Asparagus bean root is moist and drought-tolerant. Therefore, on the basis of ridge cultivation, small water should be poured to avoid water accumulation in the field, resulting in roots unable to breathe and causing plant death.
Prevention and control measures: flood irrigation should be avoided, timely drainage, conditions can be properly removed after the sunny day.
The disease mainly affects the stalks. Sometimes the leaves and pods are also damaged. The stalks are curled up at the base of the stalks, causing the upper part to wilted and die. When the humidity is high, the diseased part produces white mycelia. Usually, the disease is caused by poor ventilation and high soil moisture.
Control measures: Can be sprayed with 72% of DuPont Kelu 500 times or 72.2% of Propex 800 times. Even spray 2 or 3 times.
Fusarium wilt is mostly invaded by capillary roots. The diseased leaves turn yellow and fall off easily. There are sometimes cracks in the roots. Finally the plants wilted and died.
Control measures: The most effective method is to use 50% DT500 twice as much as 20% of tolclofos-methyl to irrigate the roots before the onset or early onset, and 7 to 10 days for 2 to 3 consecutive times.
Root rot diseased leaves turned yellow from top to bottom and withered. Leaves start to dry from the leaf edge, not easy to fall off, the diseased plants are easy to pull out, the stem base and root dark brown, lateral roots fall off, the main root rot, and finally the disease plants die.
Control measures: In the initial stage of the disease, spraying or watering with 1500 times solution or root rot is 300 times, and mix with harvest 1 800-1000 times to root, 7-10 days, 2 or 3 times in succession.
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