green aphid macrosiphum rosae on rose hips rosa canina.

animal aphid aphids biology blossom canina control cultivate cultivation day diplocarpon disease diseased eanina farming flower focus foliage fungus garden green hips infection infest leaf macrosiphum microorganism nature parasite parasites pesticide phytopathology pink plant problem protection rosa rosae rose rosehip roses science selective small spots spring summer sunny symptoms