Terry Whittaker / 2020VISION / Swarm of Greenfly (winged aphids), Rutland Water, Rutland, UK, April. Photographer quote: 'It's quite difficult to take photographs with greenfly in your eyes, nose and ears!' Did you know? Although s...

Nigel Cattlin / Elder aphid (Aphis sambuci) infestation on the young shoot of ornamental Elder (Sambucus sp) in garden. Berkshire, England, UK. April.

Nigel Cattlin / Lupin aphid (Macrosiphum albifrons) infestation on stem and apical shoots of young Tree lupin (Lupinus arboreus). Berkshire, England, UK. May.

Nigel Cattlin / Glasshouse-potato aphid (Aulacorthum solani) colony on Hibiscus (Hibiscus sp) flower bud, house plant.

Nigel Cattlin / Glasshouse / Tuber mealybugs (Pseudococcus viburni) on stem of house plant, close up. UK, January.

Nigel Cattlin / Glasshouse / Tuber mealybugs (Pseudococcus viburni) on stem of house plant, close up. UK, January.

Nigel Cattlin / Mealy cabbage aphid (Brevicoryne brassicae) infestation on Brassica stem. Berkshire, England, UK. June.

Nigel Cattlin / Mealy cabbage aphid (Brevicoryne brassicae) infestation on Brassica stem. Berkshire, England, UK. June.

Nigel Cattlin / Mealy cabbage aphid (Brevicoryne brassicae) infestation on secondary host plant Hedge mustard (Alliaria petiolata). Berkshire, England, UK. June.

Nigel Cattlin / Potato aphid (Macrosiphum euphorbiae) infestation on Tulip (Tulipa sp) petal. Berkshire, England, UK. May.

Nigel Cattlin / Glasshouse mealybug (Pseudococcus viburni) infestation on Bougainvillea (Bougainvillea sp) peduncle in conservatory, UK. August.

Nigel Cattlin / Foxglove aphid (Aulacorthum solani) infestation on Bougainvillea (Bougainvillea sp) flower in conservatory, UK. August.