Vegetable garden harvest is at its peak. While most gardens produce an abundance of vegetables, some encounter problems that lead to lower yields. Issues can be environmental or due to insects or diseases.
If green beans or tomatoes produce flowers but no fruit, it is likely related to environmental conditions that are not conducive to flower fertilization. Both of these vegetables are selfpollinating meaning they do not require insect pollination in most cases.
Temperature is a key factor that affects bean and tomato production. High temperatures above 85F or low temperatures below 70F can lead to plants producing flowers but no fruit. Pollination may occur, but flower ovaries are not fertilized. Soils that become too dry between watering also inhibit fruit development as does hot, dry winds.