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  • Answered by
    Nikki on
    September 21, 2012
    Certified Expert
    A.

    Bacillus thuringiensis (Bt) spray can quickly eradicate these leaf and stem-eating worms. It is a safe, biological insecticide. In fact, Bt is a bacterium which is toxic to many moth and butterfly larvae (caterpillars) and will not harm the plants or other beneficial creatures. Here is more information: https://www.gardeningknowhow.com/plant-problems/pests/using-bacillus-thuringiensis.htm

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  • Answered by
    Nikki on
    October 2, 2012
    Certified Expert
  • Answered by
    AnnsGreeneHaus on
    April 5, 2013
    A.

    If you put a clear glass container in the sun, it is possible that the water can get too warm for the roots. Since root systems are underground, I would suggest an opaque or colored container. Basil, and most any other herb, needs as much sun as possible when grown indoors.

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  • Answered by
    AnnsGreeneHaus on
    May 12, 2013
    A.

    I have found that basil, along with other herbs, perform best outside in full sun, rather than indoors. Most often, basil takes the more severe "beating" for it is a fast grower. Your description sounds like the plant is reacting to a lower light location than what it prefers. I would think that placed back outside, it's appearance will revert to the look it had. If you have slugs (and they love basil) reappear, simply place a ring of finely crushed eggshells around the basil plant.

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  • Answered by
    Heather on
    June 11, 2013
    Certified Expert
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  • Answered by
    AnnsGreeneHaus on
    July 20, 2013
    A.

    Sorry, I don't have any definitive answer to offer. I harvest my plants so often that the leaves don't have time to dry. Sometimes, at the end of the season, the really old leaves turn black and are dry. I grow sweet Genovese, maybe other varieties have this problem.

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  • Answered by
    tednap on
    July 19, 2013
    A.

    To AnnsGreeneHaus, I agree I do not like the Dried leaves and discard them. But I do not know why some leaves on the plant start to dry out when the rest are healthy on the same stalk.
    Do you have any ideas on the cause? I do not see any tiny bugs on the bottom or top of the leaf.

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  • Answered by
    AnnsGreeneHaus on
    July 18, 2013
    A.

    Personally, I don't like dried basil. I will use wilted basil, especially in pesto. The only time leaves dry on my plant(s) is late in the season, or have had '' mechanical'' damage. (The leaf got hit, and the center stem gets damaged.)

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