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| Luzernezierlaus f (Pterocallidium maculatum, Therioaphis maculata, Therioaphis trifolii); Luzernezierblattlaus f (Pterocallidium maculatum, Therioaphis maculata, Therioaphis trifolii) | |||
| Luzernezierblattlaus f (Therioaphis maculata); Luzernezierlaus f (Therioaphis maculata) | |||
| spotted alfalfa aphid: 4 phrases in 1 subject |
| Entomology | 4 |