brief report) study relationship between temperature and developmental rate of two-spotted spider mite, tetranychus turkestani ( acari :tetranychidae ) using the temperature models

arthropod development is affected by temperature. knowledge of relationship between temperature and mite developmental rates is useful in biological and ecological studies. effect of six constant temperatures (15, 20, 25, 30, 35, 40 ) on developmental rate of all stages of two-spotted spider mite, tetranychus turkestani ugarov & nicolski, were investigated under laboratory conditions at 55 10% r.h and a photoperiod of 16:8 l:d and developmental rate of the mite modeled as a function of temperature. the performance of one linear and 11 nonlinear developmental rate models (logan–6, logan–10, sharp and demichele, taylor, lamb-1, lamb-2, hilbert and logan, briere–1, briere–2, lactine–1 and lactine–2) were compared and based on the criteria such as adjusted coefficient of determination (r2), the residual sum of squares (ssr) and estimation of biological parameters the best model was selected. the results indicated that the briere–2 model (r2= 0.996 , ssr = 0.00022) was the best model for description of the mite biological parameters.