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| woolly aphid (Eriosoma lanigerum); woolly apple aphid (Eriosoma lanigerum) | |||
| elm rosette aphid (Eriosoma lanigerum); woolly aphid (Eriosoma lanigerum); woolly apple aphid (Eriosoma lanigerum) | |||
| apple root aphid (Eriosoma lanigerum) | |||
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| American blight | |||
| puceron lanigère: 26 phrases in 4 subjects |
| Entomology | 11 |
| Life sciences | 1 |
| Natural resourses and wildlife conservation | 2 |
| Natural sciences | 12 |