How to prevent and control pineapple heart rot? Introduction to practical methods
This disease mainly affects seedlings, but can also affect mature plants. In affected plants, the leaves are still greenish at first, only slightly darker and duller in color, while the central leaves are yellowish-white. Afterward, the leaf color gradually turns yellow or reddish-yellow, the leaf tips dry up, and a water-soaked rotting area develops at the leaf base. The most important characteristic of this disease is that the central leaves can be pulled out easily....
This disease mainly affects seedlings, but can also affect mature plants. In affected plants, the leaves are still greenish at first, only slightly darker and duller in color, while the central leaves are yellowish-white. Afterward, the leaf color gradually turns yellow or reddish-yellow, the leaf tips dry up, and a water-soaked rotting area develops at the leaf base. The most important characteristic of this disease is that the central leaves can be pulled out easily.
Control methods: When planting, set out only after the wounds have dried. Seedlings can be soaked at the base in a 25% carbendazim 800-1000 times dilution for 10-15 minutes, then dried before planting. For affected orchards, spray with a 25% carbendazim 1000-1500 times dilution or a 70% thiophanate-methyl 1000-1500 times dilution.