| Rating | Solver | Clue |
|---|---|---|
| GREENFLY | Plant louse | |
| APHID | Plant louse | |
| APHIS | Plant louse | |
| PUCERON | Any plant louse, or aphis. | |
| PSYLLA | Any leaping plant louse of the genus Psylla, or family Psyllidae. | |
| FLEA-LOUSE | A jumping plant louse of the family Psyllidae, of many species. That of the pear tree is Psylla pyri. | |
| BLIGHT | A downy species of aphis, or plant louse, destructive to fruit trees, infesting both the roots and branches; -- also applied to several other injurious insects. | |