Undiagnosed — Bhutan
[In Chirang district,] cardamom orchards [are showing] yellowish-brown hues mixed with a green tint. Many plants are affected, forming yellowish- brown to reddish-brown patches. Leaves have dried up. What has affected the crop remains unknown to many farmers. They claim that it has become a common cause of declining yield. Farmers say that the leaves dry after the roots rot.
According to the [local] agriculture official, the cardamom plants suffer from the attack of microbial agents like
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