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Occurrence, growth and survival of Aphis craccivora (Homoptera: Aphididae) on some weeds in a rain forest area of Nigeria
Author(s) -
OFUYA T. I.
Publication year - 1988
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1988.tb03298.x
Subject(s) - aphis craccivora , biology , homoptera , aphid , weed , aphididae , vigna , botany , agronomy , toxicology , horticulture , pest analysis
SUMMARY Twenty‐five weed species that commonly infest farmlands in Ondo, Nigeria were sampled monthly in 1985 for Aphis craccivora. The aphid was found on Euphorbia hirta, E. glomifera and Boerhaavia diffusa , mainly during the off‐seasons of the principal host plants. In the laboratory, A. craccivora reared on Vigna unguiculata showed lower progeny mortality, and produced heavier and more fecund females than those reared on any of the three alternative weed hosts. Progeny mortality was also lower, and adult weight higher, on B. diffusa than on the Euphorbia weeds.