Biological control is a component of Integrated Pest Management (IPM) where pests such as insects, mites, weeds, and bacterial and fungal based plant diseases are controlled using other organisms.
It utilizes natural behaviors such as predation, parasitism, herbivory, the production of antibiotics, the stimulation of natural plant defenses (localized or systematic), or other mechanisms to achieve prevention or control of pests and diseases.
Bacillus amyloliquefaciens colonizes plant roots and stimulates plants to both grow and to activate their immune systems, resulting in resistance to pathogens. These bacteria also outcompete other microbes and inhibit both bacterial and fungal plant pathogens. Read on to learn more about this biocontrol agent.
Bacillus thuringiensis (Bt) is a microbial insecticide that is highly specific for certain kinds of insects and safe against people and non-target animals. Certain strains control caterpillars, mosquitoes, black flies, and a few kinds of beetles. Read on to learn how to use this novel but natural insecticide.
Bacillus subtilis can control a range of fungal and bacterial pathogens in the soil and on leaves. It directly inhibits other microbes and also stimulates the plants to control pathogens using their own natural resistance mechanisms. Read on to learn more about these versatile bacteria.
Trichoderma harzianum T-22 is a highly developed fungal strain that effectively controls a number of fungal pathogens of plants. This fungus colonizes plant roots and does not affect other beneficial microbes like mycorrhizae or Rhizobium. Read on to learn more about this fascinating organism now on Gardener’s Path.
The bacteria Streptomyces lydicus colonize plant roots and protect them against fungi and bacteria that cause disease. They can also be sprayed on plant leaves to control foliar pathogens. These bacteria are safe for people and beneficial insects. Read on to learn how they work and how to use them in your garden.
Beneficial nematodes are microscopic parasitic roundworms that control soilborne insects in their larval and nymph stages. They introduce bacteria that kills their insect hosts, providing a welcome space to nurture their young. Whoops! Not a very welcome guest! Read on to learn how to use them to combat garden pests.
Did you know that not all insects are pests? Many beneficial varieties may already be living in your gardens, helping to control populations of bugs that enjoy feasting on veggies, herbs, and flowers. Read on to discover who your friends are, and how to encourage them to work and thrive in your yard.