Beans are warm-season crops, and they don’t like cold, wet soil. Excessive heat and humidity are responsible for most pest and disease problems. They often attack the young growing tips. Seeds don’t germinate. The pods will start freezing in a good manner after they get harvested, so do not be worried about having too many pods. Blackfly - Aphids, particularly Blackfly, are a common problem when growing broad beans. The rates at which beans grow depend on the variety and climatic condition. Even though you can eat the pod of this bean when it is very young it is the seed that is usually eaten. There are often multiple stems originating from the base of the plant and the compound leaves are often broad, oval shaped, and come groups of 6 leaflets to a stem. Broad beans require a 75- to 90-day growing season, depending on the variety. Broad beans need regular, deep watering for healthy, productive growth. sairbear Posts: 7. It is caused by the Botrytis fungus. Keeping the area free of debris, including post-harvest plants, is another way to alleviate problems growing beans. When you are growing broad beans during the months of March to May, which is considered to be the main growing season of broad beans, you will need to stagger the sowing once in a month in order to get a good supply. However, in mild climates, they can be planted in the fall and allowed to grow slowly through the winter for a spring harvest. Broad bean stems are strong and upright. Growing beans from disease-tolerant seeds or plants helps minimize bean problems. Disease 1: Broad Bean Chocolate Spot. Broad beans are fairly deep-rooted plants so I think a growbag would be too shallow for that, you need a deep pot per plant or a deep trough for two or three plants, maximum, if you can’t grow … Below, you’ll find information on the most common bean problems and how to avoid or fix them. Broad bean, Vicia faba, is a leguminous plant in the family Fabaceae primarily grown for its edible beans.Broad bean is a an annual vetch reaching between 0.5–1.8 m (1.6–6 ft) tall. broad beans pest & disease problems Warm, humid, spring weather can lead to the fungal disease Botrytis fabae , commonly known as chocolate spot because it … The fungus growth becomes more apparent during humid conditions. More info on Black bean aphid This is a serious disease of the plant foliage. TIP: Susan notes, "Chocolate spot is more of a problem with fall crops than spring crops." Common problems. Fall-planted broad beans can take up to 240 days to mature. On the odd occasion, though, I’ve experienced problems with growth, disease, and pests. Black bean aphid: Sap-sucking aphids will disfigure plants and cause stunting to leaves and stems. As the plants grow taller attach the stems to the twine or string in between the stakes for support. 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