Vegetable Problems Caused by Nonliving Factors

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Updated: June 28, 2021

How to Identify, Prevent, and Manage Plant Problems

How to ID, prevent, and manage plant problems in Maryland
no lawn landscape
Updated: July 19, 2021

Blossom End Rot on Vegetables

Blossom-end rot is a common nutritional disorder of tomato, pepper, eggplant, pumpkin, squash, and watermelon that is caused by a shortage of calcium in enlarging fruits.
rotting of the bottom end of tomatoes
Updated: June 16, 2021

Bumps or Swelling on Vegetable Stems

Bumps and swelling on the stems of vegetable plants can look suspicious but it is often normal root growth. These are called adventitious roots.
short, stubby roots growing on a tomato plant stem
Updated: June 1, 2021

Yellowing Leaves on Vegetable Plants

Yellowing leaves are a plant symptom that can be caused for many reasons. Taking a closer look can help determine the reason.
natural yellowing of older bottom leaves of kale
Updated: May 20, 2021

Whitened Leaves of Vegetables

Temperatures can injure vegetable leaves if they dip below 32° F.
cold damage on vegetable transplant
Updated: May 18, 2021

Deformed Root Crop Vegetables

Sometimes root crops like carrots become deformed as they grow in the backyard garden.
Stubby carrots
Updated: May 18, 2021

Herbicide Damage on Vegetables

Herbicides are products designed to kill undesirable weeds; however, misapplied herbicides can cause injury to vegetable plants.
herbicide damage on a tomato transplant
Updated: May 3, 2021

Fertilizer or Pesticide Burn on Vegetable Leaves

Damage to vegetable plants from excess fertilizer or from a pesticide application can mimic a disease or insect pest problem in the backyard garden.
Squash leaves damaged after spraying with an insecticide
Updated: May 3, 2021

Normal Plant Characteristics of Vegetables

Gardeners sometimes are taken by surprise that changing vegetable coloration is normal or that leaves sometimes have patterns.
squash leaves have a normal white pattern on them
Updated: May 3, 2021

Small Blisters or Edema on Vegetable Leaves

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.
edema on romaine lettuce leaves