Premium
Demographic parameters of the two main fruit fly ( D iptera: Tephritidae) species attacking mango in C entral T anzania
Author(s) -
Salum J. K.,
Mwatawala M. W.,
Kusolwa P. M.,
Meyer M. D.
Publication year - 2014
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/jen.12044
Subject(s) - fecundity , biology , tephritidae , population , botany , horticulture , zoology , demography , pest analysis , sociology
Fruit flies (Diptera: Tephritidae) are among the most important pests damaging fruit crops growing in Tanzania. Demographic parameters for C eratitis cosyra (Walker) and B actrocera invadens (Drew, Tsuruta & White) are reported and compared. These include pre‐adult survival and development rates, adult survival and fecundity and population parameters such as the intrinsic rate of increase, and mean generation time. Population and biological parameters of the C . cosyra and B . invadens were measured in an environmental chamber at 25°C and 30°C with 75% RH and at room temperature ranging 23–28°C. The results showed that B . invadens had shorter embryonic, larval and pupal development times than C . cosyra independent of temperature. Life expectancy of male B . invadens was significantly greater than that of C . cosyra , while life expectancy of female B . invadens was greater than that of C . cosyra but not significantly. Average net fecundity was higher for B . invadens than for C. cosyra . Both species attained their highest intrinsic rate of increase and net reproductive rate at 30°C. B . invadens exhibited higher intrinsic rate of increase and net reproductive rate than C . cosyra at all temperatures tested.