Vegetable Problems - Nonliving

Bumps and swelling on the stems of vegetable plants can look suspicious but it is often normal root growth. These are called adventitious roots.

The severity of plant damage caused by air pollution varies with plant species, the time of day, and with environmental conditions such as heat, wind conditions, sunlight, and soil type.

Rising temperatures from climate change can disrupt the pollination of food crops. Learn how heat stress affects vegetable plants and what you can do.

Excess soil moisture combined with cool temperatures, overcast weather, and poor air circulation can cause a buildup of water pressure leading to small blisters on leaves, called edema.