{"requested":["tomato","basil","marigold","carrot"],"resolved":["tomato","basil","marigold","carrot"],"unknown":[],"report":{"crops":["tomato","basil","marigold","carrot"],"beneficial":[{"crop":"tomato","companion":"basil","type":"beneficial","mechanism":"shade_provider","description":"Tomato canopy provides afternoon shade that protects basil from leaf scorch and bolting in hot summer climates; useful pairing in mediterranean and arid beds.","strength":"moderate","source":"UC ANR Master Gardener publications"},{"crop":"tomato","companion":"carrot","type":"beneficial","mechanism":"shade_provider","description":"Tomato canopy shades carrot tops during late summer heat, slowing bolting and reducing greening on exposed shoulders of carrot roots.","strength":"moderate","source":"Riotte, Carrots Love Tomatoes"},{"crop":"basil","companion":"carrot","type":"beneficial","mechanism":"pest_repellent","description":"Basil's volatile oils deter carrot fly and aphids; useful interplant in late summer when basil is at peak aromatic strength.","strength":"moderate","source":"Cornell Cooperative Extension"},{"crop":"marigold","companion":"tomato","type":"beneficial","mechanism":"pest_repellent","description":"French marigolds (Tagetes patula) produce alpha-terthienyl and other thiophene compounds in their roots that suppress root-knot nematodes (Meloidogyne spp.). The strongest empirically-supported companion-planting effect known. Plant 12-18 inches from tomato roots.","strength":"strong","source":"UC ANR; USDA-ARS nematology research"}],"antagonist":[],"warnings":[]}}