Recently, Shang Shanlun, a greenhouse cucumber grower in Daizhuang Village, Xiajin County Office of Xiajin County, Shandong Province, reported that the roots of his cucumbers were rotted and the plants were wilting. I do not know what to do. I rushed to the scene and found that the stem base of the cucumber seedlings was water-stained, the epidermis became brown, and the interior was rotted. The vascular bundles did not change color. According to the symptoms, he inferred that his cucumber had stalk rot.
1. Prevent cold damage. Ensure that the minimum temperature during seedling period is not lower than 13°C, the temperature difference between day and night is around 15°C, and the ground temperature during planting is not lower than 15°C.
2. Medication Irrigation. In the seedling stage and after planting and easing the seedlings, rooting agent such as hymexazol was added to root and prevent disease.
3 timely medication control disease. Because the disease is often accompanied by bacterial diseases, it is recommended that the stems of agricultural streptomycin plus perindopril or metalaxyl be sprayed, sprayed once every 3-4 days, and sprayed twice. In addition, 100% liquid 0.15% tetramycin smearing effect is also very good.
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