Premium
Effect of host age on rate of development of Dinarmus basalis (Rond.) (Hym., Pteromalidae)
Author(s) -
Islam W.
Publication year - 1994
Publication title -
journal of applied entomology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.795
H-Index - 60
eISSN - 1439-0418
pISSN - 0931-2048
DOI - 10.1111/j.1439-0418.1994.tb00816.x
Subject(s) - biology , pteromalidae , instar , larva , pupa , parasitoid , callosobruchus chinensis , botany , zoology
Development time for the parasitoid Dinarmus basalis (Rond.) was shorter on 4th instar larvae and pre‐pupae than on 2nd and 3rd instar larvae of the pulse beetle, Callosobruchus chinensis (L.). This was primarily because of qualitative or quantitative differences between 4th instar larvae or pre‐pupae and 2nd or 3rd instar larvae as hosts. Development time and progeny production was significantly different between the two sexes (P <0.001). Maximum number of males emerged from 2nd or 3rd instar larvae but females from 4th instar larvae or pre‐pupae. The sex‐ratio of D. basalis was strongly female‐biased. Female parasitoids were bigger when developing from 4th instar larvae.