| Subject | English | French |
| nat.res. | alfalfa blotch leafminer | mineuse virgule de la luzerne (Agromyza frontella) |
| pest.contr. | apple and citrus sooty blotch | blotch fumeux des pommes Gloeodes pomigena |
| pest.contr. | apple and citrus sooty blotch | maladie de la suie pommier; Gloeodes pomigena |
| agric. | Apple blotch disease, Apple sooty blotch, Citrus sooty blotch | blotch fumeux (Dothidea pomigena, Gloeodes pomigena, Marssonina mali, Phyllosticta solitaria) |
| agric. | Apple blotch disease, Apple sooty blotch, Citrus sooty blotch | maladie de la suie du pommier (Dothidea pomigena, Gloeodes pomigena, Marssonina mali, Phyllosticta solitaria) |
| agric. | Apple blotch disease, Apple sooty blotch, Citrus sooty blotch | suie du pommier (Dothidea pomigena, Gloeodes pomigena, Marssonina mali, Phyllosticta solitaria) |
| agric. | Apple blotch disease, Apple sooty blotch, Citrus sooty blotch | suie du poirier (Dothidea pomigena, Gloeodes pomigena, Marssonina mali, Phyllosticta solitaria) |
| agric. | Apple blotch disease, Apple sooty blotch, Citrus sooty blotch | tache de suie du pommier (Dothidea pomigena, Gloeodes pomigena, Marssonina mali, Phyllosticta solitaria) |
| agric. | Apple blotch disease, Apple sooty blotch, Citrus sooty blotch | tache de suie du poirier (Dothidea pomigena, Gloeodes pomigena, Marssonina mali, Phyllosticta solitaria) |
| agric. | Apple blotch disease, Apple sooty blotch, Citrus sooty blotch | blotch du pommier (Dothidea pomigena, Gloeodes pomigena, Marssonina mali, Phyllosticta solitaria) |
| entomol. | aspen blotch miner | mineuse du tremble (Lithocolletis tremuloidiella) |
| entomol. | aster blotch miner | mineuse de l'aster (Tischeria solidaginifoliella) |
| nat.sc., agric. | bacterial blotch | taches bactériennes |
| nat.sc., agric. | bacterial blotch | "goutte" |
| coff. | berry blotch | maladie des yeux bruns des feuilles Cercospora coffeicola |
| ichtyol. | blotch-eyed soldier | rouget à œillères (Myripristis murdjan) |
| ichtyol. | blotch-eyed soldier | marignan pomme de pin (Myripristis murdjan) |
| ichtyol. | blotch-eyed soldierfish | marignan à œillères (Myripristis berndti) |
| entomol. | blotch miners | lithocollétidés (Gracillariidae, Lithocolletidae) |
| entomol. | blotch miners | gracilaires (Gracillariidae, Lithocolletidae) |
| pest.contr. | blotch of oats | helminthosporiose de l'avoine Pyrenophora avenae |
| med. | blotch test | test des taches d'encre |
| nat.sc., agric. | blotched picarel | chuscle (Maena vulgaris, Spicara maena) |
| nat.sc., agric. | brown blotch | "goutte" |
| nat.sc., agric. | brown blotch | taches bactériennes |
| nat.sc., agric. | cephalosporium brown blotch | taches brunes de cephalosporium (Cephalosporium spp.) |
| bot. | covered with marble-like blotches | marbré |
| nat.sc., agric. | fern blotch | aphelenchus du fraisier (Aphelenchoides fragariae) |
| nat.sc., agric. | fern blotch | anguillule du fraisier (Aphelenchoides fragariae) |
| pest.contr. | glume blotch | septoriose du blé Septoria nodorum, Leptosphaeria n. |
| agric. | glume blotch | septoriose du blé (Septoria nodorum) |
| agric. | glume blotch of wheat | septoriose du blé (Septoria nodorum) |
| fish.farm. | gold-blotch grouper | mérou badèche (Epinephelus costae) |
| gen. | I came out in red blotches all over | des rougeurs me sont venues sur tout le corps |
| pest.contr. | leaf blotch | septoriose |
| agric. | leaf blotch | Rhynchosporium secalis |
| nat.sc., agric. | leaf-blotch eelworm | anguillule du fraisier (Aphelenchoides fragariae) |
| nat.sc., agric. | leaf-blotch eelworm | aphelenchus du fraisier (Aphelenchoides fragariae) |
| entomol. | leaf blotch miners | lithocollétidés (Gracillariidae, Lithocolletidae) |
| entomol. | leaf blotch miners | gracilaires (Gracillariidae, Lithocolletidae) |
| pest.contr. | leaf blotch of horse chestnut | black-rot du marronnier Guignardia aesculi |
| pest.contr. | leaf blotch of walnut | anthracnose du noyer Gnomonia leptostyla |
| pest.contr. | leaf blotch of wheat | septoriose des céréales Mycosphaerella graminicola |
| pest.contr. | leaf blotch of wheat | septoriose du blé Mycosphaerella graminicola |
| pest.contr. | net blotch of barley | taches brunes de l'orge et de l'avoine Drechslera teres |
| nat.sc., agric. | net blotch of barley | taches brunes de l'orge (Helminthosporium teres, Pyrenophora teres) |
| agric. | net blotch of barley | helminthosporiose de l'orge (Rynchosporibum secalis) |
| entomol. | oak blotch miner | mineuse du chêne (Tischeria tinctoriella) |
| agric. | olive blotch | oeil-de-paon (Cycloconium oleaginum) |
| agric. | olive blotch | cycloconium de l'olivier (Cycloconium oleaginum) |
| nat.sc., agric. | olive leaf blotch | maladie en oeil de paon (Cycloconium oleaginum) |
| ichtyol. | one-blotch grouper | Mérou dossard Epinephelus melanostigma |
| med. | palpebral blotch | pinguécula |
| gen. | peacock blotch | oeil-de-paon (Cycloconium oleaginum) |
| med. | pelvic blotches | taches pelviennes |
| pest.contr. | poplar leaf blotch | nécrose des feuilles du peuplier Septotinia populiperda |
| gen. | red blotches due to the cold | des plaques rouges dues au froid |
| pest.contr. | ring blotch | marbrure annulaire |
| agric. | Septoria leaf and glume blotch | septoriose du blé (Septoria nodorum) |
| fish.farm. | six-blotch hind | vieille à six taches (Cephalopholis sexmaculata) |
| pest.contr. | sooty blotch of apple | maladie de la suie pommier; Gloeodes pomigena |
| pest.contr. | sooty blotch of apple | blotch fumeux des pommes Gloeodes pomigena |
| nat.sc., agric. | sooty blotch of apple | maladie de la suie (Gloeodes pomigena) |
| nat.sc., agric. | trichoderma blotch | tache de trichoderma (Trichoderma lignorum, nosogena: Trichoderma viride) |
| pest.contr. | walnut blotch | anthracnose du noyer Gnomonia leptostyla |
| nat.sc., agric. | walnut blotch | anthracnose du noyer (Gnomonia leptostyla, Marssonina juglandis) |
| pest.contr. | yellow leaf blotch of sorghum | tache helminthosporienne Pseudomonas (spp.) |