Title: Laboratory studies on aggregation, size and fecundity in the black bean aphid, <i>Aphis fabae</i> Scop.
Abstract: Adults of Aphis fabae Scop. can weigh from as little as 200 μg to as much as 1 800 μg (Way & Banks, 1967), a remarkable range in size for a single species. An extensive range in size also occurs among the adults in other species of aphid (Murdie, 1969 a , b ; Dixon, 1970). Small individuals result when aphids develop either under crowded conditions or on a mature host-plant; large aphids result when the nymphs are reared in isolation or on young or senescent host-plants (Way & Banks, 1967; Murdie, 1969 a , b ; Dixon, 1970). A small adult produces fewer nymphs and also smaller nymphs than average (Murdie, 1969 b ; Dixon, 1970). When aphids are overcrowded or feed on host-plants of poor quality, many aphids reach maturity that might otherwise fail to mature because of the ability of the species to produce viable adults of a great variety of size, including very small adults (Way & Banks, 1967).
Publication Year: 1971
Publication Date: 1971-10-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 175
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