2017 Volume 59 Pages 77-80
We surveyed the density of adults and larvae of Thrips hawaiiensis (Morgan) at 9 different developmental stages of flowers and pods of garden pea (snap pea), Pisum sativum L., in autumn (mid-November), winter (late-January), and spring (late-April) from 2015 to 2016, to elucidate suitable periods for quantitative pest censuses both for the adults and larvae. The density of both the adults and larvae differed largely and significantly among the developmental stages of the flowers and pods. The adult density was highest at the blooming stage, whereas the larval density was highest at the immature pod stage in autumn and spring and at the mature pod stage in winter.
