neem has many properties and will deter certain pests - but I don't think aphids bite deeply enough into the tissue to get a strong dose of the active ingredients. Which is why the Neem is used as a simply suffocant in the case of aphids. It takes times, though, it's not an overnight cure.


    Bookmark   January 19, 2014 at 1:49PM
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