Open AccessTHE BIOLOGY AND LABORATORY REARING OF A NEW LEPTOPIINE WEEVIL, A PEST OF LEGUMES IN QUEENSLAND
Author(s) -
ELDER R. J.,
BROWN J. D.,
WICKS R.
Publication year - 1979
Publication title -
australian journal of entomology
Language(s) - English
Resource type - Journals
eISSN - 1440-6055
pISSN - 1326-6756
DOI - 10.1111/j.1440-6055.1979.tb00817.x
Subject(s) - biology , weevil , curculionidae , instar , larva , vigna , pest analysis , pasture , seedling , agronomy , ecology , botany
The temporal incidence of the various life history stages of a new leptopiine weevil (Coleoptera: Curculionidae) is given. Distribution records were all from far north coastal Queensland. Most adults emerged from earthen cells (at a mean depth of 100 mm) with the first storm rains yielding approximately SO mm in October‐November. Adult pairs of the leptopiine were fed on germinated Vigna sinensis seed and provided with 25 mm squares of tissue paper as oviposition substrate. Eggs were incubated at temperatures ranging from 10.1 to 31.7 ± 0.5°C. Larvae were reared in the laboratory on V. sinensis seedlings. The number of larval instars was estimated as six on a basis of head capsule measurements. Host plant records all from the family Leguminoseae include a number of pasture legumes. Chemical and cultural methods of control are outlined.