Detailed Guide to the Cultivation and Management Methods of Potted Jerusalem Cherry

When Jerusalem cherry is grown in the ground, conditions such as soil, water, fertilizer and light are all favorable for the plant's normal growth, flowering and fruiting, so it can thrive with lush branches and abundant red berries even without careful management. In pots, however, due to the limitations of the container and the constraints of climatic factors, excessive water easily causes root rot, leaf drop or flower drop, while overly dry potting soil easily causes root shrinkage, plant wilt and leaf drop, making normal flowering and fruiting difficult. Especially during the flowering period, if the potting soil alternates between wet and dry unpredictably and fertilizer concentration is uncontrolled, it very easily leads to flowering without fruit set, or flowering with only few fruits.

Potted Jerusalem cherry requires loose, fertile, well-drained sandy loam rich in organic matter, with 5% composted cake fertilizer or chicken and duck manure added. After the seedlings are transplanted into pots, spraying with New High-Lipid Film can effectively prevent above-ground moisture from evaporating and seedling moisture from transpiring, isolate pests and diseases, shorten the seedling recovery period, and help the plants quickly adapt to the new environment and grow healthily.

After surviving the seedling recovery period, carry out normal watering, just enough to keep the potting soil moist, and loosen the soil and fertilize once every half month. Provide ample light, and when the plant reaches about 10 cm in height, pinch off the growing tips to encourage branching. Spraying Flower Promoter No. 3 can convert the plant's vegetative growth into reproductive growth, inhibit excessive growth of the main shoot, and promote flower bud differentiation. When the plant enters the bud stage, pause fertilization and control watering at the same time, and try not to spray water, which can both avoid washing away pollen. Spraying Fruit-Stem Strengthener thickens the fruit stem, increases nutrient delivery, and prevents flower and fruit drop. When the fruits grow to the size of mung beans, resume watering with cake fertilizer solution, increase the amount of watering, and at the same time give appropriate foliar spraying. When the fruit diameter reaches 0.5 cm to 0.6 cm, appropriately thin out the overly dense small fruits, and remove diseased and insect-damaged fruits, so that the fruits on the potted plant are evenly distributed and uniform in size, thereby improving the ornamental value of the potted plant.

Potted Jerusalem cherry is prone to anthracnose during high summer temperatures. It mainly affects the leaves but can also affect the stems. There are two types of symptoms: one occurs on the leaves. In the early stage of the disease, round lesions appear on the leaves, changing from round reddish-brown to grayish-white, then to dark brown, and producing black dots arranged in concentric rings, which are the pathogen's acervuli. This disease occurs on leaf margins and leaf tips, and in severe cases the leaves wither, turn black and die. The pathogen is a fungal disease, and the fungus overwinters as mycelium in host residues or in the soil. Old leaves begin to develop the disease from late April to early May, the disease progresses rapidly from June to July, and is more severe in the rainy season, while new leaves begin to develop the disease from August. When potted flowers are placed too close together and leaves overlap, the disease is easily transmitted, but disease resistance differs among varieties.

Control methods:

1. Disease control:

Select excellent disease-resistant varieties.

In the early stage of the disease, cut off diseased leaves and burn them promptly to prevent the pathogen from spreading, avoid placing plants too close together and overhead watering, and always maintain ventilation and light transmission.

In the early stage of the disease, spray 50% carbendazim wettable powder at 700-800 times dilution or 75% chlorothalonil at 500 times dilution.

2. Pest control:

The main pest of Jerusalem cherry is aphids, which are small, green or black, and often gather in groups on the tender branches and leaves of many ornamental flowers to suck nutrients.

Control method: Spray with 40% omethoate emulsifiable concentrate at 2000 times dilution or 50% dichlorvos emulsifiable concentrate at 1500-2000 times dilution.