Aphids
larger than the other. For a large part of the season an aphid population consists of viviparous females. As reproduction is asexual, the progeny of a single [...] result, the plant’s growth is retarded, giving rise to deformed leaves, or even, if the infestation occurs early enough in the season, the death of young [...] very large group of insects: the super- family Aphidoidea, belonging to the order Hemiptera . The aphids discussed here all belong to the family Aphididae