TIP: Susan notes, "Chocolate spot is more of a problem with fall crops than spring crops." The fungus growth becomes more apparent during humid conditions. Most years, I’ve had no trouble with growing beans. Beans prefer warm weather, full sun, and well-drained soil. 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. Common problems. Excessive heat and humidity are responsible for most pest and disease problems. Black bean aphid: Sap-sucking aphids will disfigure plants and cause stunting to leaves and stems. On other beans, catch populations when small and squash. Broad bean problems. It is also called grey molding of the broad beans. Broad beans require a 75- to 90-day growing season, depending on the variety. This is a serious disease of the plant foliage. These can be pinched out and the plants sprayed with a suitable insecticide. 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, 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 … 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 … ... You say you are waiting on some growbags to plant out. Growing beans from disease-tolerant seeds or plants helps minimize bean problems. Below, you’ll find information on the most common bean problems and how to avoid or fix them. Remedy: In the case of broad beans, pinch out infested tips. Blackfly - Aphids, particularly Blackfly, are a common problem when growing broad beans. More info on Black bean aphid On the odd occasion, though, I’ve experienced problems with growth, disease, and pests. As the plants grow taller attach the stems to the twine or string in between the stakes for support. Beans are warm-season crops, and they don’t like cold, wet soil. Seeds don’t germinate. Step 5 – Broad bean plant growth. Even though you can eat the pod of this bean when it is very young it is the seed that is usually eaten. The rates at which beans grow depend on the variety and climatic condition. They often attack the young growing tips. Disease 1: Broad Bean Chocolate Spot. 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. Broad bean stems are strong and upright. Broad beans need regular, deep watering for healthy, productive growth. The pods will start freezing in a good manner after they get harvested, so do not be worried about having too many pods. 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. Fall-planted broad beans can take up to 240 days to mature. Broad beans are not the easiest plant to grow in our climate, but are worth giving a try and hoping winter lasts long enough to get a good crop. sairbear Posts: 7.