Common hyacinth pests and diseases control methods

Yellow rot

symptom

When the disease occurs, many spots will appear on the leaves of the plant, as if they had been flooded. The lesions gradually turn yellow or brown, the bulbs produce yellow mucus and begin to rot.

Prevention and treatment methods

Choose strong, sterile bulbs when planting.

Before planting, disinfect the bulbs and soil with formalin solution. If you want to do hydroponics, you must use unpolluted clean water.

When the disease occurs, you can spray carbendazim solution once every 2 to 3 days. The symptoms will be relieved after 3 to 5 sprays.

Sclerotinia

symptom

The main site of disease occurrence is the bulb, which gradually migrates upward, and the leaves turn yellow and yellow streaks appear.

Prevention and treatment methods

Choose strong, sterile bulbs when planting.

Disinfect the potting soil with pentachloronitrobenzene, sprinkle it directly on the soil, stir evenly and then plant.

Diseased plants should be dealt with promptly and diseased leaves should be removed promptly.

Botrytis cinerea

symptom

The leaf tips change color and the leaves become wrinkled. If the environment is too cold or too humid, the flower stems will easily rot. In severe cases, gray sclerotia will appear on the leaves. In particular, the pathogen will produce spores when it overwinters in the soil, accelerating its spread.

Prevention and treatment methods

Reduce the source of infection: remove diseased leaves as soon as they are found.

Chemical control: Spray Bordeaux mixture, mix it in a ratio of 1:1000, spray 2 to 3 times, with an interval of 1 to 2 days.

Clubroot

symptom

It mainly harms the roots. When the disease first occurs, the roots grow normally. When they grow to a certain extent, many small white tumors will grow on the roots. The plant grows weakly, the flowers sometimes shrivel, and in severe cases the whole plant dies.

Prevention and treatment methods

During the storage period of the bulbs, they must be strictly disinfected and sterilized, and the storage environment must be well ventilated and at an appropriate temperature. Check once a week to see if there are any abnormalities. If diseased plants are found, burn them immediately.

The soil must be disinfected before planting.

Maintain the plant carefully and remove any dead branches and leaves on the soil surface in time. Do not turn the roots frequently during maintenance to avoid damaging the root system and increasing the probability of disease.