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anyone found a treatment for Colorado potato beetles?
2021-06-13 10:42:41 | read: 4557
Colorado potato beetles (Leptinotarsa decemlineata) are destroying my potato crop every year.  JWA is not working.  I have also sprinkled some diatomaceous earth on the leaves and it seems to slow down the larva but not stop them from feeding.  Has anyone successfully won the battle against a large infestation of Colorado potato beetles with JADAM methods?  Ginkgo is not available to me.  I am in North America.  
2021-06-13 10:42:41
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  • BeerTooth 2021-06-14 23:42:17

    thank you for the encouraging message. I only began applying JMS one month ago after reading the JADAM book. Perhaps it needs more time to take effect. Can you tell me how often the JMS solution is applied to potato fields throughout the growing season?
    Also we have been told to rotate fields yearly when growing potatoes, to move away from over-wintered beetles, and to prevent the buildup of fungal pathogens. However the JADAM lectures say yearly crop rotation is not necessary. Can you tell me if you are able to grow potatoes in the same field every year?
     

    • 숨결 2021-06-14 08:48:23

      There is also damage in Korea. When the soil is improved using JMS, the damage is not increasing.  

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