Honeydew excretion in the pea aphid, Acyrthosiphon pisum (Harr.) (Homoptera: Aphididae)
1958; Elsevier BV; Volume: 2; Issue: 4 Linguagem: Inglês
10.1016/0022-1910(58)90018-0
ISSN1879-1611
Autores Tópico(s)Agricultural pest management studies
ResumoA technique was devised for measuring the rate and frequency of honeydew excretion by the pea aphid, Acyrthosiphon pisum (Harr.), reared on pea plants, Pisum sativum L., under greenhouse conditions. The average droplet volume and the mean frequency and rate of excretion increased from the first-instar larva to the adult stage and decreased slightly during parthenogenetic reproduction. Quantitative chromatographic analyses of honeydew yielded 19 free amino acids and amides that are present also in the pea plant and the aphid blood. The total concentration of these compounds in honeydew was similar to that in aphid blood, but was 2–10 times as high as that in pea plant juice.
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