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Bugs eating my chokes

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Bugs going after my jerusailem artichokes and my bak choi.

Tiny things only feed at night.

I'm spraying them with chilli powder in water but not sure if this'll make any difference.

Anyone know of a good organic pest deterent?

On 12/24/2025 at 5:00 PM, deadbeat said:

Bugs going after my jerusailem artichokes and my bak choi.

Tiny things only feed at night.

I'm spraying them with chilli powder in water but not sure if this'll make any difference.

Anyone know of a good organic pest deterent?

You could try Wood Vinegar น้ำส้มควันไม้ อินทรีย์ 100% ประสิทธิภาพสูง in Thai.

Or, Nem oil ,Nam man Sa-dow.in Thai

The wood Vinger link comes from Shoppy, you could try them, or Lazada for Nem oil.

Neem oil remains on the plant and is possibly the better alternative.

  • 4 weeks later...

I'm late to reply and maybe the pest problem has come and gone. But if not, or for others with similar concerns:

Can you provide better info for identification of the pest? Photo of the actual pest, photo or description of the damage. Feeding at night - are you sure its not slugs or snails? If so, then neem or vinegar or other insecticide/repellent products will not be useful.

The products mentioned, wood vinegar and neem products are good for some pest situations, but not all. The residual oil and strong vinegar taste may not be desireable for direct contact sprays, especially on leafy greens. Wood vinegar can be an effective insecticide, but it is a very harsh substance and must be used strictly according to recomended application rates and timing in the pest cycle. If too concentrated it can burn plant tissues. And for an organic program, it will certainly negatively affect the foliar microbiome and beneficial plant pest predators and parasitoids.

There is a lot of misunderstanding about neem seed extracts and leaf decoction products. Many uninformed gardeners refer to all neem products as "neem oil", but there is a big difference in these products and appropriate use, timing and residual effectiveness. In general, neem products are best for preventive treatment, not for knockdown curative treatment of advanced infestations. Its important to differentiate between actual neem oil, like cold pressed neem seed oil, or 70% clarified hydrophobic extract of neem seed, or an azadirachtin concentrate emulsion, or a water soluble aza concentrate.

Identify the pest and the damage being done, even if you have to set an alarm and go out at 2 - 5 am with a flashlight. Is the damage at an unacceptible level of loss where treatment is actually needed? For an organic program, this is an important determination. With a home garden for personal use, maybe some minimal chewing on leaf margins from early season caterpillars or slugs can be tolerated.

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