| Nombre científico |
Tipo de plaga |
| Lactuca tatarica (L) C.A. Mey |
Maleza |
| Laetiporus baudonii (Pat.) Ryvarde |
Hongo |
| Lampides boeticus Linnaeus |
Insectos |
| Laodelphax striatellus (Fallén) |
Insectos |
| Leguminivora ptychora Meyrick |
Insectos |
| Lema pectoralis Baly |
Insectos |
| Lepidium draba L. |
Maleza |
| Leptinotarsa decemlineata (Say) |
Insectos |
| Leptochloa chinensis (L.) Nees |
Maleza |
| Leptocorisa acuta Thunberg |
Insectos |
| Leptocorisa oratorius (Fabricius) |
Insectos |
| Leptosphaeria avenaria G.F. Weber |
Hongo |
| Lettuce mosaic virus |
Virus |
| Lettuce necrotic yellows virus |
Virus |
| Leucinodes orbonalis Guenée |
Insectos |
| Leucoptera malifoliella Costa |
Insectos |
| Limnophila sessiliflora (Vahl) Blume |
Maleza |
| Limothrips cerealium (Haliday) |
Insectos |
| Linaria dalmatica (L.) Miller |
Maleza |
| Linaria vulgaris Miller |
Maleza |
| Liorhyssus hyalinus (Fabricius) |
Insectos |
| Liriomyza bryoniae Kaltenbach |
Insectos |
| Listronotus bonariensis (Kuschel) |
Insectos |
| Lixus juncii Boheman |
Insectos |
| Lobesia botrana Denis & Schiffermüller |
Insectos |
| Lophodermium acacicola Tehon |
Hongo |
| Lophodermium canberrianum W. Stahl ex Minter & Millar |
Hongo |
| Lopholeucaspis japonica (Cockerell) |
Insectos |
| Lycium ferocissimum Miers |
Maleza |
| Lymantria dispar Linnaeus |
Insectos |