| Name | Abbrev | Use for | Quantity | 
| Ocinum basilicum | Oci-b. | HoverShrivelled by fungal disease; |  | 
| Ocimum canum | Oci. | HoverCalcium deficiency; copper deficiency; manganese deficiency; phosphorus deficiency; zinc deficiency; calcium excess; copper excess; manganese excess; phosphorus excess; potassium excess; zinc excess; |  | 
| Oniscus asellus | Onis. | HoverInjury from disease; injury from fire; mechanical injury; injury from storm; absent fruit; diminished fruit; unhealthy fruit; capillary paralysis; excessive polination; pseudomonas; black spot; |  | 
| Oxalicum acidum | Ox-ac. | Hoverimpaired photosynthesis; excessive evaporation; deficient respiration; |  | 
| Phosphoricum acidum | Phos-ac. | HoverCalcium deficiency; copper deficiency; Iron deficiency; magnesium deficiency; manganese deficiency; molybdenum deficiency; zinc deficiency; calcium excess; copper excess; iron excess; magnesium excess; manganese excess; molybdenum excess; zinc excess; 
 |  | 
| Phosphorus | Phos. | HoverCalcium deficiency; copper deficiency; Iron deficiency; magnesium deficiency; manganese deficiency; molybdenum deficiency; zinc deficiency; calcium excess; copper excess; iron excess; magnesium excess; manganese excess; molybdenum excess; zinc excess; |  | 
| Porcellion scaber | Phos. | Porc-sc. | HoverSlaters; |  | 
| Plumbum metallicum | Plb. | HoverComing soon |  | 
| Ricinus communis | Ric. | HoverInjury by insect; shrivelled by pests; caterpillars; crickets; moths; hawk moth; mites; rust mite; vinemite; 
 |  | 
| Ruta graveolens | Ruta. | HoverInjury by insect; shrivelled by pests; flies; |  | 
| Salicylicum acidum | Sal-ac. | HoverBurnt by fire; injury by storm; viral diseases; blue discolouration; purple discolouration; shrivelled by bacterial disease; shrivelled by pests; impaired photosynthesis; anthracnose; blight from bacteria; blight from virus; gangrene; mold; wet mold; dry mold; wet rot – foamy; wet rot – with patches; stripe – bacterial; virus – alfalfa, barley yellow dwarf, mosaic, potato, tobacco mosaic virus; aphids; aphids with yellow dwarf virus; slaters; |  | 
| Salvia officinalis | Salv. | HoverScales; |  | 
| Sambucus nigra | Samb. | HoverSpot; caterpillars; army worms; budworm; cluster caterpillar; cutworm; spitfire; webworm; moths; diamondback moth; potato moth; sawfly; |  | 
| Satureia hortensis | Sat-h. | HoverSpot; caterpillars; army worms; budworm; cluster caterpillar; cutworm; spitfire; webworm; moths; diamondback moth; potato moth; sawfly; 
 |  | 
| Secale cornutum | Sec. | HoverErgot; |  | 
| Shellac | Shel. | HoverScales; hard scales; honeydew scales; soft scales; |  | 
| Silica marina | Sil-mar. | HoverComing soon. |  | 
| Silicea terra | Sil. | HoverShrivelled by fungal disease; carbon deficiency; carbon excess; budworm; transplant shock; moisture repellent soils; fruit and flower setting; |  | 
| Sulphur | Sulph. | HoverCalcium deficiency; copper deficiency; magnesium deficiency; molybdenum deficiency; calcium excess; copper excess; magnesium excess; molybdenum excess; |  | 
| Sulphuricum acidum | Sul-ac. | HoverComing soon |  | 
| Syrphida larva | Syrp. | HoverShrivelled by pests; bean beetle; blister beetle; mealy bugs; squash bugs; caterpillars; army worms; budworm; cluster caterpillar; cutworm; loopers; procession moth; spitfire; webworm; cicarda; flies; hawk moth; leafhoppers; maggots; rust mite; cabbage moth; diamondback moth; grapevine moth; potato moth; procession moth; sawfly; sawfly larvae; thrips; |  | 
| Syntocinon | Syn. | HoverComing soon |  | 
| Tagetes erecta | Tag-e. | HoverComing soon |  | 
| Tanacetum vulgare | Tanac. | HoverInjury by insect; nematodes; shrivelled by nematodes; blight from nematodes; ants; caterpillars; flies; hawk moth; moths; diamondback moth; grapevine moth; potato moth; procession moth; root knot nematode; sawfly; |  | 
| Tarentula cubensis | Tarent-c. | HoverComing soon |  | 
| Tarentula hispanica | Tarent. | HoverComing soon |  | 
| Teucrium marum | Teucr. | HoverInjury by insect; nematodes; shrivelled by nematodes; blight from nematodes; ants; caterpillars; flies; moths; cabbage moth; root knot nematode; |  | 
| Theridion | Ther. | HoverComing soon |  | 
|  |  |  |  | 
| Thuja occidentalis | Thuj. | HoverInjury by insect; curly top; gall; bettles; katydids; leafminers; blister mite; redlegged mite; rust mite; moths; maggots; sawfly; claes; thrips; wasps; weevils; 
 |  | 
| Trombidium muscae domesticae | Trom. | HoverMites; |  | 
| Urea pura | Urea. | HoverDisturbed capillary; chlorosis; impaired photosynthesis; 
 |  | 
| Ustilago maydis | Ust. | HoverComing soon |  | 
| Vaccinum myrtillus | Vacc-m. | HoverWeeds 
 |  | 
| Valerian officinalis | Valer. | HoverCopper deficiency; sulphur deficiency; copper excess; sulphur excess; |  | 
| Viburnum opulus | Vib. | HoverDry epidermis; fruits fall early; shrivelled ovaries; excessive evaporation; poor mineral update; mites; moths; sawfly; pale roots; 
 |  | 
| Zincum metallicum | Zinc. | HoverCalcium deficiency; copper deficiency; Iron deficiency; phosphorus deficiency; sulphur deficiency; zinc deficiency; calcium excess; copper excess; iron excess; phosphorus excess; sulphur excess; zinc excess; |  |