تصميم گيري براساس روش نمونه برداري دنباله اي در مديريت تلفيقي آفات گندم در استان لرستان

Decision making system based on sequential sampling method in IPM of wheat in Lorestan province

In this study design a decision-making system in integrated pest management of wheat fields in Lorestan province. Fifty fields were sampled through the province for calibration of system according to binomial sequential sampling model. In one hectare of each field moving v-shape and sampling twenty wheat plants (four samples, each sample five plants) and recording pest infestation based on present or absent of it. Sample variance of wheat pests including wheat bug, wheat thrips, wheat aphids, (in plant souper Guide), coleopteran leaf feather larves according their importance are 0.16, 0.41, 0.28 and 0.19, and number of sample for each pest according K parameter respectively are 9, 10, 9 and 17 respectively. In this study Binnsʹs method was used for calculated relationship between Ln (m) and Ln (-Ln (PL) in simple linear regression method. Line of stop sampling for wheat pest respectively are 0.25, 0.435, 0.465 and 0.176 that used for forecasting system of wheat pest and PL, PU were appreciated in wheat fields for decision making.