PURPOSE: A composition containing Photorhabdus temperata subsp. temperata is provided to reduce damage from Meloidogyne incognita when cultivating eco-friendly crops. CONSTITUTION: A composition containing Photorhabdus temperata subsp. temperate for preventing root-knot nematodes contains a Photorhabdus temperata subsp. temperata culture medium as an active ingredient. The culture medium contains 1-5 wt% of anthraquinone. The composition is manufactured in the form of a solution, a suspension, an emulsion, a paste, a gel, or powder.
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