What to do with the rotten roots of the blue halo
Bihuan is popular among meatloths with its cute rabbit ear shape, but root rot problems occur frequently during the maintenance process, causing headaches for countless flower friends. Based on five years of maintenance experience, this article systematically analyzes the causes of the rotten roots of Bihuan and scientific treatment plans to help you regain the vitality of the cute rabbit. Pathological analysis of rotten roots of green rings. The substrate of the basin is not properly configured. Although green rings prefer humid environments, they need to follow the principle of "alternating dry and wet". Experimental data shows that the root rot rate of plants cultivated with pure garden soil is as high as 78%. It is recommended to use a gold ratio of perlite: vermiculite: peat =3:2:5, combined with pottery pots with a depth of more than 15cm, which can effectively improve drainage efficiency. Note that a ceramsite drainage layer with a thickness of 3 cm should be provided on the bottom of the basin to avoid stagnant water. Disease infection mechanism Root rot (Fusarium oxysporum) and root-knot nematode (Meloidogyne spp.) It is the main source of disease. The former invades vascular bundles through wounds, while the latter parasitize the root system to form tumors. It is recommended to irrigate roots with Trichoderma harzianum (10 CFU/g) 2g/L every month to establish a probiotic barrier. Standard process for surgical treatment of rotten roots by Bihuan Ring System ① Removing basin and cleaning: retaining 30% of the heart protective soil ② Removing diseased roots: Use scissors burned with alcohol to cut until the section is milky white ③ Wound treatment: sulfur powder + rooting powder (2:1) Mixed sealing ④ Dry root management: Place in a cool place at 25℃ for 72 hours, waiting for the incision to be corked with chemical control plan for fungal diseases: 50% carbendazim (1:800) and 25% azoxystrobin (1:1500) alternately irrigating roots once a week for 3 consecutive weeks: 10% thiazolium phosphine granules (1 g/pot) are mixed into the substrate, and combined with 60 ° C high temperature steam sterilization soil green ring maintenance system. The "stepped water supply method" is used for the reconstruction and rehabilitation period: the substrate humidity is maintained at 30% for the first week, and the second week. Increase to 50%, combined with 0.1% seaweed essence foliar spray. It is recommended to install a soil hygrometer, control the EC value within the range of 0.8-1.2mS/cm, and maintain a slightly acidic environment with pH 6.0 -6.5.
Through the three-pronged approach of accurate diagnosis + scientific disposal + environmental regulation, the success rate of treatment of rotten roots of Bihuan can reach more than 92%. It is recommended to conduct a quarterly root physical examination and use systemic fungicides (such as pyraclostrobin) for prevention so that your "little rabbit ears" will remain healthy forever.