An abbreviation for the three main nutrients that have been identified as absolutely necessary for plants are nitrogen (N), phosphorus (P) and potassium (K). These three are also known as "ma [..]

Hand picking, vacuuming or physically killing pests. Insect traps and barriers are also effective mechanical controls.

Able to decompose or break down through natural bacterial or fungal action. Substances made of organic matter are biodegradable.

Any member of the crucifer family, including cabbage, Brussel sprouts, kale, cauliflower, and broccoli.

The practice of modifying a growing environment to reduce the prevalence of pests. Examples include changing irrigation methods or selecting resistant plants.

The material used to grow a plant or germinate seeds.

The stage of development between larva and adult in insects with a complete metamorphosis.

A fleshy plant that holds water in its stems or leaves, such as aloe or cacti.

Describes the general health of the soil including a balance of nutrients, water, and air. Soil that is healthy and has good physical qualities is in good tilth.

Soil with a pH between 0 and 7.0. Sometimes referred to as "sour" soil by gardeners.