What are galls?

Galls are indeed characterized as swellings or abnormal growths that occur on various plant parts, such as leaves, stems, or roots, usually in response to the presence of certain organisms, including insects, mites, or fungi. When these organisms invade the plant, they can disrupt the normal growth process, leading to the formation of galls.

These growths can vary in shape, size, and color, depending on the species of the gall-inducing organism and the host plant. The galls often serve as a protective habitat where the organisms can feed and develop, while the plant responds by trying to isolate and contain the invader. Understanding galls is important in plant pest management, as they can sometimes indicate underlying pest problems that may require control measures.

Recognizing the nature of galls helps in differentiating them from other plant issues, such as those caused by outright infections or nutrient deficiencies. This knowledge can be vital for maintaining healthy plants and effectively managing horticultural practices.