1. Select a field: Choose a sunny plot with good drainage. Soybeans can be planted in late June every year.

2. Collect larvae: capture healthy larvae from soybean fields in the wild and put them in planting fields. In autumn, beanworms will sneak into the soybean roots and overwinter.

3. Pupate and lay eggs: Bean bugs pupate in the soil from May to June every year. At this time, soybeans are planted to provide food for the bean bugs and allow them to lay eggs on the soybean leaves.

4. Feeding method: After the eggs hatch, put them indoors and feed them every day.