Trichoderma are microscopic beneficial soil fungi. These fungi produce plant growth hormones and help plants process nutrients more efficiently. Growing in the root zone, rhizosphere, they are an important part of the rhizosphere food web.

Along with beneficial soil bacteria, Trichoderma create healthy soils, promote root growth and help create healthier, more productive plants. They can be applied as a seed treatment, as the time of transplant, or in-furrow with equal effectiveness.

Commercial products containing Trichoderma, sometimes called biofertilizers, have proved extremely useful and cost effective for gardeners and farmers.

Custom Biologicals manufactures and distributes a number of biological products that contain beneficial Trichoderma including: Custom GP and Biota Max. Both products contain 4 different types of beneficial soil fungi. These products are available in our store.

Custom Biologicals manufactures and distributes a wide variety of biological products including biofertilizers and soil probiotics for agriculture. Distributor inquires, both domestic and international, are welcome.

Contact Custom at (561) 797-3008 or via email at