I received a request from Saitama Prefecture to experiment with using rice husks as an organic method to prevent infestation of an insect called white peach scales (pseudaulacaspis pentagona).

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A spraying machine that you don’t see very often. The tank has a double structure for mixing and filtering the husks.

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After placing the husks into the tank, it is mixed and kneaded with added water. It’s a 500L tank, so about two bags of rice husks were needed.

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Since these are chemicals we are spraying, there’s no need for me to wear a mask.

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This is what it looks like after spraying on the tea leaves. Apparently, it isn’t the husk themselves that are effective but rather the mold that is created from the husks. I am hoping that this brings us one step closer to providing even safer tea leaves from Sayama.

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