The greenhouse is not an easy task. In the process of greenhouse cucumber cultivation, the phenomenon of decaying and flowing gum at the stem or graft interface of cucumber is often found. The main reason for this phenomenon is that due to the infection of pathogens, the diseases of the stems and grafts of the above-ground cucumbers are mainly diseases such as blight, blight, wilt and sclerotinia. There are two main symptoms of victimization:
One is water-soaked.
The stems are softened and contracted. In severe cases, the epidermis is intact, but the internal decays, and the vascular bundle does not change color, which occurs more than the graft interface. The main disease is due to the epidemic disease, and it can be applied by foliar application and mildewed high-fat film.
The second is the amber or white gel on the interface or the wound after picking up the melon.
This situation is mainly caused by the infection of blight and blight. These two diseases can be alternately controlled by three methods: irrigation, smearing and spraying. The root can be used for wilting Tiandan + Babaan or yellow wilting + rooting solution; the spray can be used to make the cucurbit thickening and strengthen the directional delivery of nutrients. It should be sprayed once every 5~6 days; Ling + bacteriocin or sit Gua Ling + Tian Dan.
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